diff --git a/beacon_chain/beacon_chain_db_immutable.nim b/beacon_chain/beacon_chain_db_immutable.nim
index 26b6856697..b51a2eaf42 100644
--- a/beacon_chain/beacon_chain_db_immutable.nim
+++ b/beacon_chain/beacon_chain_db_immutable.nim
@@ -16,7 +16,7 @@ from ./spec/datatypes/capella import
 from ./spec/datatypes/eip4844 import ExecutionPayloadHeader
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to a phase0 BeaconState for in-place SSZ reading and writing
   Phase0BeaconStateNoImmutableValidators* = object
     # Versioning
@@ -67,7 +67,7 @@ type
     current_justified_checkpoint*: Checkpoint
     finalized_checkpoint*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to an Altair BeaconState for in-place SSZ
   # reading and writing
   AltairBeaconStateNoImmutableValidators* = object
@@ -124,7 +124,7 @@ type
     current_sync_committee*: SyncCommittee     # [New in Altair]
     next_sync_committee*: SyncCommittee        # [New in Altair]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to a Bellatrix BeaconState for in-place SSZ
   # reading and writing
   BellatrixBeaconStateNoImmutableValidators* = object
diff --git a/beacon_chain/consensus_object_pools/README.md b/beacon_chain/consensus_object_pools/README.md
index 183d3fd3f4..58ebbf9a5e 100644
--- a/beacon_chain/consensus_object_pools/README.md
+++ b/beacon_chain/consensus_object_pools/README.md
@@ -4,12 +4,12 @@ This folder holds the various consensus object pools needed for a blockchain cli
 
 Object in those pools have passed the "gossip validation" filter according
 to specs:
-- blocks: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_block
-- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
-- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#voluntary_exit
-- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#attester_slashing
-- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#proposer_slashing
+- blocks: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_block
+- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#voluntary_exit
+- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#attester_slashing
+- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#proposer_slashing
 
 After "gossip validation" the consensus objects can be rebroadcasted as they are optimistically good, however for internal processing further verification is needed.
 For blocks, this means verifying state transition and all contained cryptographic signatures (instead of just the proposer signature).
diff --git a/beacon_chain/consensus_object_pools/block_pools_types.nim b/beacon_chain/consensus_object_pools/block_pools_types.nim
index 497e33c971..7f86a3d71b 100644
--- a/beacon_chain/consensus_object_pools/block_pools_types.nim
+++ b/beacon_chain/consensus_object_pools/block_pools_types.nim
@@ -235,7 +235,7 @@ type
       ## committee messages will be rejected
 
     optimisticRoots*: HashSet[Eth2Digest]
-      ## https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/sync/optimistic.md#helpers
+      ## https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/sync/optimistic.md#helpers
 
   EpochKey* = object
     ## The epoch key fully determines the shuffling for proposers and
diff --git a/beacon_chain/consensus_object_pools/consensus_manager.nim b/beacon_chain/consensus_object_pools/consensus_manager.nim
index b81b89ee0b..6988d07856 100644
--- a/beacon_chain/consensus_object_pools/consensus_manager.nim
+++ b/beacon_chain/consensus_object_pools/consensus_manager.nim
@@ -175,7 +175,7 @@ proc runForkchoiceUpdated*(
   # block hash provided by this event is stubbed with
   # `0x0000000000000000000000000000000000000000000000000000000000000000`."
   # and
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/validator.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/validator.md#executionpayload
   # notes "`finalized_block_hash` is the hash of the latest finalized execution
   # payload (`Hash32()` if none yet finalized)"
   doAssert not headBlockRoot.isZero
diff --git a/beacon_chain/consensus_object_pools/spec_cache.nim b/beacon_chain/consensus_object_pools/spec_cache.nim
index f19533bbaf..b92e50ac99 100644
--- a/beacon_chain/consensus_object_pools/spec_cache.nim
+++ b/beacon_chain/consensus_object_pools/spec_cache.nim
@@ -25,7 +25,7 @@ logScope: topics = "spec_cache"
 func count_active_validators*(shufflingRef: ShufflingRef): uint64 =
   shufflingRef.shuffled_active_validator_indices.lenu64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_committee_count_per_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_committee_count_per_slot
 func get_committee_count_per_slot*(shufflingRef: ShufflingRef): uint64 =
   get_committee_count_per_slot(count_active_validators(shufflingRef))
 
@@ -38,7 +38,7 @@ func get_committee_index*(shufflingRef: ShufflingRef, index: uint64):
     Result[CommitteeIndex, cstring] =
   check_attestation_index(index, get_committee_count_per_slot(shufflingRef))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_committee
 iterator get_beacon_committee*(
     shufflingRef: ShufflingRef, slot: Slot, committee_index: CommitteeIndex):
     (int, ValidatorIndex) =
@@ -51,7 +51,7 @@ iterator get_beacon_committee*(
     committees_per_slot * SLOTS_PER_EPOCH
   ): yield (index_in_committee, idx)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee*(
     shufflingRef: ShufflingRef, slot: Slot, committee_index: CommitteeIndex):
     seq[ValidatorIndex] =
@@ -64,7 +64,7 @@ func get_beacon_committee*(
     committees_per_slot * SLOTS_PER_EPOCH
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee_len*(
     shufflingRef: ShufflingRef, slot: Slot, committee_index: CommitteeIndex): uint64 =
   ## Return the number of members in the beacon committee at ``slot`` for ``index``.
@@ -76,7 +76,7 @@ func get_beacon_committee_len*(
     committees_per_slot * SLOTS_PER_EPOCH
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_attesting_indices
 iterator get_attesting_indices*(shufflingRef: ShufflingRef,
                                 slot: Slot,
                                 committee_index: CommitteeIndex,
@@ -155,7 +155,7 @@ func get_attesting_indices_one*(shufflingRef: ShufflingRef,
     res = some(validator_index)
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_attesting_indices
 func get_attesting_indices*(shufflingRef: ShufflingRef,
                             slot: Slot,
                             committee_index: CommitteeIndex,
@@ -181,7 +181,7 @@ func makeAttestationData*(
 
   doAssert current_epoch == epochRef.epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.asUInt64,
@@ -191,7 +191,7 @@ func makeAttestationData*(
       epoch: current_epoch,
       root: epoch_boundary_block.blck.root))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#validator-assignments
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#validator-assignments
 iterator get_committee_assignments*(
     shufflingRef: ShufflingRef, validator_indices: HashSet[ValidatorIndex]):
     tuple[committee_index: CommitteeIndex,
diff --git a/beacon_chain/consensus_object_pools/sync_committee_msg_pool.nim b/beacon_chain/consensus_object_pools/sync_committee_msg_pool.nim
index 1a4a5e76d8..b74f99c036 100644
--- a/beacon_chain/consensus_object_pools/sync_committee_msg_pool.nim
+++ b/beacon_chain/consensus_object_pools/sync_committee_msg_pool.nim
@@ -295,7 +295,7 @@ proc produceSyncAggregate*(
 
 proc isEpochLeadTime*(
     pool: SyncCommitteeMsgPool, epochsToSyncPeriod: uint64): bool =
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#sync-committee-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#sync-committee-subnet-stability
   # This ensures a uniform distribution without requiring additional state:
   # (1/4)                         = 1/4, 4 slots out
   # (3/4) * (1/3)                 = 1/4, 3 slots out
diff --git a/beacon_chain/eth1/eth1_monitor.nim b/beacon_chain/eth1/eth1_monitor.nim
index dcfe32a8a0..2f2a34e1d4 100644
--- a/beacon_chain/eth1/eth1_monitor.nim
+++ b/beacon_chain/eth1/eth1_monitor.nim
@@ -211,11 +211,11 @@ template toGaugeValue(x: Quantity): int64 =
 #  doAssert SECONDS_PER_ETH1_BLOCK * cfg.ETH1_FOLLOW_DISTANCE < GENESIS_DELAY,
 #             "Invalid configuration: GENESIS_DELAY is set too low"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#get_eth1_data
 func compute_time_at_slot(genesis_time: uint64, slot: Slot): uint64 =
   genesis_time + slot * SECONDS_PER_SLOT
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#get_eth1_data
 func voting_period_start_time(state: ForkedHashedBeaconState): uint64 =
   let eth1_voting_period_start_slot =
     getStateField(state, slot) - getStateField(state, slot) mod
@@ -223,7 +223,7 @@ func voting_period_start_time(state: ForkedHashedBeaconState): uint64 =
   compute_time_at_slot(
     getStateField(state, genesis_time), eth1_voting_period_start_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#get_eth1_data
 func is_candidate_block(cfg: RuntimeConfig,
                         blk: Eth1Block,
                         period_start: uint64): bool =
@@ -961,7 +961,7 @@ template trackFinalizedState*(m: Eth1Monitor,
                               finalizedStateDepositIndex: uint64): bool =
   trackFinalizedState(m.depositsChain, finalizedEth1Data, finalizedStateDepositIndex)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#get_eth1_data
 proc getBlockProposalData*(chain: var Eth1Chain,
                            state: ForkedHashedBeaconState,
                            finalizedEth1Data: Eth1Data,
diff --git a/beacon_chain/eth1/merkle_minimal.nim b/beacon_chain/eth1/merkle_minimal.nim
index 52d23c3920..873d1179af 100644
--- a/beacon_chain/eth1/merkle_minimal.nim
+++ b/beacon_chain/eth1/merkle_minimal.nim
@@ -7,7 +7,7 @@
 
 {.push raises: [].}
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/tests/core/pyspec/eth2spec/utils/merkle_minimal.py
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/tests/core/pyspec/eth2spec/utils/merkle_minimal.py
 
 # Merkle tree helpers
 # ---------------------------------------------------------------
diff --git a/beacon_chain/gossip_processing/README.md b/beacon_chain/gossip_processing/README.md
index f3eb7beb71..5de09fad93 100644
--- a/beacon_chain/gossip_processing/README.md
+++ b/beacon_chain/gossip_processing/README.md
@@ -9,12 +9,12 @@ This folder holds a collection of modules to:
 
 Gossip validation is different from consensus verification in particular for blocks.
 
-- Blocks: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_block
-- Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#attestation-subnets
-- Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#voluntary_exit
-- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#proposer_slashing
-- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#attester_slashing
+- Blocks: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_block
+- Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#attestation-subnets
+- Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#voluntary_exit
+- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#proposer_slashing
+- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#attester_slashing
 
 There are multiple consumers of validated consensus objects:
 - a `ValidationResult.Accept` output triggers rebroadcasting in libp2p
diff --git a/beacon_chain/gossip_processing/block_processor.nim b/beacon_chain/gossip_processing/block_processor.nim
index 875a227932..81e27efed5 100644
--- a/beacon_chain/gossip_processing/block_processor.nim
+++ b/beacon_chain/gossip_processing/block_processor.nim
@@ -631,7 +631,7 @@ proc processBlock(
     # - MUST NOT optimistically import the block.
     # - MUST NOT apply the block to the fork choice store.
     # - MAY queue the block for later processing.
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/sync/optimistic.md#execution-engine-errors
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/sync/optimistic.md#execution-engine-errors
     await sleepAsync(chronos.seconds(1))
     self[].addBlock(
       entry.src, entry.blck, entry.blobs, entry.resfut, entry.validationDur)
diff --git a/beacon_chain/gossip_processing/gossip_validation.nim b/beacon_chain/gossip_processing/gossip_validation.nim
index 8626db3094..9c9ac0db53 100644
--- a/beacon_chain/gossip_processing/gossip_validation.nim
+++ b/beacon_chain/gossip_processing/gossip_validation.nim
@@ -93,7 +93,7 @@ func check_propagation_slot_range(
   let
     pastSlot = (wallTime - MAXIMUM_GOSSIP_CLOCK_DISPARITY).toSlot()
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#configuration
   # The spec value of ATTESTATION_PROPAGATION_SLOT_RANGE is 32, but it can
   # retransmit attestations on the cusp of being out of spec, and which by
   # the time they reach their destination might be out of spec.
@@ -179,7 +179,7 @@ template validateBeaconBlockBellatrix(
     parent: BlockRef): untyped =
   discard
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/p2p-interface.md#beacon_block
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/p2p-interface.md#beacon_block
 template validateBeaconBlockBellatrix(
        signed_beacon_block: bellatrix.SignedBeaconBlock |
        capella.SignedBeaconBlock | eip4844.SignedBeaconBlock,
@@ -305,7 +305,7 @@ proc validateBeaconBlock*(
   # proposer for the slot, signed_beacon_block.message.slot.
   #
   # While this condition is similar to the proposer slashing condition at
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#proposer-slashing
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#proposer-slashing
   # it's not identical, and this check does not address slashing:
   #
   # (1) The beacon blocks must be conflicting, i.e. different, for the same
@@ -815,7 +815,7 @@ proc validateAggregate*(
 
