diff --git a/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java b/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java
index c8c0eaf6abd..678b489baf1 100644
--- a/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java
+++ b/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java
@@ -1407,7 +1407,7 @@ private void configureNativeLibs() {
     if (genesisConfigOptionsSupplier.get().getCancunTime().isPresent()
         || genesisConfigOptionsSupplier.get().getCancunEOFTime().isPresent()
         || genesisConfigOptionsSupplier.get().getPragueTime().isPresent()
-        || genesisConfigOptionsSupplier.get().getPragueEOFTime().isPresent()) {
+        || genesisConfigOptionsSupplier.get().getOsakaTime().isPresent()) {
       if (kzgTrustedSetupFile != null) {
         KZGPointEvalPrecompiledContract.init(kzgTrustedSetupFile);
       } else {
diff --git a/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java
index 07ddd0d7eac..e2458c93247 100644
--- a/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java
+++ b/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java
@@ -257,11 +257,11 @@ default boolean isConsensusMigration() {
   OptionalLong getPragueTime();
 
   /**
-   * Gets Prague EOF time.
+   * Gets Osaka time.
    *
-   * @return the prague time
+   * @return the osaka time
    */
-  OptionalLong getPragueEOFTime();
+  OptionalLong getOsakaTime();
 
   /**
    * Gets future eips time.
diff --git a/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java
index 83b1f48fb48..51f85f0ec82 100644
--- a/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java
+++ b/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java
@@ -308,8 +308,8 @@ public OptionalLong getPragueTime() {
   }
 
   @Override
-  public OptionalLong getPragueEOFTime() {
-    return getOptionalLong("pragueeoftime");
+  public OptionalLong getOsakaTime() {
+    return getOptionalLong("osakatime");
   }
 
   @Override
@@ -486,7 +486,7 @@ public Map<String, Object> asMap() {
     getCancunTime().ifPresent(l -> builder.put("cancunTime", l));
     getCancunEOFTime().ifPresent(l -> builder.put("cancunEOFTime", l));
     getPragueTime().ifPresent(l -> builder.put("pragueTime", l));
-    getPragueEOFTime().ifPresent(l -> builder.put("pragueEOFTime", l));
+    getOsakaTime().ifPresent(l -> builder.put("osakaTime", l));
     getTerminalBlockNumber().ifPresent(l -> builder.put("terminalBlockNumber", l));
     getTerminalBlockHash().ifPresent(h -> builder.put("terminalBlockHash", h.toHexString()));
     getFutureEipsTime().ifPresent(l -> builder.put("futureEipsTime", l));
@@ -640,7 +640,7 @@ public List<Long> getForkBlockTimestamps() {
             getCancunTime(),
             getCancunEOFTime(),
             getPragueTime(),
-            getPragueEOFTime(),
+            getOsakaTime(),
             getFutureEipsTime(),
             getExperimentalEipsTime());
     // when adding forks add an entry to ${REPO_ROOT}/config/src/test/resources/all_forks.json
diff --git a/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java
index ee9584fd3a4..c9c8dad7954 100644
--- a/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java
+++ b/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java
@@ -50,7 +50,7 @@ public class StubGenesisConfigOptions implements GenesisConfigOptions, Cloneable
   private OptionalLong cancunTime = OptionalLong.empty();
   private OptionalLong cancunEOFTime = OptionalLong.empty();
   private OptionalLong pragueTime = OptionalLong.empty();
-  private OptionalLong pragueEOFTime = OptionalLong.empty();
+  private OptionalLong osakaTime = OptionalLong.empty();
   private OptionalLong futureEipsTime = OptionalLong.empty();
   private OptionalLong experimentalEipsTime = OptionalLong.empty();
   private OptionalLong terminalBlockNumber = OptionalLong.empty();
@@ -252,8 +252,8 @@ public OptionalLong getPragueTime() {
   }
 
