feat(rpc): add subscribeFinalizedChainNotifications endpoint#22011
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feat(rpc): add subscribeFinalizedChainNotifications endpoint#22011
subscribeFinalizedChainNotifications endpoint#22011Conversation
Adds a new subscription endpoint that buffers committed chain notifications and emits them as `Vec<CanonStateNotification>` once a new finalized block is received. On reorg, the buffer is cleared. This merges `canonical_state_stream` and `finalized_block_stream` from `ForkChoiceSubscriptions` to provide finalization-aware chain notifications. Amp-Thread-ID: https://ampcode.com/threads/T-019c44a8-74e0-755e-824d-2915ca653a87 Co-authored-by: Amp <amp@ampcode.com>
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✅ Changelog found on PR. |
Added a new RPC endpoint for chain notifications.
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CarlBeek
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Feb 10, 2026
* paradigmxyz/main: (144 commits) feat(engine): add getPayloadBodiesV2 endpoints for EIP-7928 BAL support (paradigmxyz#21774) ci: skip scheduled workflows on forks (paradigmxyz#22022) chore: rm random log file (paradigmxyz#22023) chore: remove base.reth.rs public endpoint references (paradigmxyz#22019) feat(rpc): add `subscribeFinalizedChainNotifications` endpoint (paradigmxyz#22011) feat(trie): remove `SerialSparseTrie` (paradigmxyz#21808) fix(rocksdb): set max_open_files to prevent fd exhaustion (paradigmxyz#22005) refactor(txpool): rename and document validation methods (paradigmxyz#22008) feat(engine): prefetch withdrawal addresses in pre-warming (paradigmxyz#21966) refactor(pool): add IntoIter: Send bounds to avoid unnecessary Vec collect (paradigmxyz#22001) fix(rpc): enforce blockHash constraint in append_matching_block_logs (paradigmxyz#22007) chore: move Kurtosis failures to the hive slack channel (paradigmxyz#21983) feat(rpc): propagate TransactionOrigin through send_transaction and batcher (paradigmxyz#21969) feat(engine): reorg depth commitment metric (paradigmxyz#21992) feat(storage): add use_hashed_state storage setting (paradigmxyz#21997) perf: better scheduling for storage roots computation (paradigmxyz#21987) chore(deps): bump alloy 1.6.2 -> 1.6.3 (paradigmxyz#21986) fix(stages): skip sender unwind when fully pruned (paradigmxyz#21988) chore(net): remove OP stack bootnodes (paradigmxyz#21984) ci: use depot for hive and kurtosis image builds, run daily (paradigmxyz#21976) ... # Conflicts: # .github/workflows/compact.yml # .github/workflows/dependencies.yml # .github/workflows/docker-tag-latest.yml # .github/workflows/docker.yml # .github/workflows/e2e.yml # .github/workflows/hive.yml # .github/workflows/integration.yml # .github/workflows/kurtosis.yml # .github/workflows/lint.yml # .github/workflows/release.yml # .github/workflows/reproducible-build.yml # .github/workflows/stale.yml # .github/workflows/sync-era.yml # .github/workflows/sync.yml # .github/workflows/unit.yml # bin/reth/Cargo.toml # crates/cli/commands/src/node.rs # crates/node/core/src/node_config.rs
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Summary
Adds a new RPC subscription endpoint
reth_subscribeFinalizedChainNotificationsthat emits committed chain notifications once a new finalized block is received.How it works
Commitnotifications fromcanonical_state_streamReorgfinalized_block_stream, drains all buffered commits whose tip is at or below the finalized block number and emits them asVec<CanonStateNotification>Changes
rpc-api: AddedsubscribeFinalizedChainNotifications/unsubscribeFinalizedChainNotificationssubscription definitionrpc: AddedForkChoiceSubscriptionstrait bound on theRethApiServerimpl and implemented thefinalized_chain_notificationshandlerrpc-builder: PropagatedForkChoiceSubscriptionsbound to the relevant impl blocks