   return ok((attesting_indices, sig))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/p2p-interface.md#bls_to_execution_change
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/p2p-interface.md#bls_to_execution_change
 proc validateBlsToExecutionChange*(
     pool: ValidatorChangePool, signed_address_change: SignedBLSToExecutionChange,
     wallEpoch: Epoch): Result[void, ValidationError] =
@@ -843,7 +843,7 @@ proc validateBlsToExecutionChange*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#attester_slashing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#attester_slashing
 proc validateAttesterSlashing*(
     pool: ValidatorChangePool, attester_slashing: AttesterSlashing):
     Result[void, ValidationError] =
@@ -866,7 +866,7 @@ proc validateAttesterSlashing*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#proposer_slashing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#proposer_slashing
 proc validateProposerSlashing*(
     pool: ValidatorChangePool, proposer_slashing: ProposerSlashing):
     Result[void, ValidationError] =
@@ -889,7 +889,7 @@ proc validateProposerSlashing*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#voluntary_exit
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#voluntary_exit
 proc validateVoluntaryExit*(
     pool: ValidatorChangePool, signed_voluntary_exit: SignedVoluntaryExit):
     Result[void, ValidationError] =
@@ -919,7 +919,7 @@ proc validateVoluntaryExit*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/p2p-interface.md#sync_committee_subnet_id
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/p2p-interface.md#sync_committee_subnet_id
 proc validateSyncCommitteeMessage*(
     dag: ChainDAGRef,
     batchCrypto: ref BatchCrypto,
diff --git a/beacon_chain/rpc/rest_config_api.nim b/beacon_chain/rpc/rest_config_api.nim
index 66111944d3..a9776f8a05 100644
--- a/beacon_chain/rpc/rest_config_api.nim
+++ b/beacon_chain/rpc/rest_config_api.nim
@@ -22,7 +22,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
     cachedConfigSpec =
       RestApiResponse.prepareJsonResponse(
         (
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/phase0.yaml
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/phase0.yaml
           MAX_COMMITTEES_PER_SLOT:
             Base10.toString(MAX_COMMITTEES_PER_SLOT),
           TARGET_COMMITTEE_SIZE:
@@ -90,7 +90,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           MAX_VOLUNTARY_EXITS:
             Base10.toString(MAX_VOLUNTARY_EXITS),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/altair.yaml
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/altair.yaml
           INACTIVITY_PENALTY_QUOTIENT_ALTAIR:
             Base10.toString(INACTIVITY_PENALTY_QUOTIENT_ALTAIR),
           MIN_SLASHING_PENALTY_QUOTIENT_ALTAIR:
@@ -106,7 +106,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           UPDATE_TIMEOUT:
             Base10.toString(UPDATE_TIMEOUT),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/bellatrix.yaml
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/bellatrix.yaml
           INACTIVITY_PENALTY_QUOTIENT_BELLATRIX:
             Base10.toString(INACTIVITY_PENALTY_QUOTIENT_BELLATRIX),
           MIN_SLASHING_PENALTY_QUOTIENT_BELLATRIX:
@@ -182,7 +182,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           DEPOSIT_CONTRACT_ADDRESS:
             $cfg.DEPOSIT_CONTRACT_ADDRESS,
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#constants
           # GENESIS_SLOT
           # GENESIS_EPOCH
           # FAR_FUTURE_EPOCH
@@ -209,7 +209,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           DOMAIN_AGGREGATE_AND_PROOF:
             to0xHex(DOMAIN_AGGREGATE_AND_PROOF.data),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#constants
           TIMELY_SOURCE_FLAG_INDEX:
             to0xHex([byte(TIMELY_SOURCE_FLAG_INDEX)]),
           TIMELY_TARGET_FLAG_INDEX:
@@ -236,7 +236,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
             to0xHex(DOMAIN_CONTRIBUTION_AND_PROOF.data),
           # PARTICIPATION_FLAG_WEIGHTS
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#constants
           TARGET_AGGREGATORS_PER_COMMITTEE:
             Base10.toString(TARGET_AGGREGATORS_PER_COMMITTEE),
           RANDOM_SUBNETS_PER_VALIDATOR:
@@ -246,7 +246,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           ATTESTATION_SUBNET_COUNT:
             Base10.toString(ATTESTATION_SUBNET_COUNT),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#constants
           TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE:
             Base10.toString(uint64(TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE)),
           SYNC_COMMITTEE_SUBNET_COUNT:
diff --git a/beacon_chain/spec/beacon_time.nim b/beacon_chain/spec/beacon_time.nim
index b9a2b55f22..1a701c65cb 100644
--- a/beacon_chain/spec/beacon_time.nim
+++ b/beacon_chain/spec/beacon_time.nim
@@ -134,22 +134,22 @@ template `+`*(a: TimeDiff, b: Duration): TimeDiff =
 const
   # Offsets from the start of the slot to when the corresponding message should
   # be sent
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#attesting
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#attesting
   attestationSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#broadcast-aggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#broadcast-aggregate
   aggregateSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64  * 2 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#prepare-sync-committee-message
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#prepare-sync-committee-message
   syncCommitteeMessageSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64  div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#broadcast-sync-committee-contribution
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#broadcast-sync-committee-contribution
   syncContributionSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64  * 2 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/p2p-interface.md#sync-committee
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/p2p-interface.md#sync-committee
   lightClientFinalityUpdateSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/p2p-interface.md#sync-committee
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/p2p-interface.md#sync-committee
   lightClientOptimisticUpdateSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64 div INTERVALS_PER_SLOT)
 
@@ -183,7 +183,7 @@ func slotOrZero*(time: BeaconTime): Slot =
   if exSlot.afterGenesis: exSlot.slot
   else: Slot(0)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_epoch_at_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_epoch_at_slot
 func epoch*(slot: Slot): Epoch = # aka compute_epoch_at_slot
   ## Return the epoch number at ``slot``.
   if slot == FAR_FUTURE_SLOT: FAR_FUTURE_EPOCH
@@ -197,14 +197,14 @@ func since_epoch_start*(slot: Slot): uint64 = # aka compute_slots_since_epoch_st
 template is_epoch*(slot: Slot): bool =
   slot.since_epoch_start == 0
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_start_slot_at_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_start_slot_at_epoch
 func start_slot*(epoch: Epoch): Slot = # aka compute_start_slot_at_epoch
   ## Return the start slot of ``epoch``.
   const maxEpoch = Epoch(FAR_FUTURE_SLOT div SLOTS_PER_EPOCH)
   if epoch >= maxEpoch: FAR_FUTURE_SLOT
   else: Slot(epoch * SLOTS_PER_EPOCH)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_previous_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_previous_epoch
 func get_previous_epoch*(current_epoch: Epoch): Epoch =
   ## Return the previous epoch (unless the current epoch is ``GENESIS_EPOCH``).
   if current_epoch == GENESIS_EPOCH:
@@ -217,7 +217,7 @@ iterator slots*(epoch: Epoch): Slot =
   for slot in start_slot ..< start_slot + SLOTS_PER_EPOCH:
     yield slot
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#sync-committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#sync-committee
 template sync_committee_period*(epoch: Epoch): SyncCommitteePeriod =
   if epoch == FAR_FUTURE_EPOCH: FAR_FUTURE_PERIOD
   else: SyncCommitteePeriod(epoch div EPOCHS_PER_SYNC_COMMITTEE_PERIOD)
diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 5ce6cfa9ef..54eb3bc6fa 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -23,7 +23,7 @@ from ./datatypes/capella import BeaconState, ExecutionPayloadHeader, Withdrawal
 
 export extras, forks, validator
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#increase_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#increase_balance
 func increase_balance*(balance: var Gwei, delta: Gwei) =
   balance += delta
 
@@ -33,7 +33,7 @@ func increase_balance*(
   if delta != 0: # avoid dirtying the balance cache if not needed
     increase_balance(state.balances.mitem(index), delta)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#decrease_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#decrease_balance
 func decrease_balance*(balance: var Gwei, delta: Gwei) =
   balance =
     if delta > balance:
@@ -48,8 +48,8 @@ func decrease_balance*(
   if delta != 0: # avoid dirtying the balance cache if not needed
     decrease_balance(state.balances.mitem(index), delta)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#deposits
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-process_deposit
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#deposits
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-process_deposit
 func get_validator_from_deposit*(deposit: DepositData):
     Validator =
   let
@@ -67,13 +67,13 @@ func get_validator_from_deposit*(deposit: DepositData):
     effective_balance: effective_balance
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_activation_exit_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_activation_exit_epoch
 func compute_activation_exit_epoch*(epoch: Epoch): Epoch =
   ## Return the epoch during which validator activations and exits initiated in
   ## ``epoch`` take effect.
   epoch + 1 + MAX_SEED_LOOKAHEAD
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_validator_churn_limit
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_validator_churn_limit
 func get_validator_churn_limit*(
       cfg: RuntimeConfig, state: ForkyBeaconState, cache: var StateCache):
     uint64 =
@@ -83,7 +83,7 @@ func get_validator_churn_limit*(
     count_active_validators(
       state, state.get_current_epoch(), cache) div cfg.CHURN_LIMIT_QUOTIENT)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#initiate_validator_exit
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#initiate_validator_exit
 func initiate_validator_exit*(
     cfg: RuntimeConfig, state: var ForkyBeaconState,
     index: ValidatorIndex, cache: var StateCache): Result[void, cstring] =
@@ -134,9 +134,9 @@ func initiate_validator_exit*(
 
 from ./datatypes/eip4844 import BeaconState
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#modified-slash_validator
 func get_slashing_penalty*(state: ForkyBeaconState,
                            validator_effective_balance: Gwei): Gwei =
   # TODO Consider whether this is better than splitting the functions apart; in
@@ -151,15 +151,15 @@ func get_slashing_penalty*(state: ForkyBeaconState,
   else:
     {.fatal: "invalid BeaconState type".}
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#modified-slash_validator
 func get_whistleblower_reward*(validator_effective_balance: Gwei): Gwei =
   validator_effective_balance div WHISTLEBLOWER_REWARD_QUOTIENT
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#modified-slash_validator
 func get_proposer_reward(state: ForkyBeaconState, whistleblower_reward: Gwei): Gwei =
   when state is phase0.BeaconState:
     whistleblower_reward div PROPOSER_REWARD_QUOTIENT
@@ -169,9 +169,9 @@ func get_proposer_reward(state: ForkyBeaconState, whistleblower_reward: Gwei): G
   else:
     {.fatal: "invalid BeaconState type".}
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#modified-slash_validator
 proc slash_validator*(
     cfg: RuntimeConfig, state: var ForkyBeaconState,
     slashed_index: ValidatorIndex, cache: var StateCache):
@@ -223,7 +223,7 @@ proc slash_validator*(
 func genesis_time_from_eth1_timestamp*(cfg: RuntimeConfig, eth1_timestamp: uint64): uint64 =
   eth1_timestamp + cfg.GENESIS_DELAY
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#genesis
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#genesis
 proc initialize_beacon_state_from_eth1*(
     cfg: RuntimeConfig,
     eth1_block_hash: Eth2Digest,
@@ -325,7 +325,7 @@ proc initialize_hashed_beacon_state_from_eth1*(
       cfg, eth1_block_hash, eth1_timestamp, deposits, flags))
   result.root = hash_tree_root(result.data)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#genesis-block
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#genesis-block
 func get_initial_beacon_block*(state: phase0.HashedBeaconState):
     phase0.TrustedSignedBeaconBlock =
   # The genesis block is implicitly trusted
@@ -337,7 +337,7 @@ func get_initial_beacon_block*(state: phase0.HashedBeaconState):
   phase0.TrustedSignedBeaconBlock(
     message: message, root: hash_tree_root(message))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#initialize-state-for-pure-altair-testnets-and-test-vectors
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#initialize-state-for-pure-altair-testnets-and-test-vectors
 func get_initial_beacon_block*(state: altair.HashedBeaconState):
     altair.TrustedSignedBeaconBlock =
   # The genesis block is implicitly trusted
@@ -389,7 +389,7 @@ func get_initial_beacon_block*(state: ForkedHashedBeaconState):
   withState(state):
     ForkedTrustedSignedBeaconBlock.init(get_initial_beacon_block(forkyState))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_block_root_at_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_block_root_at_slot
 func get_block_root_at_slot*(state: ForkyBeaconState, slot: Slot): Eth2Digest =
   ## Return the block root at a recent ``slot``.
 
@@ -407,7 +407,7 @@ func get_block_root_at_slot*(
   withState(state):
     get_block_root_at_slot(forkyState.data, slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_block_root
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_block_root
 func get_block_root*(state: ForkyBeaconState, epoch: Epoch): Eth2Digest =
   ## Return the block root at the start of a recent ``epoch``.
   get_block_root_at_slot(state, epoch.start_slot())
@@ -417,7 +417,7 @@ func get_block_root*(state: ForkedHashedBeaconState, epoch: Epoch): Eth2Digest =
   withState(state):
     get_block_root(forkyState.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_total_balance
 template get_total_balance(
     state: ForkyBeaconState, validator_indices: untyped): Gwei =
   ## Return the combined effective balance of the ``indices``.
@@ -428,13 +428,13 @@ template get_total_balance(
     res += state.validators[validator_index].effective_balance
   max(EFFECTIVE_BALANCE_INCREMENT, res)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_eligible_for_activation_queue
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_eligible_for_activation_queue
 func is_eligible_for_activation_queue*(validator: Validator): bool =
   ## Check if ``validator`` is eligible to be placed into the activation queue.
   validator.activation_eligibility_epoch == FAR_FUTURE_EPOCH and
     validator.effective_balance == MAX_EFFECTIVE_BALANCE
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_eligible_for_activation
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_eligible_for_activation
 func is_eligible_for_activation*(
     state: ForkyBeaconState, validator: Validator): bool =
   ## Check if ``validator`` is eligible for activation.
@@ -444,7 +444,7 @@ func is_eligible_for_activation*(
   # Has not yet been activated
     validator.activation_epoch == FAR_FUTURE_EPOCH
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
 proc is_valid_indexed_attestation*(
     state: ForkyBeaconState, indexed_attestation: SomeIndexedAttestation,
     flags: UpdateFlags): Result[void, cstring] =
@@ -482,7 +482,7 @@ proc is_valid_indexed_attestation*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_attesting_indices
 func get_attesting_indices*(state: ForkyBeaconState,
                             data: AttestationData,
                             bits: CommitteeValidatorsBits,
@@ -547,7 +547,7 @@ proc is_valid_indexed_attestation*(
 