   @Override
-  public OptionalLong getPragueEOFTime() {
-    return pragueEOFTime;
+  public OptionalLong getOsakaTime() {
+    return osakaTime;
   }
 
   @Override
@@ -671,14 +671,13 @@ public StubGenesisConfigOptions pragueTime(final long timestamp) {
   }
 
   /**
-   * PragueEOF time.
+   * Osaka time.
    *
    * @param timestamp the timestamp
    * @return the stub genesis config options
    */
-  public StubGenesisConfigOptions pragueEOFTime(final long timestamp) {
-    pragueTime = OptionalLong.of(timestamp);
-    pragueEOFTime = pragueTime;
+  public StubGenesisConfigOptions osakaTime(final long timestamp) {
+    osakaTime = OptionalLong.of(timestamp);
     return this;
   }
 
diff --git a/config/src/test/java/org/hyperledger/besu/config/GenesisConfigOptionsTest.java b/config/src/test/java/org/hyperledger/besu/config/GenesisConfigOptionsTest.java
index 69494a9c9c4..fe8149cc654 100644
--- a/config/src/test/java/org/hyperledger/besu/config/GenesisConfigOptionsTest.java
+++ b/config/src/test/java/org/hyperledger/besu/config/GenesisConfigOptionsTest.java
@@ -207,10 +207,9 @@ void shouldGetPragueTime() {
   }
 
   @Test
-  void shouldGetPragueEOFTime() {
-    final GenesisConfigOptions config =
-        fromConfigOptions(singletonMap("pragueEOFTime", 1670470143));
-    assertThat(config.getPragueEOFTime()).hasValue(1670470143);
+  void shouldGetOsakaTime() {
+    final GenesisConfigOptions config = fromConfigOptions(singletonMap("osakaTime", 1670470143));
+    assertThat(config.getOsakaTime()).hasValue(1670470143);
   }
 
   @Test
@@ -247,7 +246,7 @@ void shouldNotReturnEmptyOptionalWhenBlockNumberNotSpecified() {
     assertThat(config.getCancunTime()).isEmpty();
     assertThat(config.getCancunEOFTime()).isEmpty();
     assertThat(config.getPragueTime()).isEmpty();
-    assertThat(config.getPragueEOFTime()).isEmpty();
+    assertThat(config.getOsakaTime()).isEmpty();
     assertThat(config.getFutureEipsTime()).isEmpty();
     assertThat(config.getExperimentalEipsTime()).isEmpty();
   }
diff --git a/datatypes/src/main/java/org/hyperledger/besu/datatypes/HardforkId.java b/datatypes/src/main/java/org/hyperledger/besu/datatypes/HardforkId.java
index 85ec84b4ade..d8b938a1b31 100644
--- a/datatypes/src/main/java/org/hyperledger/besu/datatypes/HardforkId.java
+++ b/datatypes/src/main/java/org/hyperledger/besu/datatypes/HardforkId.java
@@ -81,8 +81,6 @@ enum MainnetHardforkId implements HardforkId {
     CANCUN_EOF(false, "Cancun + EOF"),
     /** Prague fork. */
     PRAGUE(false, "Prague"),
-    /** Prague + EOF fork. */
-    PRAGUE_EOF(false, "Prague + EOF"),
     /** Osaka fork. */
     OSAKA(false, "Osaka"),
     /** Amsterdam fork. */
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthGetBlockReceipts.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthGetBlockReceipts.java
index a113e4ee8e8..819ac5e1eb4 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthGetBlockReceipts.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthGetBlockReceipts.java
@@ -95,7 +95,8 @@ private BlockReceiptsResult getBlockReceiptsResult(final Hash blockHash) {
             .map(
                 block ->
                     block.getTransactions().stream()
-                        .map(tx -> txReceipt(tx).get())
+                        .map(this::txReceipt)
+                        .flatMap(Optional::stream)
                         .collect(Collectors.toList()))
             .orElse(new ArrayList<>());
 
