diff --git a/yarn-project/protocol-contracts/src/protocol_contract.ts b/yarn-project/protocol-contracts/src/protocol_contract.ts
index 6544cdab1209..283cd82df733 100644
--- a/yarn-project/protocol-contracts/src/protocol_contract.ts
+++ b/yarn-project/protocol-contracts/src/protocol_contract.ts
@@ -20,4 +20,17 @@ export function isProtocolContract(address: AztecAddress) {
   return Object.values(ProtocolContractAddress).some(a => a.equals(address));
 }
 
+/** Returns true if the address is one of the ACTUAL protocol contracts (ContractInstanceRegistry,
+ * ContractClassRegistry or FeeJuice).
+ *
+ * TODO(F-416): Drop this function when protocol contracts are redeployed.
+ */
+export function isActualProtocolContract(address: AztecAddress) {
+  return (
+    address.equals(ProtocolContractAddress.ContractInstanceRegistry) ||
+    address.equals(ProtocolContractAddress.ContractClassRegistry) ||
+    address.equals(ProtocolContractAddress.FeeJuice)
+  );
+}
+
 export { type ProtocolContractsProvider } from './provider/protocol_contracts_provider.js';
diff --git a/yarn-project/pxe/src/contract_function_simulator/oracle/oracle.ts b/yarn-project/pxe/src/contract_function_simulator/oracle/oracle.ts
index 12d673d745d0..5d17986be4dd 100644
--- a/yarn-project/pxe/src/contract_function_simulator/oracle/oracle.ts
+++ b/yarn-project/pxe/src/contract_function_simulator/oracle/oracle.ts
@@ -85,13 +85,28 @@ export class Oracle {
     });
 
     // Build callback object and return it
-    return oracleNames.reduce((acc, name) => {
+    const callback = oracleNames.reduce((acc, name) => {
       const method = this[name as keyof Omit<Oracle, (typeof excludedProps)[number]>];
       acc[name] = method.bind(this);
       return acc;
     }, {} as ACIRCallback);
+
+    // Legacy oracle names used by alpha payload protocol contracts (ContractInstanceRegistry,
+    // ContractClassRegistry, FeeJuice). Their bytecode is committed and cannot be changed.
+    // TODO(F-416): Remove these aliases on v5 when protocol contracts are redeployed.
+    const legacyOracles: ACIRCallback = {
+      utilityLog: this.aztec_utl_log.bind(this),
+      utilityAssertCompatibleOracleVersion: this.aztec_utl_assertCompatibleOracleVersion.bind(this),
+      utilityLoadCapsule: this.aztec_utl_loadCapsule.bind(this),
+      privateStoreInExecutionCache: this.aztec_prv_storeInExecutionCache.bind(this),
+      privateLoadFromExecutionCache: this.aztec_prv_loadFromExecutionCache.bind(this),
+    };
+
+    return { ...callback, ...legacyOracles };
   }
 
+  // TODO(F-416): This oracle must never change its signature - it is called by the pinned alpha payload protocol
+  // contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) which cannot be redeployed.
   // eslint-disable-next-line camelcase
   aztec_utl_assertCompatibleOracleVersion([version]: ACVMField[]) {
     this.handlerAsMisc().assertCompatibleOracleVersion(Fr.fromString(version).toNumber());
@@ -104,12 +119,16 @@ export class Oracle {
     return Promise.resolve([toACVMField(val)]);
   }
 
+  // TODO(F-416): This oracle must never change its signature - it is called by the pinned alpha payload protocol
+  // contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) which cannot be redeployed.
   // eslint-disable-next-line camelcase
   aztec_prv_storeInExecutionCache(values: ACVMField[], [hash]: ACVMField[]): Promise<ACVMField[]> {
     this.handlerAsPrivate().storeInExecutionCache(values.map(Fr.fromString), Fr.fromString(hash));
     return Promise.resolve([]);
   }
 
+  // TODO(F-416): This oracle must never change its signature - it is called by the pinned alpha payload protocol
+  // contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) which cannot be redeployed.
   // eslint-disable-next-line camelcase
   async aztec_prv_loadFromExecutionCache([returnsHash]: ACVMField[]): Promise<ACVMField[][]> {
     const values = await this.handlerAsPrivate().loadFromExecutionCache(Fr.fromString(returnsHash));
@@ -426,6 +445,8 @@ export class Oracle {
     return Promise.resolve([]);
   }
 
+  // TODO(F-416): This oracle must never change its signature - it is called by the pinned alpha payload protocol
+  // contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) which cannot be redeployed.
   // eslint-disable-next-line camelcase
   async aztec_utl_log(
     level: ACVMField[],
@@ -540,6 +561,8 @@ export class Oracle {
     return [];
   }
 
+  // TODO(F-416): This oracle must never change its signature - it is called by the pinned alpha payload protocol
+  // contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) which cannot be redeployed.
   // eslint-disable-next-line camelcase
   async aztec_utl_loadCapsule(
     [contractAddress]: ACVMField[],
diff --git a/yarn-project/pxe/src/contract_function_simulator/oracle/utility_execution_oracle.ts b/yarn-project/pxe/src/contract_function_simulator/oracle/utility_execution_oracle.ts
index dfb66ce833e3..17c8138a0fd9 100644
--- a/yarn-project/pxe/src/contract_function_simulator/oracle/utility_execution_oracle.ts
+++ b/yarn-project/pxe/src/contract_function_simulator/oracle/utility_execution_oracle.ts
@@ -6,6 +6,7 @@ import { Point } from '@aztec/foundation/curves/grumpkin';
 import { LogLevels, type Logger, createLogger } from '@aztec/foundation/log';
 import type { MembershipWitness } from '@aztec/foundation/trees';
 import type { KeyStore } from '@aztec/key-store';
+import { isActualProtocolContract } from '@aztec/protocol-contracts';
 import type { AuthWitness } from '@aztec/stdlib/auth-witness';
 import { AztecAddress } from '@aztec/stdlib/aztec-address';
 import { BlockHash } from '@aztec/stdlib/block';
@@ -109,6 +110,12 @@ export class UtilityExecutionOracle implements IMiscOracle, IUtilityExecutionOra
   }
 
   public assertCompatibleOracleVersion(version: number): void {
+    // Alpha payload protocol contracts (ContractInstanceRegistry, ContractClassRegistry, FeeJuice) shipped with
+    // committed bytecode that cannot be changed. Skip the version check for these contracts.
+    // TODO(F-416): Remove this hack on v5 when protocol contracts are redeployed.
+    if (isActualProtocolContract(this.contractAddress)) {
+      return;
+    }
     if (version !== ORACLE_VERSION) {
       throw new Error(`Incompatible oracle version. Expected version ${ORACLE_VERSION}, got ${version}.`);
     }