 # Attestation validation
 # ------------------------------------------------------------------------------------------
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#attestations
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#attestations
 # https://github.com/ethereum/consensus-specs/blob/v1.2.0-rc.2/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 
 func check_attestation_slot_target*(data: AttestationData): Result[Slot, cstring] =
@@ -590,7 +590,7 @@ func check_attestation_index*(
     Result[CommitteeIndex, cstring] =
   check_attestation_index(data.index, committees_per_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_attestation_participation_flag_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_attestation_participation_flag_indices
 func get_attestation_participation_flag_indices(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState,
@@ -625,7 +625,7 @@ func get_attestation_participation_flag_indices(
 # TODO these duplicate some stuff in state_transition_epoch which uses TotalBalances
 # better to centralize around that if feasible
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_total_active_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_total_active_balance
 func get_total_active_balance*(state: ForkyBeaconState, cache: var StateCache): Gwei =
   ## Return the combined effective balance of the active validators.
   # Note: ``get_total_balance`` returns ``EFFECTIVE_BALANCE_INCREMENT`` Gwei
@@ -641,7 +641,7 @@ func get_total_active_balance*(state: ForkyBeaconState, cache: var StateCache):
     cache.total_active_balance[epoch] = tab
     return tab
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_base_reward_per_increment
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_base_reward_per_increment
 func get_base_reward_per_increment_sqrt*(
     total_active_balance_sqrt: uint64): Gwei =
   EFFECTIVE_BALANCE_INCREMENT * BASE_REWARD_FACTOR div total_active_balance_sqrt
@@ -650,7 +650,7 @@ func get_base_reward_per_increment*(
     total_active_balance: Gwei): Gwei =
   get_base_reward_per_increment_sqrt(integer_squareroot(total_active_balance))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_base_reward
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_base_reward
 func get_base_reward(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState,
@@ -661,7 +661,7 @@ func get_base_reward(
     state.validators[index].effective_balance div EFFECTIVE_BALANCE_INCREMENT
   increments * base_reward_per_increment
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#attestations
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#attestations
 proc check_attestation*(
     state: ForkyBeaconState, attestation: SomeAttestation, flags: UpdateFlags,
     cache: var StateCache): Result[void, cstring] =
@@ -775,7 +775,7 @@ proc process_attestation*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_next_sync_committee_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_next_sync_committee_indices
 func get_next_sync_committee_keys(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState):
@@ -872,7 +872,7 @@ func get_expected_withdrawals*(
     validator_index = (validator_index + 1) mod num_validators
   withdrawals
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_next_sync_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_next_sync_committee
 func get_next_sync_committee*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState):
@@ -891,7 +891,7 @@ func get_next_sync_committee*(
   res.aggregate_pubkey = finish(attestersAgg).toPubKey()
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/fork.md#upgrading-the-state
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/fork.md#upgrading-the-state
 func translate_participation(
     state: var altair.BeaconState,
     pending_attestations: openArray[phase0.PendingAttestation]) =
@@ -977,7 +977,7 @@ func upgrade_to_altair*(cfg: RuntimeConfig, pre: phase0.BeaconState):
 
   post
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/fork.md#upgrading-the-state
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/fork.md#upgrading-the-state
 func upgrade_to_bellatrix*(cfg: RuntimeConfig, pre: altair.BeaconState):
     ref bellatrix.BeaconState =
   let epoch = get_current_epoch(pre)
diff --git a/beacon_chain/spec/crypto.nim b/beacon_chain/spec/crypto.nim
index d7e3a29d3c..3cabc4cbcc 100644
--- a/beacon_chain/spec/crypto.nim
+++ b/beacon_chain/spec/crypto.nim
@@ -95,7 +95,7 @@ export
 
 # API
 # ----------------------------------------------------------------------
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#bls-signatures
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#bls-signatures
 
 func toPubKey*(privkey: ValidatorPrivKey): CookedPubKey =
   ## Derive a public key from a private key
@@ -203,7 +203,7 @@ func finish*(agg: AggregateSignature): CookedSig {.inline.} =
   sig.finish(agg)
   CookedSig(sig)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#bls-signatures
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#bls-signatures
 func blsVerify*(
     pubkey: CookedPubKey, message: openArray[byte],
     signature: CookedSig): bool =
@@ -216,7 +216,7 @@ func blsVerify*(
   ## to enforce correct usage.
   PublicKey(pubkey).verify(message, blscurve.Signature(signature))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#bls-signatures
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#bls-signatures
 proc blsVerify*(
     pubkey: ValidatorPubKey, message: openArray[byte],
     signature: CookedSig): bool =
diff --git a/beacon_chain/spec/datatypes/altair.nim b/beacon_chain/spec/datatypes/altair.nim
index 6a65cec4c7..314f8d13b5 100644
--- a/beacon_chain/spec/datatypes/altair.nim
+++ b/beacon_chain/spec/datatypes/altair.nim
@@ -27,7 +27,7 @@ from ssz_serialization/proofs import GeneralizedIndex
 export proofs.GeneralizedIndex
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#incentivization-weights
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#incentivization-weights
   TIMELY_SOURCE_WEIGHT* = 14
   TIMELY_TARGET_WEIGHT* = 26
   TIMELY_HEAD_WEIGHT* = 14
@@ -38,7 +38,7 @@ const
   PARTICIPATION_FLAG_WEIGHTS* =
     [TIMELY_SOURCE_WEIGHT, TIMELY_TARGET_WEIGHT, TIMELY_HEAD_WEIGHT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#misc
   TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE* = 16
   SYNC_COMMITTEE_SUBNET_COUNT* = 4
 
@@ -47,17 +47,17 @@ const
   # The first member (`genesis_time`) is 32, subsequent members +1 each.
   # If there are ever more than 32 members in `BeaconState`, indices change!
   # `FINALIZED_ROOT_INDEX` is one layer deeper, i.e., `52 * 2 + 1`.
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/ssz/merkle-proofs.md
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/ssz/merkle-proofs.md
   FINALIZED_ROOT_INDEX* = 105.GeneralizedIndex # `finalized_checkpoint` > `root`
   CURRENT_SYNC_COMMITTEE_INDEX* = 54.GeneralizedIndex # `current_sync_committee`
   NEXT_SYNC_COMMITTEE_INDEX* = 55.GeneralizedIndex # `next_sync_committee`
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#participation-flag-indices
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#participation-flag-indices
   TIMELY_SOURCE_FLAG_INDEX* = 0
   TIMELY_TARGET_FLAG_INDEX* = 1
   TIMELY_HEAD_FLAG_INDEX* = 2
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#inactivity-penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#inactivity-penalties
   INACTIVITY_SCORE_BIAS* = 4
   INACTIVITY_SCORE_RECOVERY_RATE* = 16
 
@@ -71,7 +71,7 @@ static: doAssert TIMELY_SOURCE_WEIGHT + TIMELY_TARGET_WEIGHT +
 type
   ### New types
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#custom-types
   ParticipationFlags* = uint8
 
   EpochParticipationFlags* =
@@ -80,7 +80,7 @@ type
     ## effectively making the cost of clearing the cache higher than the typical
     ## gains
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#syncaggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#syncaggregate
   SyncAggregate* = object
     sync_committee_bits*: BitArray[SYNC_COMMITTEE_SIZE]
     sync_committee_signature*: ValidatorSig
@@ -89,12 +89,12 @@ type
     sync_committee_bits*: BitArray[SYNC_COMMITTEE_SIZE]
     sync_committee_signature*: TrustedSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#synccommittee
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#synccommittee
   SyncCommittee* = object
     pubkeys*: HashArray[Limit SYNC_COMMITTEE_SIZE, ValidatorPubKey]
     aggregate_pubkey*: ValidatorPubKey
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#synccommitteemessage
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#synccommitteemessage
   SyncCommitteeMessage* = object
     slot*: Slot
       ## Slot to which this contribution pertains
@@ -108,7 +108,7 @@ type
     signature*: ValidatorSig
       ## Signature by the validator over the block root of `slot`
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#synccommitteecontribution
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#synccommitteecontribution
   SyncCommitteeAggregationBits* =
     BitArray[SYNC_SUBCOMMITTEE_SIZE]
 
@@ -130,18 +130,18 @@ type
     signature*: ValidatorSig
       ## Signature by the validator(s) over the block root of `slot`
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#contributionandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#contributionandproof
   ContributionAndProof* = object
     aggregator_index*: uint64 # `ValidatorIndex` after validation
     contribution*: SyncCommitteeContribution
     selection_proof*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#signedcontributionandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#signedcontributionandproof
   SignedContributionAndProof* = object
     message*: ContributionAndProof
     signature*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#syncaggregatorselectiondata
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#syncaggregatorselectiondata
   SyncAggregatorSelectionData* = object
     slot*: Slot
     subcommittee_index*: uint64 # `SyncSubcommitteeIndex` after validation
@@ -162,7 +162,7 @@ type
     beacon*: BeaconBlockHeader
       ## Beacon block header
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
   LightClientBootstrap* = object
     header*: LightClientHeader
       ## Header matching the requested beacon block root
@@ -189,7 +189,7 @@ type
     signature_slot*: Slot
       ## Slot at which the aggregate signature was created (untrusted)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
   LightClientFinalityUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -203,7 +203,7 @@ type
     # Slot at which the aggregate signature was created (untrusted)
     signature_slot*: Slot
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
   LightClientOptimisticUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -249,7 +249,7 @@ type
       ## safety threshold)
     current_max_active_participants*: uint64
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#beaconstate
   BeaconState* = object
     # Versioning
     genesis_time*: uint64
@@ -334,7 +334,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -391,7 +391,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -443,7 +443,7 @@ type
 
   SyncnetBits* = BitArray[SYNC_COMMITTEE_SUBNET_COUNT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/p2p-interface.md#metadata
   MetaData* = object
     seq_number*: uint64
     attnets*: AttnetBits
@@ -468,7 +468,7 @@ type
     # [New in Altair]
     sync_aggregate*: TrustedSyncAggregate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
@@ -698,7 +698,7 @@ chronicles.formatIt SyncCommitteeContribution: shortLog(it)
 chronicles.formatIt ContributionAndProof: shortLog(it)
 chronicles.formatIt SignedContributionAndProof: shortLog(it)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#is_valid_light_client_header
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#is_valid_light_client_header
 func is_valid_light_client_header*(
     header: LightClientHeader, cfg: RuntimeConfig): bool =
   true
diff --git a/beacon_chain/spec/datatypes/bellatrix.nim b/beacon_chain/spec/datatypes/bellatrix.nim
index d007838b71..2a575bda58 100644
--- a/beacon_chain/spec/datatypes/bellatrix.nim
+++ b/beacon_chain/spec/datatypes/bellatrix.nim
@@ -29,7 +29,7 @@ const
   FORKCHOICEUPDATED_TIMEOUT* = 8.seconds
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#custom-types
   Transaction* = List[byte, Limit MAX_BYTES_PER_TRANSACTION]
 
   ExecutionAddress* = object
@@ -40,7 +40,7 @@ type
 
   PayloadID* = array[8, byte]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#executionpayload
   ExecutionPayload* = object
     parent_hash*: Eth2Digest
     fee_recipient*: ExecutionAddress  # 'beneficiary' in the yellow paper
@@ -59,7 +59,7 @@ type
     block_hash*: Eth2Digest # Hash of execution block
     transactions*: List[Transaction, MAX_TRANSACTIONS_PER_PAYLOAD]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#executionpayloadheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#executionpayloadheader
   ExecutionPayloadHeader* = object
     parent_hash*: Eth2Digest
     fee_recipient*: ExecutionAddress
@@ -81,13 +81,13 @@ type
   ExecutePayload* = proc(
     execution_payload: ExecutionPayload): bool {.gcsafe, raises: [Defect].}
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/fork-choice.md#powblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/fork-choice.md#powblock
   PowBlock* = object
     block_hash*: Eth2Digest
     parent_hash*: Eth2Digest
     total_difficulty*: Eth2Digest   # uint256
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#beaconstate
   BeaconState* = object
     # Versioning
     genesis_time*: uint64
@@ -155,7 +155,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -212,7 +212,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -290,7 +290,7 @@ type
     # Execution
     execution_payload*: ExecutionPayload  # [New in Bellatrix]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/capella.nim b/beacon_chain/spec/datatypes/capella.nim
index c9a4029681..fbecf177c4 100644
--- a/beacon_chain/spec/datatypes/capella.nim
+++ b/beacon_chain/spec/datatypes/capella.nim
@@ -31,14 +31,14 @@ const
   # This index is rooted in `BeaconBlockBody`.
   # The first member (`randao_reveal`) is 16, subsequent members +1 each.
   # If there are ever more than 16 members in `BeaconBlockBody`, indices change!
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/ssz/merkle-proofs.md
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/ssz/merkle-proofs.md
   EXECUTION_PAYLOAD_INDEX* = 25.GeneralizedIndex # `execution_payload`
 