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/GenesisState.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/GenesisState.java
index 00b20a0170f..c2243986c22 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/GenesisState.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/chain/GenesisState.java
@@ -312,7 +312,7 @@ private static boolean isCancunEOFAtGenesis(final GenesisConfigFile genesis) {
     if (cancunEOFTimestamp.isPresent()) {
       return genesis.getTimestamp() >= cancunEOFTimestamp.getAsLong();
     }
-    return isPragueEOFAtGenesis(genesis);
+    return false;
   }
 
   private static boolean isPragueAtGenesis(final GenesisConfigFile genesis) {
@@ -320,13 +320,13 @@ private static boolean isPragueAtGenesis(final GenesisConfigFile genesis) {
     if (pragueTimestamp.isPresent()) {
       return genesis.getTimestamp() >= pragueTimestamp.getAsLong();
     }
-    return isPragueEOFAtGenesis(genesis);
+    return isOsakaAtGenesis(genesis);
   }
 
-  private static boolean isPragueEOFAtGenesis(final GenesisConfigFile genesis) {
-    final OptionalLong pragueEOFTimestamp = genesis.getConfigOptions().getPragueEOFTime();
-    if (pragueEOFTimestamp.isPresent()) {
-      return genesis.getTimestamp() >= pragueEOFTimestamp.getAsLong();
+  private static boolean isOsakaAtGenesis(final GenesisConfigFile genesis) {
+    final OptionalLong osakaTimestamp = genesis.getConfigOptions().getOsakaTime();
+    if (osakaTimestamp.isPresent()) {
+      return genesis.getTimestamp() >= osakaTimestamp.getAsLong();
     }
     return isFutureEipsTimeAtGenesis(genesis);
   }
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecFactory.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecFactory.java
index 55bfb363baa..615a4762518 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecFactory.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecFactory.java
@@ -224,8 +224,8 @@ public ProtocolSpecBuilder pragueDefinition(final GenesisConfigOptions genesisCo
         metricsSystem);
   }
 
-  public ProtocolSpecBuilder pragueEOFDefinition(final GenesisConfigOptions genesisConfigOptions) {
-    return MainnetProtocolSpecs.pragueEOFDefinition(
+  public ProtocolSpecBuilder osakaDefinition(final GenesisConfigOptions genesisConfigOptions) {
+    return MainnetProtocolSpecs.osakaDefinition(
         chainId,
         isRevertReasonEnabled,
         genesisConfigOptions,
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecs.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecs.java
index b5b2f678d67..34261714774 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecs.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetProtocolSpecs.java
@@ -57,8 +57,8 @@
 import org.hyperledger.besu.evm.gascalculator.HomesteadGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.IstanbulGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.LondonGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PetersburgGasCalculator;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PragueGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.ShanghaiGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.SpuriousDragonGasCalculator;
@@ -815,7 +815,7 @@ static ProtocolSpecBuilder pragueDefinition(
         .name("Prague");
   }
 
-  static ProtocolSpecBuilder pragueEOFDefinition(
+  static ProtocolSpecBuilder osakaDefinition(
       final Optional<BigInteger> chainId,
       final boolean enableRevertReason,
       final GenesisConfigOptions genesisConfigOptions,
@@ -833,7 +833,7 @@ static ProtocolSpecBuilder pragueEOFDefinition(
             miningParameters,
             isParallelTxProcessingEnabled,
             metricsSystem);
-    return addEOF(chainId, evmConfiguration, protocolSpecBuilder).name("PragueEOF");
+    return addEOF(chainId, evmConfiguration, protocolSpecBuilder).name("Osaka");
   }
 