 type
   SignedBLSToExecutionChangeList* =
     List[SignedBLSToExecutionChange, Limit MAX_BLS_TO_EXECUTION_CHANGES]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#withdrawal
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#withdrawal
   Withdrawal* = object
     index*: WithdrawalIndex
     validator_index*: uint64
@@ -51,7 +51,7 @@ type
     from_bls_pubkey*: ValidatorPubKey
     to_execution_address*: ExecutionAddress
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#signedblstoexecutionchange
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#signedblstoexecutionchange
   SignedBLSToExecutionChange* = object
     message*: BLSToExecutionChange
     signature*: ValidatorSig
@@ -63,7 +63,7 @@ type
     block_summary_root*: Eth2Digest
     state_summary_root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#executionpayload
   ExecutionPayload* = object
     parent_hash*: Eth2Digest
     fee_recipient*: ExecutionAddress  # 'beneficiary' in the yellow paper
@@ -118,7 +118,7 @@ type
       ## Execution payload header corresponding to `beacon.body_root` (from Capella onward)
     execution_branch*: ExecutionBranch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
   LightClientBootstrap* = object
     header*: LightClientHeader
       ## Header matching the requested beacon block root
@@ -127,7 +127,7 @@ type
       ## Current sync committee corresponding to `header.beacon.state_root`
     current_sync_committee_branch*: altair.CurrentSyncCommitteeBranch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientupdate
   LightClientUpdate* = object
     attested_header*: LightClientHeader
       ## Header attested to by the sync committee
@@ -145,7 +145,7 @@ type
     signature_slot*: Slot
       ## Slot at which the aggregate signature was created (untrusted)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
   LightClientFinalityUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -159,7 +159,7 @@ type
     # Slot at which the aggregate signature was created (untrusted)
     signature_slot*: Slot
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
   LightClientOptimisticUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -185,7 +185,7 @@ type
     LightClientBootstrap |
     SomeLightClientUpdate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientstore
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientstore
   LightClientStore* = object
     finalized_header*: LightClientHeader
       ## Header that is finalized
@@ -283,7 +283,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -340,7 +340,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -424,7 +424,7 @@ type
     # Capella operations
     bls_to_execution_changes*: SignedBLSToExecutionChangeList  # [New in Capella]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/constants.nim b/beacon_chain/spec/datatypes/constants.nim
index 07ed6e73d0..d1baeef46e 100644
--- a/beacon_chain/spec/datatypes/constants.nim
+++ b/beacon_chain/spec/datatypes/constants.nim
@@ -21,7 +21,7 @@ const
   FAR_FUTURE_EPOCH* = Epoch(not 0'u64)
   FAR_FUTURE_PERIOD* = SyncCommitteePeriod(not 0'u64)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#domain-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#domain-types
   DOMAIN_BEACON_PROPOSER* = DomainType([byte 0x00, 0x00, 0x00, 0x00])
   DOMAIN_BEACON_ATTESTER* = DomainType([byte 0x01, 0x00, 0x00, 0x00])
   DOMAIN_RANDAO* = DomainType([byte 0x02, 0x00, 0x00, 0x00])
@@ -31,7 +31,7 @@ const
   DOMAIN_AGGREGATE_AND_PROOF* = DomainType([byte 0x06, 0x00, 0x00, 0x00])
   DOMAIN_APPLICATION_MASK* = DomainType([byte 0x00, 0x00, 0x00, 0x01])
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#domain-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#domain-types
   DOMAIN_SYNC_COMMITTEE* = DomainType([byte 0x07, 0x00, 0x00, 0x00])
   DOMAIN_SYNC_COMMITTEE_SELECTION_PROOF* = DomainType([byte 0x08, 0x00, 0x00, 0x00])
   DOMAIN_CONTRIBUTION_AND_PROOF* = DomainType([byte 0x09, 0x00, 0x00, 0x00])
@@ -39,11 +39,11 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/capella/beacon-chain.md#domain-types
   DOMAIN_BLS_TO_EXECUTION_CHANGE* = DomainType([byte 0x0a, 0x00, 0x00, 0x00])
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#transition-settings
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#transition-settings
   TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH* = FAR_FUTURE_EPOCH
 
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/fork-choice.md#configuration
   PROPOSER_SCORE_BOOST*: uint64 = 40
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#misc
   ATTESTATION_SUBNET_COUNT*: uint64 = 64
diff --git a/beacon_chain/spec/datatypes/eip4844.nim b/beacon_chain/spec/datatypes/eip4844.nim
index 3d65f5e7a7..77d93c5752 100644
--- a/beacon_chain/spec/datatypes/eip4844.nim
+++ b/beacon_chain/spec/datatypes/eip4844.nim
@@ -62,7 +62,7 @@ type
     beacon_block*: SignedBeaconBlock
     blobs_sidecar*: BlobsSidecar
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#executionpayload
   ExecutionPayload* = object
     parent_hash*: Eth2Digest
     fee_recipient*: ExecutionAddress  # 'beneficiary' in the yellow paper
@@ -83,7 +83,7 @@ type
     transactions*: List[Transaction, MAX_TRANSACTIONS_PER_PAYLOAD]
     withdrawals*: List[Withdrawal, MAX_WITHDRAWALS_PER_PAYLOAD]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#executionpayloadheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#executionpayloadheader
   ExecutionPayloadHeader* = object
     parent_hash*: Eth2Digest
     fee_recipient*: ExecutionAddress
@@ -116,7 +116,7 @@ type
       ## Execution payload header corresponding to `beacon.body_root` (from Capella onward)
     execution_branch*: capella.ExecutionBranch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
   LightClientBootstrap* = object
     header*: LightClientHeader
       ## Header matching the requested beacon block root
@@ -125,7 +125,7 @@ type
       ## Current sync committee corresponding to `header.beacon.state_root`
     current_sync_committee_branch*: altair.CurrentSyncCommitteeBranch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientupdate
   LightClientUpdate* = object
     attested_header*: LightClientHeader
       ## Header attested to by the sync committee
@@ -143,7 +143,7 @@ type
     signature_slot*: Slot
       ## Slot at which the aggregate signature was created (untrusted)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
   LightClientFinalityUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -157,7 +157,7 @@ type
     # Slot at which the aggregate signature was created (untrusted)
     signature_slot*: Slot
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
   LightClientOptimisticUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
@@ -183,7 +183,7 @@ type
     LightClientBootstrap |
     SomeLightClientUpdate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#lightclientstore
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#lightclientstore
   LightClientStore* = object
     finalized_header*: LightClientHeader
       ## Header that is finalized
@@ -280,7 +280,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -337,7 +337,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -418,7 +418,7 @@ type
     bls_to_execution_changes*: SignedBLSToExecutionChangeList
     blob_kzg_commitments*: List[KZGCommitment, Limit MAX_BLOBS_PER_BLOCK]  # [New in EIP-4844]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/phase0.nim b/beacon_chain/spec/datatypes/phase0.nim
index e0b981e679..5c9a2aa6ea 100644
--- a/beacon_chain/spec/datatypes/phase0.nim
+++ b/beacon_chain/spec/datatypes/phase0.nim
@@ -22,7 +22,7 @@ import
 export base
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconstate
   BeaconState* = object
     # Versioning
     genesis_time*: uint64
@@ -72,7 +72,7 @@ type
     current_justified_checkpoint*: Checkpoint
     finalized_checkpoint*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_total_balance
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_total_balance
   TotalBalances* = object
     # The total effective balance of all active validators during the _current_
     # epoch.
@@ -110,7 +110,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -129,7 +129,7 @@ type
 
     body*: BeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#metadata
   MetaData* = object
     seq_number*: uint64
     attnets*: AttnetBits
@@ -171,7 +171,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -220,7 +220,7 @@ type
     deposits*: List[Deposit, Limit MAX_DEPOSITS]
     voluntary_exits*: List[TrustedSignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/digest.nim b/beacon_chain/spec/digest.nim
index 413c740aa7..3fd84e8e9a 100644
--- a/beacon_chain/spec/digest.nim
+++ b/beacon_chain/spec/digest.nim
@@ -7,7 +7,7 @@
 
 # Serenity hash function / digest
 #
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#hash
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#hash
 #
 # In Phase 0 the beacon chain is deployed with SHA256 (SHA2-256).
 # Note that is is different from Keccak256 (often mistakenly called SHA3-256)
diff --git a/beacon_chain/spec/forks.nim b/beacon_chain/spec/forks.nim
index 8aa50a13fe..72342aa229 100644
--- a/beacon_chain/spec/forks.nim
+++ b/beacon_chain/spec/forks.nim
@@ -1004,7 +1004,7 @@ func readSszForkedSignedBeaconBlock*(
   withBlck(result):
     readSszBytes(data, blck)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_fork_data_root
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_fork_data_root
 func compute_fork_data_root*(current_version: Version,
     genesis_validators_root: Eth2Digest): Eth2Digest =
   ## Return the 32-byte fork data root for the ``current_version`` and
@@ -1016,7 +1016,7 @@ func compute_fork_data_root*(current_version: Version,
     genesis_validators_root: genesis_validators_root
   ))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_fork_digest
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_fork_digest
 func compute_fork_digest*(current_version: Version,
                           genesis_validators_root: Eth2Digest): ForkDigest =
   ## Return the 4-byte fork digest for the ``current_version`` and
diff --git a/beacon_chain/spec/forks_light_client.nim b/beacon_chain/spec/forks_light_client.nim
index 3bbb9f541c..55f1cf71ad 100644
--- a/beacon_chain/spec/forks_light_client.nim
+++ b/beacon_chain/spec/forks_light_client.nim
@@ -816,7 +816,7 @@ func migratingToDataFork*[
   upgradedObject.migrateToDataFork(newKind)
   upgradedObject
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/full-node.md#block_to_light_client_header
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/full-node.md#block_to_light_client_header
 func toAltairLightClientHeader(
     blck:  # `SomeSignedBeaconBlock` doesn't work here (Nim 1.6)
       phase0.SignedBeaconBlock | phase0.TrustedSignedBeaconBlock |
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index 3627f46ae1..067bacc403 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -40,7 +40,7 @@ func shortLog*(v: FinalityCheckpoints): auto =
 
 chronicles.formatIt FinalityCheckpoints: it.shortLog
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#integer_squareroot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#integer_squareroot
 func integer_squareroot*(n: SomeInteger): SomeInteger =
   ## Return the largest integer ``x`` such that ``x**2 <= n``.
   doAssert n >= 0'u64
@@ -53,7 +53,7 @@ func integer_squareroot*(n: SomeInteger): SomeInteger =
     y = (x + n div x) div 2
   x
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_active_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_active_validator
 func is_active_validator*(validator: Validator, epoch: Epoch): bool =
   ## Check if ``validator`` is active
   validator.activation_epoch <= epoch and epoch < validator.exit_epoch
@@ -65,7 +65,7 @@ func is_exited_validator*(validator: Validator, epoch: Epoch): bool =
 func is_withdrawable_validator*(validator: Validator, epoch: Epoch): bool =
   epoch >= validator.withdrawable_epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_active_validator_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_active_validator_indices
 iterator get_active_validator_indices*(state: ForkyBeaconState, epoch: Epoch):
     ValidatorIndex =
   for vidx in state.validators.vindices:
@@ -91,23 +91,23 @@ func get_active_validator_indices_len*(
   withState(state):
     get_active_validator_indices_len(forkyState.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_current_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_current_epoch
 func get_current_epoch*(state: ForkyBeaconState): Epoch =
   ## Return the current epoch.
   state.slot.epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_current_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_current_epoch
 func get_current_epoch*(state: ForkedHashedBeaconState): Epoch =
   ## Return the current epoch.
   withState(state): get_current_epoch(forkyState.data)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_previous_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_previous_epoch
 func get_previous_epoch*(
     state: ForkyBeaconState | ForkedHashedBeaconState): Epoch =
   ## Return the previous epoch (unless the current epoch is ``GENESIS_EPOCH``).
   get_previous_epoch(get_current_epoch(state))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_randao_mix
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_randao_mix
 func get_randao_mix*(state: ForkyBeaconState, epoch: Epoch): Eth2Digest =
   ## Returns the randao mix at a recent ``epoch``.
   state.randao_mixes[epoch mod EPOCHS_PER_HISTORICAL_VECTOR]
@@ -129,7 +129,7 @@ func uint_to_bytes*(x: uint32): array[4, byte] = toBytesLE(x)
 func uint_to_bytes*(x: uint16): array[2, byte] = toBytesLE(x)
 func uint_to_bytes*(x: uint8): array[1, byte] = toBytesLE(x)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_domain
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_domain
 func compute_domain*(
     domain_type: DomainType,
     fork_version: Version,
@@ -143,7 +143,7 @@ func compute_domain*(
   result[0..3] = domain_type.data
   result[4..31] = fork_data_root.data.toOpenArray(0, 27)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_domain
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_domain
 func get_domain*(
     fork: Fork,
     domain_type: DomainType,
@@ -164,7 +164,7 @@ func get_domain*(
   ## of a message.
   get_domain(state.fork, domain_type, epoch, state.genesis_validators_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_signing_root
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_signing_root
 func compute_signing_root*(ssz_object: auto, domain: Eth2Domain): Eth2Digest =
   ## Return the signing root of an object by calculating the root of the
   ## object-domain tree.
@@ -174,7 +174,7 @@ func compute_signing_root*(ssz_object: auto, domain: Eth2Domain): Eth2Digest =
   )
   hash_tree_root(domain_wrapped_object)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_seed
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_seed
 func get_seed*(state: ForkyBeaconState, epoch: Epoch, domain_type: DomainType):
     Eth2Digest =
   ## Return the seed at ``epoch``.
@@ -192,12 +192,12 @@ func get_seed*(state: ForkyBeaconState, epoch: Epoch, domain_type: DomainType):
       epoch + EPOCHS_PER_HISTORICAL_VECTOR - MIN_SEED_LOOKAHEAD - 1).data
   eth2digest(seed_input)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#add_flag
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#add_flag
 func add_flag*(flags: ParticipationFlags, flag_index: int): ParticipationFlags =
   let flag = ParticipationFlags(1'u8 shl flag_index)
   flags or flag
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#has_flag
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#has_flag
 func has_flag*(flags: ParticipationFlags, flag_index: int): bool =
   let flag = ParticipationFlags(1'u8 shl flag_index)
   (flags and flag) == flag
@@ -210,7 +210,7 @@ template is_sync_committee_update*(update: SomeForkyLightClientUpdate): bool =
   else:
     false
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/sync-protocol.md#is_finality_update
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/sync-protocol.md#is_finality_update
 template is_finality_update*(update: SomeForkyLightClientUpdate): bool =
   when update is SomeForkyLightClientUpdateWithFinality:
     update.finality_branch != default(typeof(update.finality_branch))
@@ -324,19 +324,19 @@ func contextEpoch*(bootstrap: ForkyLightClientBootstrap): Epoch =
   bootstrap.header.beacon.slot.epoch
 
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#lightclientupdatesbyrange
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#getlightclientoptimisticupdate
 func contextEpoch*(update: SomeForkyLightClientUpdate): Epoch =
   update.attested_header.beacon.slot.epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#is_merge_transition_complete
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#is_merge_transition_complete
 func is_merge_transition_complete*(
     state: bellatrix.BeaconState | capella.BeaconState | eip4844.BeaconState): bool =
   const defaultExecutionPayloadHeader =
     default(typeof(state.latest_execution_payload_header))
   state.latest_execution_payload_header != defaultExecutionPayloadHeader
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/sync/optimistic.md#helpers
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/sync/optimistic.md#helpers
 func is_execution_block*(blck: SomeForkyBeaconBlock): bool =
   when typeof(blck).toFork >= ConsensusFork.Bellatrix:
     const defaultExecutionPayload =
@@ -345,7 +345,7 @@ func is_execution_block*(blck: SomeForkyBeaconBlock): bool =
   else:
     false
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#is_merge_transition_block
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#is_merge_transition_block
 func is_merge_transition_block(
     state: bellatrix.BeaconState | capella.BeaconState | eip4844.BeaconState,
     body: bellatrix.BeaconBlockBody | bellatrix.TrustedBeaconBlockBody |
@@ -358,7 +358,7 @@ func is_merge_transition_block(
   not is_merge_transition_complete(state) and
     body.execution_payload != defaultExecutionPayload
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#is_execution_enabled
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#is_execution_enabled
 func is_execution_enabled*(
     state: bellatrix.BeaconState | capella.BeaconState | eip4844.BeaconState,
     body: bellatrix.BeaconBlockBody | bellatrix.TrustedBeaconBlockBody |
@@ -369,7 +369,7 @@ func is_execution_enabled*(
           eip4844.SigVerifiedBeaconBlockBody): bool =
   is_merge_transition_block(state, body) or is_merge_transition_complete(state)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#compute_timestamp_at_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#compute_timestamp_at_slot
 func compute_timestamp_at_slot*(state: ForkyBeaconState, slot: Slot): uint64 =
   # Note: This function is unsafe with respect to overflows and underflows.
   let slots_since_genesis = slot - GENESIS_SLOT
diff --git a/beacon_chain/spec/keystore.nim b/beacon_chain/spec/keystore.nim
index ecc866165c..bba0390978 100644
--- a/beacon_chain/spec/keystore.nim
+++ b/beacon_chain/spec/keystore.nim
@@ -999,7 +999,7 @@ proc createWallet*(kdfKind: KdfKind,
     crypto: crypto,
     nextAccount: nextAccount.get(0))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#bls_withdrawal_prefix
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#bls_withdrawal_prefix
 func makeWithdrawalCredentials*(k: ValidatorPubKey): Eth2Digest =
   var bytes = eth2digest(k.toRaw())
   bytes.data[0] = BLS_WITHDRAWAL_PREFIX.uint8
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index 4f80848bce..eb63e3a6f2 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -14,8 +14,8 @@ import
 export base
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#topics-and-messages
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/p2p-interface.md#topics-and-messages
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/p2p-interface.md#topics-and-messages
   topicBeaconBlocksSuffix* = "beacon_block/ssz_snappy"
   topicVoluntaryExitsSuffix* = "voluntary_exit/ssz_snappy"
@@ -25,10 +25,10 @@ const
   topicBlsToExecutionChangeSuffix* = "bls_to_execution_change/ssz_snappy"
   topicBeaconBlockAndBlobsSidecarTopicSuffix* = "beacon_block_and_blobs_sidecar/ssz_snappy"
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#configuration
   RESP_TIMEOUT* = 10.seconds
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/p2p-interface.md#configuration
   GOSSIP_MAX_SIZE_BELLATRIX* = 10 * 1024 * 1024 # bytes
   MAX_CHUNK_SIZE_BELLATRIX* = 10 * 1024 * 1024 # bytes
 
@@ -69,7 +69,7 @@ func getBlsToExecutionChangeTopic*(forkDigest: ForkDigest): string =
 func getBeaconBlockAndBlobsSidecarTopic*(forkDigest: ForkDigest): string =
   eth2Prefix(forkDigest) & topicBeaconBlockAndBlobsSidecarTopicSuffix
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#broadcast-attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#broadcast-attestation
 func compute_subnet_for_attestation*(
     committees_per_slot: uint64, slot: Slot, committee_index: CommitteeIndex):
     SubnetId =
@@ -85,19 +85,19 @@ func compute_subnet_for_attestation*(
     (committees_since_epoch_start + committee_index.asUInt64) mod
     ATTESTATION_SUBNET_COUNT)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#broadcast-attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#broadcast-attestation
 func getAttestationTopic*(forkDigest: ForkDigest,
                           subnetId: SubnetId): string =
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "beacon_attestation_" & $(subnetId) & "/ssz_snappy"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/p2p-interface.md#topics-and-messages
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/p2p-interface.md#topics-and-messages
 func getSyncCommitteeTopic*(forkDigest: ForkDigest,
                             subcommitteeIdx: SyncSubcommitteeIndex): string =
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "sync_committee_" & $subcommitteeIdx & "/ssz_snappy"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/p2p-interface.md#topics-and-messages
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/p2p-interface.md#topics-and-messages
 func getSyncCommitteeContributionAndProofTopic*(forkDigest: ForkDigest): string =
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "sync_committee_contribution_and_proof/ssz_snappy"
@@ -144,7 +144,7 @@ func getDiscoveryForkID*(cfg: RuntimeConfig,
       next_fork_version: current_fork_version,
       next_fork_epoch: FAR_FUTURE_EPOCH)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/p2p-interface.md#transitioning-the-gossip
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/p2p-interface.md#transitioning-the-gossip
 type GossipState* = set[ConsensusFork]
 func getTargetGossipState*(
     epoch, ALTAIR_FORK_EPOCH, BELLATRIX_FORK_EPOCH, CAPELLA_FORK_EPOCH,
@@ -186,7 +186,7 @@ func getTargetGossipState*(
   targetForks
 
 func nearSyncCommitteePeriod*(epoch: Epoch): Opt[uint64] =
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#sync-committee-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#sync-committee-subnet-stability
   if epoch.is_sync_committee_period():
     return Opt.some 0'u64
   let epochsBefore =
@@ -205,7 +205,7 @@ func getSyncSubnets*(
     if not nodeHasPubkey(pubkey):
       continue
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#broadcast-sync-committee-message
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#broadcast-sync-committee-message
     # The first quarter of the pubkeys map to subnet 0, the second quarter to
     # subnet 1, the third quarter to subnet 2 and the final quarter to subnet
     # 3.
diff --git a/beacon_chain/spec/presets.nim b/beacon_chain/spec/presets.nim
index 6f05190879..9d84f99932 100644
--- a/beacon_chain/spec/presets.nim
+++ b/beacon_chain/spec/presets.nim
@@ -17,7 +17,7 @@ export constants
 export stint, ethtypes.toHex, ethtypes.`==`
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#withdrawal-prefixes
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#withdrawal-prefixes
   BLS_WITHDRAWAL_PREFIX*: byte = 0
   ETH1_ADDRESS_WITHDRAWAL_PREFIX*: byte = 1
 
@@ -622,7 +622,7 @@ template name*(cfg: RuntimeConfig): string =
   else:
     const_preset
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#configuration
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#configuration
 func MIN_EPOCHS_FOR_BLOCK_REQUESTS*(cfg: RuntimeConfig): uint64 =
   cfg.MIN_VALIDATOR_WITHDRAWABILITY_DELAY + cfg.CHURN_LIMIT_QUOTIENT div 2
 
diff --git a/beacon_chain/spec/presets/gnosis/altair_preset.nim b/beacon_chain/spec/presets/gnosis/altair_preset.nim
index 487a2845f2..35b2c2d4eb 100644
--- a/beacon_chain/spec/presets/gnosis/altair_preset.nim
+++ b/beacon_chain/spec/presets/gnosis/altair_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Altair
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/altair.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/altair.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/gnosis/eip4844_preset.nim b/beacon_chain/spec/presets/gnosis/eip4844_preset.nim
index 7d2f402bee..7444a23e2a 100644
--- a/beacon_chain/spec/presets/gnosis/eip4844_preset.nim
+++ b/beacon_chain/spec/presets/gnosis/eip4844_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - EIP-4844
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/eip4844.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/eip4844.yaml
 const
   # `uint64(4096)`
   FIELD_ELEMENTS_PER_BLOB*: uint64 = 4096
diff --git a/beacon_chain/spec/presets/gnosis/phase0_preset.nim b/beacon_chain/spec/presets/gnosis/phase0_preset.nim
index c5fb7937d5..d5bf95546c 100644
--- a/beacon_chain/spec/presets/gnosis/phase0_preset.nim
+++ b/beacon_chain/spec/presets/gnosis/phase0_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Phase0
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/phase0.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/phase0.yaml
 
 const
   #
diff --git a/beacon_chain/spec/presets/mainnet/altair_preset.nim b/beacon_chain/spec/presets/mainnet/altair_preset.nim
index 5bb0b59681..d7bcbbbb19 100644
--- a/beacon_chain/spec/presets/mainnet/altair_preset.nim
+++ b/beacon_chain/spec/presets/mainnet/altair_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Altair
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/altair.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/altair.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/mainnet/bellatrix_preset.nim b/beacon_chain/spec/presets/mainnet/bellatrix_preset.nim
index 85ab870797..ee41208a19 100644
--- a/beacon_chain/spec/presets/mainnet/bellatrix_preset.nim
+++ b/beacon_chain/spec/presets/mainnet/bellatrix_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Bellatrix
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/bellatrix.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/bellatrix.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/mainnet/capella_preset.nim b/beacon_chain/spec/presets/mainnet/capella_preset.nim
index eb3aaa6fe7..62d27cd394 100644
--- a/beacon_chain/spec/presets/mainnet/capella_preset.nim
+++ b/beacon_chain/spec/presets/mainnet/capella_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Capella
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/capella.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/capella.yaml
 const
   # Max operations per block
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/mainnet/eip4844_preset.nim b/beacon_chain/spec/presets/mainnet/eip4844_preset.nim
index 7d2f402bee..7444a23e2a 100644
--- a/beacon_chain/spec/presets/mainnet/eip4844_preset.nim
+++ b/beacon_chain/spec/presets/mainnet/eip4844_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - EIP-4844
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/eip4844.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/eip4844.yaml
 const
   # `uint64(4096)`
   FIELD_ELEMENTS_PER_BLOB*: uint64 = 4096
diff --git a/beacon_chain/spec/presets/mainnet/phase0_preset.nim b/beacon_chain/spec/presets/mainnet/phase0_preset.nim
index 0815434f9a..df575f27bc 100644
--- a/beacon_chain/spec/presets/mainnet/phase0_preset.nim
+++ b/beacon_chain/spec/presets/mainnet/phase0_preset.nim
@@ -1,5 +1,5 @@
 # Mainnet preset - Phase0
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/mainnet/phase0.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/mainnet/phase0.yaml
 
 const
   #
diff --git a/beacon_chain/spec/presets/minimal/altair_preset.nim b/beacon_chain/spec/presets/minimal/altair_preset.nim
index 6bbf8d3b67..0cafff5988 100644
--- a/beacon_chain/spec/presets/minimal/altair_preset.nim
+++ b/beacon_chain/spec/presets/minimal/altair_preset.nim
@@ -1,5 +1,5 @@
 # Minimal preset - Altair
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/minimal/altair.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/minimal/altair.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/minimal/bellatrix_preset.nim b/beacon_chain/spec/presets/minimal/bellatrix_preset.nim
index c2286de188..8f12a1f900 100644
--- a/beacon_chain/spec/presets/minimal/bellatrix_preset.nim
+++ b/beacon_chain/spec/presets/minimal/bellatrix_preset.nim
@@ -1,5 +1,5 @@
 # Minimal preset - Bellatrix
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/minimal/bellatrix.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/minimal/bellatrix.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/minimal/capella_preset.nim b/beacon_chain/spec/presets/minimal/capella_preset.nim
index 029840464d..0524d73a14 100644
--- a/beacon_chain/spec/presets/minimal/capella_preset.nim
+++ b/beacon_chain/spec/presets/minimal/capella_preset.nim
@@ -1,5 +1,5 @@
 # Minimal preset - Capella
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/minimal/capella.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/minimal/capella.yaml
 const
   # Max operations per block
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/presets/minimal/eip4844_preset.nim b/beacon_chain/spec/presets/minimal/eip4844_preset.nim
index f9da897cde..6346576445 100644
--- a/beacon_chain/spec/presets/minimal/eip4844_preset.nim
+++ b/beacon_chain/spec/presets/minimal/eip4844_preset.nim
@@ -1,5 +1,5 @@
 # Minimal preset - EIP-4844
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/minimal/eip4844.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/minimal/eip4844.yaml
 const
   # [customized]
   FIELD_ELEMENTS_PER_BLOB*: uint64 = 4
diff --git a/beacon_chain/spec/presets/minimal/phase0_preset.nim b/beacon_chain/spec/presets/minimal/phase0_preset.nim
index 33a3021c1f..c0c45aee76 100644
--- a/beacon_chain/spec/presets/minimal/phase0_preset.nim
+++ b/beacon_chain/spec/presets/minimal/phase0_preset.nim
@@ -1,5 +1,5 @@
 # Minimal preset - Phase0
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/presets/minimal/phase0.yaml
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/presets/minimal/phase0.yaml
 
 const
   #
diff --git a/beacon_chain/spec/signatures.nim b/beacon_chain/spec/signatures.nim
index 5db09943d8..fb2dde7964 100644
--- a/beacon_chain/spec/signatures.nim
+++ b/beacon_chain/spec/signatures.nim
@@ -45,7 +45,7 @@ func compute_slot_signing_root*(
       fork, DOMAIN_SELECTION_PROOF, epoch, genesis_validators_root)
   compute_signing_root(slot, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#aggregation-selection
 func get_slot_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, slot: Slot,
     privkey: ValidatorPrivKey): CookedSig =
@@ -69,7 +69,7 @@ func compute_epoch_signing_root*(
   let domain = get_domain(fork, DOMAIN_RANDAO, epoch, genesis_validators_root)
   compute_signing_root(epoch, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#randao-reveal
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#randao-reveal
 func get_epoch_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, epoch: Epoch,
     privkey: ValidatorPrivKey): CookedSig =
@@ -98,7 +98,7 @@ func compute_block_signing_root*(
       fork, DOMAIN_BEACON_PROPOSER, epoch, genesis_validators_root)
   compute_signing_root(blck, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#signature
 func get_block_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, slot: Slot,
     root: Eth2Digest, privkey: ValidatorPrivKey): CookedSig =
@@ -127,7 +127,7 @@ func compute_aggregate_and_proof_signing_root*(
       fork, DOMAIN_AGGREGATE_AND_PROOF, epoch, genesis_validators_root)
   compute_signing_root(aggregate_and_proof, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#broadcast-aggregate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#broadcast-aggregate
 func get_aggregate_and_proof_signature*(fork: Fork, genesis_validators_root: Eth2Digest,
                                         aggregate_and_proof: AggregateAndProof,
                                         privkey: ValidatorPrivKey): CookedSig =
@@ -155,7 +155,7 @@ func compute_attestation_signing_root*(
       fork, DOMAIN_BEACON_ATTESTER, epoch, genesis_validators_root)
   compute_signing_root(attestation_data, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#aggregate-signature
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#aggregate-signature
 func get_attestation_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     attestation_data: AttestationData,
@@ -183,7 +183,7 @@ func compute_deposit_signing_root*(
     domain = compute_domain(DOMAIN_DEPOSIT, version)
   compute_signing_root(deposit_message, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#deposits
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#deposits
 func get_deposit_signature*(preset: RuntimeConfig,
                             deposit: DepositData,
                             privkey: ValidatorPrivKey): CookedSig =
@@ -245,7 +245,7 @@ proc verify_voluntary_exit_signature*(
 