   private static ProtocolSpecBuilder addEOF(
@@ -842,12 +842,11 @@ private static ProtocolSpecBuilder addEOF(
       final ProtocolSpecBuilder protocolSpecBuilder) {
     return protocolSpecBuilder
         // EIP-7692 EOF v1 Gas calculator
-        .gasCalculator(PragueEOFGasCalculator::new)
+        .gasCalculator(OsakaGasCalculator::new)
         // EIP-7692 EOF v1 EVM and opcodes
         .evmBuilder(
             (gasCalculator, jdCacheConfig) ->
-                MainnetEVMs.pragueEOF(
-                    gasCalculator, chainId.orElse(BigInteger.ZERO), evmConfiguration))
+                MainnetEVMs.osaka(gasCalculator, chainId.orElse(BigInteger.ZERO), evmConfiguration))
         // EIP-7698 EOF v1 creation transaction
         .contractCreationProcessorBuilder(
             evm ->
@@ -867,7 +866,7 @@ static ProtocolSpecBuilder futureEipsDefinition(
       final MiningParameters miningParameters,
       final boolean isParallelTxProcessingEnabled,
       final MetricsSystem metricsSystem) {
-    return pragueEOFDefinition(
+    return osakaDefinition(
             chainId,
             enableRevertReason,
             genesisConfigOptions,
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/ProtocolScheduleBuilder.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/ProtocolScheduleBuilder.java
index beac906be55..52003bc96c5 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/ProtocolScheduleBuilder.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/ProtocolScheduleBuilder.java
@@ -16,6 +16,7 @@
 
 import org.hyperledger.besu.config.GenesisConfigOptions;
 import org.hyperledger.besu.datatypes.HardforkId;
+import org.hyperledger.besu.datatypes.HardforkId.MainnetHardforkId;
 import org.hyperledger.besu.ethereum.chain.BadBlockManager;
 import org.hyperledger.besu.ethereum.core.MiningParameters;
 import org.hyperledger.besu.ethereum.core.PrivacyParameters;
@@ -277,7 +278,7 @@ private void validateEthereumForkOrdering() {
     lastForkBlock = validateForkOrder("Cancun", config.getCancunTime(), lastForkBlock);
     lastForkBlock = validateForkOrder("CancunEOF", config.getCancunEOFTime(), lastForkBlock);
     lastForkBlock = validateForkOrder("Prague", config.getPragueTime(), lastForkBlock);
-    lastForkBlock = validateForkOrder("PragueEOF", config.getPragueEOFTime(), lastForkBlock);
+    lastForkBlock = validateForkOrder("Osaka", config.getOsakaTime(), lastForkBlock);
     lastForkBlock = validateForkOrder("FutureEips", config.getFutureEipsTime(), lastForkBlock);
     lastForkBlock =
         validateForkOrder("ExperimentalEips", config.getExperimentalEipsTime(), lastForkBlock);
@@ -413,9 +414,9 @@ private List<BuilderMapEntry> createMilestones(final MainnetProtocolSpecFactory
                 config.getPragueTime(),
                 specFactory.pragueDefinition(config)),
             timestampMilestone(
-                HardforkId.MainnetHardforkId.PRAGUE_EOF,
-                config.getPragueEOFTime(),
-                specFactory.pragueEOFDefinition(config)),
+                MainnetHardforkId.OSAKA,
+                config.getOsakaTime(),
+                specFactory.osakaDefinition(config)),
             timestampMilestone(
                 HardforkId.MainnetHardforkId.FUTURE_EIPS,
                 config.getFutureEipsTime(),
diff --git a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/CodeValidateSubCommand.java b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/CodeValidateSubCommand.java
index d8be71cde13..bc5ef06f037 100644
--- a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/CodeValidateSubCommand.java
+++ b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/CodeValidateSubCommand.java
@@ -86,7 +86,7 @@ public CodeValidateSubCommand() {
     String fork =
         parentCommand != null && parentCommand.hasFork()
             ? parentCommand.getFork()
-            : EvmSpecVersion.PRAGUE.getName();
+            : EvmSpecVersion.OSAKA.getName();
 