     blsVerify(pubkey, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#prepare-sync-committee-message
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#prepare-sync-committee-message
 func compute_sync_committee_message_signing_root*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     slot: Slot, beacon_block_root: Eth2Digest): Eth2Digest =
@@ -280,7 +280,7 @@ proc verify_sync_committee_signature*(
 
   blsFastAggregateVerify(pubkeys, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#aggregation-selection
 func compute_sync_committee_selection_proof_signing_root*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     slot: Slot, subcommittee_index: SyncSubcommitteeIndex): Eth2Digest =
@@ -311,7 +311,7 @@ proc verify_sync_committee_selection_proof*(
 
     blsVerify(pubkey, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#signature
 func compute_contribution_and_proof_signing_root*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     msg: ContributionAndProof): Eth2Digest =
@@ -329,7 +329,7 @@ proc get_contribution_and_proof_signature*(
 
   blsSign(privkey, signing_root.data)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#aggregation-selection
 func is_sync_committee_aggregator*(signature: ValidatorSig): bool =
   let
     signatureDigest = eth2digest(signature.blob)
@@ -367,7 +367,7 @@ proc verify_builder_signature*(
   let signing_root = compute_builder_signing_root(fork, msg)
   blsVerify(pubkey, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#new-process_bls_to_execution_change
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#new-process_bls_to_execution_change
 func compute_bls_to_execution_change_signing_root(
     genesisFork: Fork, genesis_validators_root: Eth2Digest,
     epoch: Epoch, msg: BLSToExecutionChange): Eth2Digest =
diff --git a/beacon_chain/spec/signatures_batch.nim b/beacon_chain/spec/signatures_batch.nim
index 6df900dac0..6d04d5849c 100644
--- a/beacon_chain/spec/signatures_batch.nim
+++ b/beacon_chain/spec/signatures_batch.nim
@@ -65,7 +65,7 @@ proc aggregateAttesters(
     # Aggregation spec requires non-empty collection
     # - https://tools.ietf.org/html/draft-irtf-cfrg-bls-signature-04
     # Eth2 spec requires at least one attesting index in attestation
-    # - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+    # - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
     return err("aggregateAttesters: no attesting indices")
 
   let
@@ -91,7 +91,7 @@ proc aggregateAttesters(
     # Aggregation spec requires non-empty collection
     # - https://tools.ietf.org/html/draft-irtf-cfrg-bls-signature-04
     # Eth2 spec requires at least one attesting index in attestation
-    # - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+    # - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
     return err("aggregateAttesters: no attesting indices")
 
   var attestersAgg{.noinit.}: AggregatePublicKey
diff --git a/beacon_chain/spec/state_transition.nim b/beacon_chain/spec/state_transition.nim
index 817b5fedc6..84af084bca 100644
--- a/beacon_chain/spec/state_transition.nim
+++ b/beacon_chain/spec/state_transition.nim
@@ -6,7 +6,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 #
 # The entry point is `state_transition` which is at the bottom of the file!
 #
@@ -51,7 +51,7 @@ import
 
 export results, extras, phase0, altair, bellatrix
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc verify_block_signature(
     state: ForkyBeaconState, signed_block: SomeForkySignedBeaconBlock):
     Result[void, cstring] =
@@ -68,7 +68,7 @@ proc verify_block_signature(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 func verifyStateRoot(
     state: ForkyBeaconState, blck: ForkyBeaconBlock | ForkySigVerifiedBeaconBlock):
     Result[void, cstring] =
@@ -97,7 +97,7 @@ func noRollback*() =
 # Hashed-state transition functions
 # ---------------------------------------------------------------
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 func process_slot*(
     state: var ForkyBeaconState, pre_state_root: Eth2Digest) =
   # `process_slot` is the first stage of per-slot processing - it is run for
@@ -123,7 +123,7 @@ func clear_epoch_from_cache(cache: var StateCache, epoch: Epoch) =
   for slot in epoch.slots():
     cache.beacon_proposer_indices.del slot
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc advance_slot(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState, previous_slot_state_root: Eth2Digest,
@@ -331,7 +331,7 @@ proc state_transition*(
   state_transition_block(
     cfg, state, signedBlock, cache, flags, rollback)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#preparing-for-a-beaconblock
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#preparing-for-a-beaconblock
 template partialBeaconBlock*(
     cfg: RuntimeConfig,
     state: var phase0.HashedBeaconState,
@@ -360,7 +360,7 @@ template partialBeaconBlock*(
       deposits: List[Deposit, Limit MAX_DEPOSITS](deposits),
       voluntary_exits: validator_changes.voluntary_exits))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/validator.md#preparing-a-beaconblock
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/validator.md#preparing-a-beaconblock
 template partialBeaconBlock*(
     cfg: RuntimeConfig,
     state: var altair.HashedBeaconState,
@@ -543,7 +543,7 @@ proc makeBeaconBlock*[T: bellatrix.ExecutionPayload | capella.ExecutionPayload |
           forkyState.data.latest_execution_payload_header.transactions_root =
             transactions_root.get
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#beaconblockbody
+          # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#beaconblockbody
           # Effectively hash_tree_root(ExecutionPayload) with the beacon block
           # body, with the execution payload replaced by the execution payload
           # header. htr(payload) == htr(payload header), so substitute.
diff --git a/beacon_chain/spec/state_transition_block.nim b/beacon_chain/spec/state_transition_block.nim
index 5424541c93..c247027a5d 100644
--- a/beacon_chain/spec/state_transition_block.nim
+++ b/beacon_chain/spec/state_transition_block.nim
@@ -6,7 +6,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition - block processing, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#block-processing
 #
 # The entry point is `process_block` which is at the bottom of this file.
 #
@@ -33,7 +33,7 @@ from ./datatypes/capella import
 
 export extras, phase0, altair
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#block-header
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#block-header
 func process_block_header*(
     state: var ForkyBeaconState, blck: SomeForkyBeaconBlock, flags: UpdateFlags,
     cache: var StateCache): Result[void, cstring] =
@@ -75,7 +75,7 @@ func `xor`[T: array](a, b: T): T =
   for i in 0..<result.len:
     result[i] = a[i] xor b[i]
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#randao
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#randao
 proc process_randao(
     state: var ForkyBeaconState, body: SomeForkyBeaconBlockBody, flags: UpdateFlags,
     cache: var StateCache): Result[void, cstring] =
@@ -108,7 +108,7 @@ proc process_randao(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#eth1-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#eth1-data
 func process_eth1_data(state: var ForkyBeaconState, body: SomeForkyBeaconBlockBody): Result[void, cstring]=
   if not state.eth1_data_votes.add body.eth1_data:
     # Count is reset  in process_final_updates, so this should never happen
@@ -119,14 +119,14 @@ func process_eth1_data(state: var ForkyBeaconState, body: SomeForkyBeaconBlockBo
     state.eth1_data = body.eth1_data
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_slashable_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_slashable_validator
 func is_slashable_validator(validator: Validator, epoch: Epoch): bool =
   # Check if ``validator`` is slashable.
   (not validator.slashed) and
     (validator.activation_epoch <= epoch) and
     (epoch < validator.withdrawable_epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#proposer-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#proposer-slashings
 proc check_proposer_slashing*(
     state: ForkyBeaconState, proposer_slashing: SomeProposerSlashing,
     flags: UpdateFlags):
@@ -175,7 +175,7 @@ proc check_proposer_slashing*(
   withState(state):
     check_proposer_slashing(forkyState.data, proposer_slashing, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#proposer-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#proposer-slashings
 proc process_proposer_slashing*(
     cfg: RuntimeConfig, state: var ForkyBeaconState,
     proposer_slashing: SomeProposerSlashing, flags: UpdateFlags,
@@ -185,7 +185,7 @@ proc process_proposer_slashing*(
   ? slash_validator(cfg, state, proposer_index, cache)
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#is_slashable_attestation_data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#is_slashable_attestation_data
 func is_slashable_attestation_data(
     data_1: AttestationData, data_2: AttestationData): bool =
   ## Check if ``data_1`` and ``data_2`` are slashable according to Casper FFG
@@ -197,7 +197,7 @@ func is_slashable_attestation_data(
     (data_1.source.epoch < data_2.source.epoch and
      data_2.target.epoch < data_1.target.epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#attester-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#attester-slashings
 proc check_attester_slashing*(
        state: ForkyBeaconState,
        attester_slashing: SomeAttesterSlashing,
@@ -239,7 +239,7 @@ proc check_attester_slashing*(
   withState(state):
     check_attester_slashing(forkyState.data, attester_slashing, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#attester-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#attester-slashings
 proc process_attester_slashing*(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState,
@@ -326,7 +326,7 @@ proc process_deposit*(cfg: RuntimeConfig,
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#voluntary-exits
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#voluntary-exits
 proc check_voluntary_exit*(
     cfg: RuntimeConfig,
     state: ForkyBeaconState,
@@ -375,7 +375,7 @@ proc check_voluntary_exit*(
   withState(state):
     check_voluntary_exit(cfg, forkyState.data, signed_voluntary_exit, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#voluntary-exits
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#voluntary-exits
 proc process_voluntary_exit*(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState,
@@ -431,7 +431,7 @@ proc process_bls_to_execution_change*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#operations
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#operations
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/specs/capella/beacon-chain.md#modified-process_operations
 proc process_operations(cfg: RuntimeConfig,
                         state: var ForkyBeaconState,
@@ -466,7 +466,7 @@ proc process_operations(cfg: RuntimeConfig,
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#sync-committee-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#sync-committee-processing
 func get_participant_reward*(total_active_balance: Gwei): Gwei =
   let
     total_active_increments =
@@ -481,7 +481,7 @@ func get_participant_reward*(total_active_balance: Gwei): Gwei =
 func get_proposer_reward*(participant_reward: Gwei): Gwei =
   participant_reward * PROPOSER_WEIGHT div (WEIGHT_DENOMINATOR - PROPOSER_WEIGHT)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#sync-committee-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#sync-committee-processing
 proc process_sync_aggregate*(
     state: var (altair.BeaconState | bellatrix.BeaconState |
                 capella.BeaconState | eip4844.BeaconState),
@@ -536,7 +536,7 @@ proc process_sync_aggregate*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#process_execution_payload
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#process_execution_payload
 proc process_execution_payload*(
     state: var bellatrix.BeaconState, payload: bellatrix.ExecutionPayload,
     notify_new_payload: bellatrix.ExecutePayload): Result[void, cstring] =
@@ -621,7 +621,7 @@ proc process_execution_payload*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#process_execution_payload
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#process_execution_payload
 proc process_execution_payload*(
     state: var eip4844.BeaconState, payload: eip4844.ExecutionPayload,
     notify_new_payload: eip4844.ExecutePayload): Result[void, cstring] =
@@ -707,7 +707,7 @@ func process_withdrawals*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#tx_peek_blob_versioned_hashes
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#tx_peek_blob_versioned_hashes
 func tx_peek_blob_versioned_hashes(opaque_tx: Transaction):
     Result[seq[VersionedHash], cstring] =
   ## This function retrieves the hashes from the `SignedBlobTransaction` as
@@ -736,7 +736,7 @@ func tx_peek_blob_versioned_hashes(opaque_tx: Transaction):
     res.add versionedHash
   ok res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#kzg_commitment_to_versioned_hash
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#kzg_commitment_to_versioned_hash
 func kzg_commitment_to_versioned_hash(
     kzg_commitment: eip4844.KZGCommitment): VersionedHash =
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/eip4844/beacon-chain.md#blob
@@ -764,7 +764,7 @@ func verify_kzg_commitments_against_transactions*(
 
   all_versioned_hashes == mapIt(kzg_commitments, it.kzg_commitment_to_versioned_hash)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/beacon-chain.md#blob-kzg-commitments
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/beacon-chain.md#blob-kzg-commitments
 func process_blob_kzg_commitments(
     state: var eip4844.BeaconState,
     body: eip4844.BeaconBlockBody | eip4844.TrustedBeaconBlockBody |
@@ -797,7 +797,7 @@ proc validate_blobs_sidecar*(slot: Slot, root: Eth2Digest,
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/eip4844/fork-choice.md#is_data_available
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/eip4844/fork-choice.md#is_data_available
 func is_data_available(
     slot: Slot, beacon_block_root: Eth2Digest,
     blob_kzg_commitments: seq[eip4844.KZGCommitment]): bool =
@@ -805,7 +805,7 @@ func is_data_available(
 
   true
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#block-processing
 # TODO workaround for https://github.com/nim-lang/Nim/issues/18095
 # copy of datatypes/phase0.nim
 type SomePhase0Block =
@@ -825,7 +825,7 @@ proc process_block*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#block-processing
 # TODO workaround for https://github.com/nim-lang/Nim/issues/18095
 # copy of datatypes/altair.nim
 type SomeAltairBlock =
@@ -854,7 +854,7 @@ proc process_block*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#block-processing
 # TODO workaround for https://github.com/nim-lang/Nim/issues/18095
 type SomeBellatrixBlock =
   bellatrix.BeaconBlock | bellatrix.SigVerifiedBeaconBlock | bellatrix.TrustedBeaconBlock
diff --git a/beacon_chain/spec/state_transition_epoch.nim b/beacon_chain/spec/state_transition_epoch.nim
index 4e0a3f8b62..9592ee3703 100644
--- a/beacon_chain/spec/state_transition_epoch.nim
+++ b/beacon_chain/spec/state_transition_epoch.nim
@@ -6,8 +6,8 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition - epoch processing, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#epoch-processing and
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#epoch-processing and
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#epoch-processing
 #
 # The entry point is `process_epoch`, which is at the bottom of this file.
 #
@@ -39,7 +39,7 @@ export extras, phase0, altair
 logScope: topics = "consens"
 
 # Accessors that implement the max condition in `get_total_balance`:
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_total_balance
 template current_epoch*(v: TotalBalances): Gwei =
   max(EFFECTIVE_BALANCE_INCREMENT, v.current_epoch_raw)
 template previous_epoch*(v: TotalBalances): Gwei =
@@ -154,7 +154,7 @@ func process_attestations*(
     if v.flags.contains RewardFlags.isPreviousEpochHeadAttester:
       info.balances.previous_epoch_head_attesters_raw += validator_balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#helpers
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#helpers
 # get_eligible_validator_indices
 func is_eligible_validator*(validator: RewardStatus): bool =
   validator.flags.contains(RewardFlags.isActiveInPreviousEpoch) or
@@ -173,8 +173,8 @@ func is_eligible_validator*(validator: ParticipationInfo): bool =
 
 from ./datatypes/eip4844 import BeaconState
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_unslashed_participating_indices
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_unslashed_participating_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_total_balance
 func get_unslashed_participating_balances*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState): UnslashedParticipatingBalances =
@@ -242,7 +242,7 @@ func is_unslashed_participating_index(
     has_flag(epoch_participation[].item(validator_index), flag_index) and
     not state.validators[validator_index].slashed
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#justification-and-finalization
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#justification-and-finalization
 type FinalityState = object
   slot: Slot
   current_epoch_ancestor_root: Eth2Digest
@@ -310,7 +310,7 @@ proc weigh_justification_and_finalization(
   ## state.justification_bits[1:] = state.justification_bits[:-1]
   ## state.justification_bits[0] = 0b0
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#misc
   const JUSTIFICATION_BITS_LENGTH = 4
 
   state.justification_bits = JustificationBits(
@@ -386,7 +386,7 @@ proc weigh_justification_and_finalization(
       current_epoch = current_epoch,
       checkpoint = shortLog(state.finalized_checkpoint)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#justification-and-finalization
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#justification-and-finalization
 proc process_justification_and_finalization*(
     state: var phase0.BeaconState,
     balances: TotalBalances, flags: UpdateFlags = {}) =
@@ -422,7 +422,7 @@ proc compute_unrealized_finality*(
     justified: finalityState.current_justified_checkpoint,
     finalized: finalityState.finalized_checkpoint)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#justification-and-finalization
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#justification-and-finalization
 proc process_justification_and_finalization*(
     state: var (altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
                 eip4844.BeaconState),
@@ -458,7 +458,7 @@ proc compute_unrealized_finality*(
     justified: finalityState.current_justified_checkpoint,
     finalized: finalityState.finalized_checkpoint)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#helpers
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#helpers
 func get_base_reward_sqrt*(state: phase0.BeaconState, index: ValidatorIndex,
     total_balance_sqrt: auto): Gwei =
   # Spec function recalculates total_balance every time, which creates an
@@ -506,7 +506,7 @@ func get_attestation_component_delta(is_unslashed_attester: bool,
   else:
     RewardDelta(penalties: base_reward)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#components-of-attestation-deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#components-of-attestation-deltas
 func get_source_delta*(validator: RewardStatus,
                        base_reward: uint64,
                        balances: TotalBalances,
@@ -584,7 +584,7 @@ func get_inactivity_penalty_delta*(validator: RewardStatus,
 
   delta
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_attestation_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_attestation_deltas
 func get_attestation_deltas(state: phase0.BeaconState, info: var phase0.EpochInfo) =
   ## Update rewards with attestation reward/penalty deltas for each validator.
 
@@ -628,7 +628,7 @@ func get_attestation_deltas(state: phase0.BeaconState, info: var phase0.EpochInf
         info.validators[proposer_index].delta.add(
           proposer_delta.get()[1])
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_base_reward
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_base_reward
 func get_base_reward_increment*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState,
@@ -639,7 +639,7 @@ func get_base_reward_increment*(
     state.validators[index].effective_balance div EFFECTIVE_BALANCE_INCREMENT
   increments * base_reward_per_increment
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_flag_index_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_flag_index_deltas
 func get_flag_index_reward*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState,
@@ -653,16 +653,16 @@ func get_flag_index_reward*(
   else:
     0.Gwei
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_flag_index_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_flag_index_deltas
 func get_unslashed_participating_increment*(
     info: altair.EpochInfo | bellatrix.BeaconState, flag_index: int): Gwei =
   info.balances.previous_epoch[flag_index] div EFFECTIVE_BALANCE_INCREMENT
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_flag_index_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_flag_index_deltas
 func get_active_increments*(info: altair.EpochInfo | bellatrix.BeaconState): Gwei =
   info.balances.current_epoch div EFFECTIVE_BALANCE_INCREMENT
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#get_flag_index_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#get_flag_index_deltas
 iterator get_flag_index_deltas*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            eip4844.BeaconState,
@@ -707,7 +707,7 @@ iterator get_flag_index_deltas*(
       else:
         (vidx, RewardDelta(rewards: 0.Gwei, penalties: 0.Gwei))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#modified-get_inactivity_penalty_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#modified-get_inactivity_penalty_deltas
 iterator get_inactivity_penalty_deltas*(
     cfg: RuntimeConfig, state: altair.BeaconState, info: altair.EpochInfo):
     (ValidatorIndex, Gwei) =
@@ -729,7 +729,7 @@ iterator get_inactivity_penalty_deltas*(
           state.inactivity_scores[vidx]
       yield (vidx, Gwei(penalty_numerator div penalty_denominator))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#modified-get_inactivity_penalty_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#modified-get_inactivity_penalty_deltas
 iterator get_inactivity_penalty_deltas*(
     cfg: RuntimeConfig,
     state: bellatrix.BeaconState | capella.BeaconState | eip4844.BeaconState,
@@ -753,7 +753,7 @@ iterator get_inactivity_penalty_deltas*(
           state.inactivity_scores[vidx]
       yield (vidx, Gwei(penalty_numerator div penalty_denominator))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#rewards-and-penalties-1
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#rewards-and-penalties-1
 func process_rewards_and_penalties*(
     state: var phase0.BeaconState, info: var phase0.EpochInfo) =
   # No rewards are applied at the end of `GENESIS_EPOCH` because rewards are
@@ -776,7 +776,7 @@ func process_rewards_and_penalties*(
     decrease_balance(balance, v.delta.penalties)
     state.balances.asSeq()[idx] = balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#rewards-and-penalties
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#rewards-and-penalties
 func process_rewards_and_penalties*(
     cfg: RuntimeConfig,
     state: var (altair.BeaconState | bellatrix.BeaconState |
@@ -813,7 +813,7 @@ func process_rewards_and_penalties*(
     decrease_balance(balance, info.validators[vidx].delta.penalties)
     state.balances.asSeq()[vidx] = balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#registry-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#registry-updates
 func process_registry_updates*(
     cfg: RuntimeConfig, state: var ForkyBeaconState, cache: var StateCache):
     Result[void, cstring] =
@@ -866,9 +866,9 @@ func process_registry_updates*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#slashings
 func get_adjusted_total_slashing_balance*(
     state: ForkyBeaconState, total_balance: Gwei): Gwei =
   const multiplier =
@@ -885,16 +885,16 @@ func get_adjusted_total_slashing_balance*(
       {.fatal: "process_slashings: incorrect BeaconState type".}
   min(sum(state.slashings.data) * multiplier, total_balance)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#slashings
 func slashing_penalty_applies*(validator: Validator, epoch: Epoch): bool =
   validator.slashed and
   epoch + EPOCHS_PER_SLASHINGS_VECTOR div 2 == validator.withdrawable_epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#slashings
 func get_slashing_penalty*(validator: Validator,
                           adjusted_total_slashing_balance,
                           total_balance: Gwei): Gwei =
@@ -904,9 +904,9 @@ func get_slashing_penalty*(validator: Validator,
                           adjusted_total_slashing_balance
   penalty_numerator div total_balance * increment
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/bellatrix/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/bellatrix/beacon-chain.md#slashings
 func process_slashings*(state: var ForkyBeaconState, total_balance: Gwei) =
   let
     epoch = get_current_epoch(state)
@@ -920,7 +920,7 @@ func process_slashings*(state: var ForkyBeaconState, total_balance: Gwei) =
         validator[], adjusted_total_slashing_balance, total_balance)
       decrease_balance(state, vidx, penalty)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#eth1-data-votes-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#eth1-data-votes-updates
 func process_eth1_data_reset*(state: var ForkyBeaconState) =
   let next_epoch = get_current_epoch(state) + 1
 
@@ -928,7 +928,7 @@ func process_eth1_data_reset*(state: var ForkyBeaconState) =
   if next_epoch mod EPOCHS_PER_ETH1_VOTING_PERIOD == 0:
     state.eth1_data_votes = default(type state.eth1_data_votes)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#effective-balances-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#effective-balances-updates
 func process_effective_balance_updates*(state: var ForkyBeaconState) =
   # Update effective balances with hysteresis
   for vidx in state.validators.vindices:
@@ -950,14 +950,14 @@ func process_effective_balance_updates*(state: var ForkyBeaconState) =
       if new_effective_balance != effective_balance:
         state.validators.mitem(vidx).effective_balance = new_effective_balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings-balances-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings-balances-updates
 func process_slashings_reset*(state: var ForkyBeaconState) =
   let next_epoch = get_current_epoch(state) + 1
 
   # Reset slashings
   state.slashings[int(next_epoch mod EPOCHS_PER_SLASHINGS_VECTOR)] = 0.Gwei
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#randao-mixes-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#randao-mixes-updates
 func process_randao_mixes_reset*(state: var ForkyBeaconState) =
   let
     current_epoch = get_current_epoch(state)
@@ -970,12 +970,12 @@ func process_randao_mixes_reset*(state: var ForkyBeaconState) =
 func compute_historical_root*(state: var ForkyBeaconState): Eth2Digest =
   # Equivalent to hash_tree_root(foo: HistoricalBatch), but without using
   # significant additional stack or heap.
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#historicalbatch
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#historicalbatch
   # In response to https://github.com/status-im/nimbus-eth2/issues/921
   hash_tree_root([
     hash_tree_root(state.block_roots), hash_tree_root(state.state_roots)])
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#historical-roots-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#historical-roots-updates
 func process_historical_roots_update*(state: var ForkyBeaconState) =
   ## Set historical root accumulator
   let next_epoch = get_current_epoch(state) + 1
@@ -983,19 +983,19 @@ func process_historical_roots_update*(state: var ForkyBeaconState) =
   if next_epoch mod (SLOTS_PER_HISTORICAL_ROOT div SLOTS_PER_EPOCH) == 0:
     # Equivalent to hash_tree_root(foo: HistoricalBatch), but without using
     # significant additional stack or heap.
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#historicalbatch
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#historicalbatch
     # In response to https://github.com/status-im/nimbus-eth2/issues/921
     if not state.historical_roots.add state.compute_historical_root():
       raiseAssert "no more room for historical roots, so long and thanks for the fish!"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#participation-records-rotation
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#participation-records-rotation
 func process_participation_record_updates*(state: var phase0.BeaconState) =
   # Rotate current/previous epoch attestations - using swap avoids copying all
   # elements using a slow genericSeqAssign
   state.previous_epoch_attestations.clear()
   swap(state.previous_epoch_attestations, state.current_epoch_attestations)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#participation-flags-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#participation-flags-updates
 func process_participation_flag_updates*(
     state: var (altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
                 eip4844.BeaconState)) =
@@ -1009,7 +1009,7 @@ func process_participation_flag_updates*(
   # grows. New elements are automatically initialized to 0, as required.
   doAssert state.current_epoch_participation.asList.setLen(state.validators.len)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#sync-committee-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#sync-committee-updates
 func process_sync_committee_updates*(
     state: var (altair.BeaconState | bellatrix.BeaconState |
                 capella.BeaconState | eip4844.BeaconState)) =
@@ -1018,7 +1018,7 @@ func process_sync_committee_updates*(
     state.current_sync_committee = state.next_sync_committee
     state.next_sync_committee = get_next_sync_committee(state)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#inactivity-scores
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#inactivity-scores
 func process_inactivity_updates*(
     cfg: RuntimeConfig,
     state: var (altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
@@ -1055,7 +1055,7 @@ func process_inactivity_updates*(
     if pre_inactivity_score != inactivity_score:
       state.inactivity_scores[index] = inactivity_score
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/capella/beacon-chain.md#historical-summaries-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/capella/beacon-chain.md#historical-summaries-updates
 func process_historical_summaries_update*(
     state: var (capella.BeaconState | eip4844.BeaconState)):
     Result[void, cstring] =
@@ -1071,7 +1071,7 @@ func process_historical_summaries_update*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#epoch-processing
 proc process_epoch*(
     cfg: RuntimeConfig, state: var phase0.BeaconState, flags: UpdateFlags,
     cache: var StateCache, info: var phase0.EpochInfo): Result[void, cstring] =
@@ -1130,7 +1130,7 @@ func init*(
            eip4844.BeaconState): T =
   init(result, state)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/beacon-chain.md#epoch-processing
 proc process_epoch*(
     cfg: RuntimeConfig,
     state: var (altair.BeaconState | bellatrix.BeaconState),
@@ -1142,7 +1142,7 @@ proc process_epoch*(
 
   info.init(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#justification-and-finalization
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#justification-and-finalization
   process_justification_and_finalization(state, info.balances, flags)
 