     evm =
         Suppliers.memoize(
diff --git a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/EOFTestSubCommand.java b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/EOFTestSubCommand.java
index fb28701f777..7906cfd953d 100644
--- a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/EOFTestSubCommand.java
+++ b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/EOFTestSubCommand.java
@@ -94,7 +94,7 @@ public void run() {
     }
     ProtocolSpec protocolSpec =
         ReferenceTestProtocolSchedules.getInstance()
-            .geSpecByName(fork == null ? EvmSpecVersion.PRAGUE.getName() : fork);
+            .geSpecByName(fork == null ? EvmSpecVersion.OSAKA.getName() : fork);
     evm = protocolSpec.getEvm();
 
     final JavaType javaType =
@@ -181,7 +181,7 @@ private void executeEOFTest(final String fileName, final Map<String, EOFTestCase
             continue;
           }
           TestResult actualResult;
-          if (evmVersion.ordinal() < EvmSpecVersion.PRAGUE_EOF.ordinal()) {
+          if (evmVersion.ordinal() < EvmSpecVersion.OSAKA.ordinal()) {
             actualResult = failed("EOF_InvalidCode");
           } else {
             actualResult = considerCode(code);
diff --git a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/MainnetGenesisFileModule.java b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/MainnetGenesisFileModule.java
index 0ce7bf98f58..8dc8a74c1f9 100644
--- a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/MainnetGenesisFileModule.java
+++ b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/MainnetGenesisFileModule.java
@@ -157,15 +157,16 @@ public static Map<String, Supplier<ProtocolSchedule>> createSchedules(final BigI
                     .chainId(chainId))),
         Map.entry(
             "prague",
-            createSchedule(
-                new StubGenesisConfigOptions().pragueTime(0).baseFeePerGas(0x0a).chainId(chainId))),
-        Map.entry(
-            "pragueeof",
             createSchedule(
                 new StubGenesisConfigOptions()
-                    .pragueEOFTime(0)
+                    .pragueTime(0)
+                    .osakaTime(0) // TODO remove this once osaka_devnet_0 launches
                     .baseFeePerGas(0x0a)
                     .chainId(chainId))),
+        Map.entry(
+            "osaka",
+            createSchedule(
+                new StubGenesisConfigOptions().osakaTime(0).baseFeePerGas(0x0a).chainId(chainId))),
         Map.entry(
             "futureeips",
             createSchedule(
diff --git a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/PrettyPrintSubCommand.java b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/PrettyPrintSubCommand.java
index e24c24a21e9..c6fac365634 100644
--- a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/PrettyPrintSubCommand.java
+++ b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/PrettyPrintSubCommand.java
@@ -101,7 +101,7 @@ public void run() {
             "Pretty printing of legacy EVM is not supported. Patches welcome!");
 
       } else {
-        String fork = EvmSpecVersion.PRAGUE.getName();
+        String fork = EvmSpecVersion.OSAKA.getName();
         if (parentCommand.hasFork()) {
           fork = parentCommand.getFork();
         }
diff --git a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/benchmarks/BenchmarkExecutor.java b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/benchmarks/BenchmarkExecutor.java
index 082fae7f69d..35d5de5d666 100644
--- a/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/benchmarks/BenchmarkExecutor.java
+++ b/ethereum/evmtool/src/main/java/org/hyperledger/besu/evmtool/benchmarks/BenchmarkExecutor.java
@@ -30,8 +30,8 @@
 import org.hyperledger.besu.evm.gascalculator.HomesteadGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.IstanbulGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.LondonGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PetersburgGasCalculator;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PragueGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.ShanghaiGasCalculator;
 import org.hyperledger.besu.evm.precompile.PrecompiledContract;
@@ -142,17 +142,11 @@ public static GasCalculator gasCalculatorForFork(final String fork) {
       case LONDON, PARIS -> new LondonGasCalculator();
       case SHANGHAI -> new ShanghaiGasCalculator();
       case CANCUN -> new CancunGasCalculator();
+      case CANCUN_EOF -> new OsakaGasCalculator();
       case PRAGUE -> new PragueGasCalculator();
-      case CANCUN_EOF,
-              PRAGUE_EOF,
-              OSAKA,
-              AMSTERDAM,
-              BOGOTA,
-              POLIS,
-              BANGKOK,
-              FUTURE_EIPS,
-              EXPERIMENTAL_EIPS ->
-          new PragueEOFGasCalculator();
+      case OSAKA -> new OsakaGasCalculator();
+      case AMSTERDAM, BOGOTA, POLIS, BANGKOK, FUTURE_EIPS, EXPERIMENTAL_EIPS ->
+          new OsakaGasCalculator();
     };
   }
 