   # state.slot hasn't been incremented yet.
@@ -1157,13 +1157,13 @@ proc process_epoch*(
 
   process_inactivity_updates(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#process_rewards_and_penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#process_rewards_and_penalties
   process_rewards_and_penalties(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#registry-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#registry-updates
   ? process_registry_updates(cfg, state, cache)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
   process_slashings(state, info.balances.current_epoch)
 
   process_eth1_data_reset(state)
@@ -1188,7 +1188,7 @@ proc process_epoch*(
 
   info.init(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#justification-and-finalization
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#justification-and-finalization
   process_justification_and_finalization(state, info.balances, flags)
 
   # state.slot hasn't been incremented yet.
@@ -1203,13 +1203,13 @@ proc process_epoch*(
 
   process_inactivity_updates(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#process_rewards_and_penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#process_rewards_and_penalties
   process_rewards_and_penalties(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#registry-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#registry-updates
   ? process_registry_updates(cfg, state, cache)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#slashings
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#slashings
   process_slashings(state, info.balances.current_epoch)
 
   process_eth1_data_reset(state)
diff --git a/beacon_chain/spec/validator.nim b/beacon_chain/spec/validator.nim
index c7b989313d..64c22377a7 100644
--- a/beacon_chain/spec/validator.nim
+++ b/beacon_chain/spec/validator.nim
@@ -21,8 +21,8 @@ const
   PIVOT_VIEW_SIZE = SEED_SIZE + ROUND_SIZE
   TOTAL_SIZE = PIVOT_VIEW_SIZE + POSITION_WINDOW_SIZE
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_shuffled_index
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_committee
 # Port of https://github.com/protolambda/zrnt/blob/master/eth2/beacon/shuffle.go
 # Shuffles or unshuffles, depending on the `dir` (true for shuffling, false for unshuffling
 func shuffle_list*(input: var seq[ValidatorIndex], seed: Eth2Digest) =
@@ -152,13 +152,13 @@ func get_shuffled_active_validator_indices*(
   withState(state):
     cache.get_shuffled_active_validator_indices(forkyState.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_active_validator_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_active_validator_indices
 func count_active_validators*(state: ForkyBeaconState,
                               epoch: Epoch,
                               cache: var StateCache): uint64 =
   cache.get_shuffled_active_validator_indices(state, epoch).lenu64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_committee_count_per_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_committee_count_per_slot
 func get_committee_count_per_slot*(num_active_validators: uint64): uint64 =
   clamp(
     num_active_validators div SLOTS_PER_EPOCH div TARGET_COMMITTEE_SIZE,
@@ -183,7 +183,7 @@ iterator get_committee_indices*(committee_count_per_slot: uint64): CommitteeInde
     let committee_index = CommitteeIndex.init(idx).expect("value clamped")
     yield committee_index
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_committee
 func compute_committee_slice*(
     active_validators, index, count: uint64): Slice[int] =
   doAssert active_validators <= ValidatorIndex.high.uint64
@@ -229,7 +229,7 @@ func compute_committee_len*(
 
   (slice.b - slice.a + 1).uint64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_committee
 iterator get_beacon_committee*(
     state: ForkyBeaconState, slot: Slot, index: CommitteeIndex,
     cache: var StateCache): (int, ValidatorIndex) =
@@ -269,7 +269,7 @@ func get_beacon_committee*(
   withState(state):
     get_beacon_committee(forkyState.data, slot, index, cache)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee_len*(
     state: ForkyBeaconState, slot: Slot, index: CommitteeIndex,
     cache: var StateCache): uint64 =
@@ -292,7 +292,7 @@ func get_beacon_committee_len*(
   withState(state):
     get_beacon_committee_len(forkyState.data, slot, index, cache)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_shuffled_index
 func compute_shuffled_index*(
     index: uint64, index_count: uint64, seed: Eth2Digest): uint64 =
   ## Return the shuffled index corresponding to ``seed`` (and ``index_count``).
@@ -327,7 +327,7 @@ func compute_shuffled_index*(
 
   cur_idx_permuted
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#compute_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#compute_proposer_index
 func compute_proposer_index(state: ForkyBeaconState,
     indices: seq[ValidatorIndex], seed: Eth2Digest): Opt[ValidatorIndex] =
   ## Return from ``indices`` a random index sampled by effective balance.
@@ -354,7 +354,7 @@ func compute_proposer_index(state: ForkyBeaconState,
       return Opt.some(candidate_index)
     i += 1
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_proposer_index
 func get_beacon_proposer_index*(
     state: ForkyBeaconState, cache: var StateCache, slot: Slot):
     Opt[ValidatorIndex] =
@@ -392,7 +392,7 @@ func get_beacon_proposer_index*(
 
     return res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#get_beacon_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#get_beacon_proposer_index
 func get_beacon_proposer_index*(state: ForkyBeaconState, cache: var StateCache):
     Opt[ValidatorIndex] =
   get_beacon_proposer_index(state, cache, state.slot)
@@ -403,7 +403,7 @@ func get_beacon_proposer_index*(state: ForkedHashedBeaconState,
   withState(state):
     get_beacon_proposer_index(forkyState.data, cache, slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#aggregation-selection
 func is_aggregator*(committee_len: uint64, slot_signature: ValidatorSig): bool =
   let
     modulo = max(1'u64, committee_len div TARGET_AGGREGATORS_PER_COMMITTEE)
diff --git a/beacon_chain/spec/weak_subjectivity.nim b/beacon_chain/spec/weak_subjectivity.nim
index f59d3d4906..d3ff9e0ea0 100644
--- a/beacon_chain/spec/weak_subjectivity.nim
+++ b/beacon_chain/spec/weak_subjectivity.nim
@@ -26,7 +26,7 @@ func compute_weak_subjectivity_period(
       SAFETY_DECAY * validator_count div (2 * 100 * cfg.MIN_PER_EPOCH_CHURN_LIMIT)
   return weak_subjectivity_period
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/weak-subjectivity.md#checking-for-stale-weak-subjectivity-checkpoint
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/weak-subjectivity.md#checking-for-stale-weak-subjectivity-checkpoint
 func is_within_weak_subjectivity_period*(cfg: RuntimeConfig, current_slot: Slot,
                                          ws_state: ForkedHashedBeaconState,
                                          ws_checkpoint: Checkpoint): bool =
diff --git a/beacon_chain/sync/light_client_manager.nim b/beacon_chain/sync/light_client_manager.nim
index 7a7f3d2ab2..e2755fd80e 100644
--- a/beacon_chain/sync/light_client_manager.nim
+++ b/beacon_chain/sync/light_client_manager.nim
@@ -112,7 +112,7 @@ proc isGossipSupported*(
   else:
     period <= finalizedPeriod
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/p2p-interface.md#getlightclientbootstrap
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/p2p-interface.md#getlightclientbootstrap
 proc doRequest(
     e: typedesc[Bootstrap],
     peer: Peer,
@@ -178,7 +178,7 @@ proc doRequest(
     raises: [Defect, IOError].} =
   peer.lightClientFinalityUpdate()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/altair/light-client/p2p-interface.md#getlightclientoptimisticupdate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/altair/light-client/p2p-interface.md#getlightclientoptimisticupdate
 proc doRequest(
     e: typedesc[OptimisticUpdate],
     peer: Peer
diff --git a/beacon_chain/validators/action_tracker.nim b/beacon_chain/validators/action_tracker.nim
index 33ba6ce48e..1d39d3d82b 100644
--- a/beacon_chain/validators/action_tracker.nim
+++ b/beacon_chain/validators/action_tracker.nim
@@ -77,7 +77,7 @@ type
 func hash*(x: AggregatorDuty): Hash =
   hashAllFields(x)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#phase-0-attestation-subnet-stability
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#phase-0-attestation-subnet-stability
 func randomStabilitySubnet(
     self: ActionTracker, epoch: Epoch): tuple[subnet_id: SubnetId, expiration: Epoch] =
   (
@@ -175,7 +175,7 @@ proc updateSlot*(tracker: var ActionTracker, wallSlot: Slot) =
   # One stability subnet per known validator
   static: doAssert RANDOM_SUBNETS_PER_VALIDATOR == 1
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#phase-0-attestation-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#phase-0-attestation-subnet-stability
   let expectedSubnets =
     min(ATTESTATION_SUBNET_COUNT.int, tracker.knownValidators.len)
 
diff --git a/beacon_chain/validators/slashing_protection_v2.nim b/beacon_chain/validators/slashing_protection_v2.nim
index eac7eafa7e..0e049e7b2c 100644
--- a/beacon_chain/validators/slashing_protection_v2.nim
+++ b/beacon_chain/validators/slashing_protection_v2.nim
@@ -33,7 +33,7 @@ import
 # - https://notes.ethereum.org/@djrtwo/Bkn3zpwxB#Validator-responsibilities
 #
 # Phase 0 spec - Honest Validator - how to avoid slashing
-# - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#how-to-avoid-slashing
+# - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#how-to-avoid-slashing
 #
 # In-depth reading on slashing conditions
 #
@@ -55,7 +55,7 @@ import
 #   2. An attester can get slashed for signing
 #      two attestations that together violate
 #      the Casper FFG slashing conditions.
-# - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#ffg-vote
+# - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#ffg-vote
 #   The "source" is the current_justified_epoch
 #   The "target" is the current_epoch
 #
diff --git a/docs/attestation_flow.md b/docs/attestation_flow.md
index bfc377192f..2921547f35 100644
--- a/docs/attestation_flow.md
+++ b/docs/attestation_flow.md
@@ -6,10 +6,10 @@ This is a WIP document to explain the attestation flows.
 
 It is important to distinguish attestation `validation` from attestation `verification`.
 - Attestation `validation` is defined in the P2P specs. Validated attestations can be forwarded on GossipSub.
-  - Aggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+  - Aggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 - Attestation `verification` is defined in the consensus specs. Verified attestations can affect fork choice and may be included in a block.
-  - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#attestations
+  - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#attestations
 
 From the specs it seems like gossip attestation `validation` is a superset of consensus attestation `verification`.
 
@@ -51,8 +51,8 @@ These GossipSub topics are used to listen for attestations:
 - Unaggregated: `/eth2/{$forkDigest}/beacon_attestation_{subnetIndex}/ssz_snappy`
 
 The attestations are then validated by `validateAttestation()` or `validateAggregate()` in either `attestationValidator()` or `aggregateValidator()` according to the P2P specs.
-- https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#attestation-subnets
+- https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#attestation-subnets
 
 Finally, valid attestations are added to the local `attestationPool`.
 Attestations are dropped in case of an error.
diff --git a/docs/block_flow.md b/docs/block_flow.md
index 8086a178c0..fb3f186648 100644
--- a/docs/block_flow.md
+++ b/docs/block_flow.md
@@ -6,10 +6,10 @@ This is a WIP document to explain the beacon block flows.
 
 Important distinction:
 - We distinguish block `validation` which is defined in the P2P specs:
-  https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_block.
+  https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_block.
   A validated block can be forwarded on gossipsub.
 - and we distinguish `verification` which is defined in consensus specs:
-  https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/beacon-chain.md#block-processing
+  https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/beacon-chain.md#block-processing
   A block needs to be verified to enter fork choice, the DAG and the BeaconChainDB
 
 In particular in terms of costly checks validating a block only requires checking:
@@ -103,7 +103,7 @@ It is important to note that 3 data structures are sharing the same `AsyncQueue[
 Blocks are listened to via the gossipsub topic `/eth2/{$forkDigest}/beacon_block/ssz_snappy` (`topicBeaconBlocks` variable)
 
 They are then:
-- validated by `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_block
+- validated by `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_block
 - Important: P2P validation is not full verification (state transition and internal cryptographic signatures were not checked)
 - enqueued in the shared block queue `AsyncQueue[BlockEntry]` in case of success
 - dropped in case of error
@@ -115,7 +115,7 @@ Logs:
 
 ### Gossip flow out
 
-- After validation in `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/p2p-interface.md#beacon_block
+- After validation in `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/p2p-interface.md#beacon_block
 - Important: P2P validation is not full verification (state transition and internal cryptographic signatures were not checked)
 - We jump into libp2p/protocols/pubsub/pubsub.nim in the method `validate(PubSub, message)`
 - which was called by `rpcHandler(GossipSub, PubSubPeer, RPCMsg)`
diff --git a/tests/consensus_spec/fixtures_utils.nim b/tests/consensus_spec/fixtures_utils.nim
index a23343efca..bf61d60a5f 100644
--- a/tests/consensus_spec/fixtures_utils.nim
+++ b/tests/consensus_spec/fixtures_utils.nim
@@ -74,7 +74,7 @@ type
     rewards*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
     penalties*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#eth1block
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#eth1block
   Eth1Block* = object
     timestamp*: uint64
     deposit_root*: Eth2Digest
diff --git a/tests/testblockutil.nim b/tests/testblockutil.nim
index 84c1c53ca4..73b040b59e 100644
--- a/tests/testblockutil.nim
+++ b/tests/testblockutil.nim
@@ -26,7 +26,7 @@ const
   MockPrivKeys* = MockPrivKeysT()
   MockPubKeys* = MockPubKeysT()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/tests/core/pyspec/eth2spec/test/helpers/keys.py
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/tests/core/pyspec/eth2spec/test/helpers/keys.py
 func `[]`*(_: MockPrivKeysT, index: ValidatorIndex|uint64): ValidatorPrivKey =
   # 0 is not a valid BLS private key - 1000 helps interop with rust BLS library,
   # lighthouse. EF tests use 1 instead of 1000.
@@ -268,7 +268,7 @@ func makeAttestationData*(
     "Computed epoch was " & $slot.epoch &
     "  while the state current_epoch was " & $current_epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.1/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.2/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.uint64,