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/prague-eof-rjump.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/osaka-eof-rjump.json
similarity index 92%
rename from ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/prague-eof-rjump.json
rename to ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/osaka-eof-rjump.json
index b9d2e541795..8cca437e349 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/prague-eof-rjump.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/block-test/osaka-eof-rjump.json
@@ -4,13 +4,13 @@
     "stdin"
   ],
   "stdin": {
-    "tests/prague/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_PragueEIP7692-blockchain_test]": {
-      "network": "Prague",
+    "tests/osaka/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_Osaka-blockchain_test]": {
+      "network": "Osaka",
       "genesisBlockHeader": {
         "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "uncleHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
         "coinbase": "0x0000000000000000000000000000000000000000",
-        "stateRoot": "0x34ccf8774a5b8833da9451a3f7f8a0af0147956c058f0831dab07c348d7ac0d9",
+        "stateRoot": "0xbeb30acb62768b375f7e7d36f6ba9240cb692ebd0ee04c9321c756cf4ff1c437",
         "transactionsTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         "receiptTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         "bloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -28,7 +28,7 @@
         "excessBlobGas": "0x00",
         "parentBeaconBlockRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "requestsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
-        "hash": "0xc9397e8a1b99cbb2b885852fde56de8fa686091a4f4430163f5237d7aaf33a14"
+        "hash": "0x367310df4a31070aa9a5c92cb61ab8bb2742db0162619ed77594fbec6f0ddbd9"
       },
       "pre": {
         "0x00000000219ab540356cbb839cbe05303d7705fa": {
@@ -75,6 +75,12 @@
           "code": "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",
           "storage": {}
         },
+        "0x00b42dbf2194e931e80326d950320f7d9dbeac02": {
+          "nonce": "0x01",
+          "balance": "0x00",
+          "code": "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",
+          "storage": {}
+        },
         "0x0aae40965e6800cd9b1f4b05ff21581047e3f91e": {
           "nonce": "0x01",
           "balance": "0x00",
@@ -161,12 +167,18 @@
           "code": "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",
           "storage": {}
         },
+        "0x00b42dbf2194e931e80326d950320f7d9dbeac02": {
+          "nonce": "0x01",
+          "balance": "0x00",
+          "code": "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",
+          "storage": {}
+        },
         "0x0aae40965e6800cd9b1f4b05ff21581047e3f91e": {
           "nonce": "0x01",
           "balance": "0x00",
           "code": "0x3373fffffffffffffffffffffffffffffffffffffffe1460575767ffffffffffffffff5f3511605357600143035f3511604b575f35612000014311604b57611fff5f3516545f5260205ff35b5f5f5260205ff35b5f5ffd5b5f35611fff60014303165500",
           "storage": {
-            "0x00": "0xc9397e8a1b99cbb2b885852fde56de8fa686091a4f4430163f5237d7aaf33a14"
+            "0x00": "0x367310df4a31070aa9a5c92cb61ab8bb2742db0162619ed77594fbec6f0ddbd9"
           }
         },
         "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba": {
@@ -182,14 +194,15 @@
           "storage": {}
         }
       },
-      "genesisRLP": "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",
+      "lastblockhash": "0xfb5d1d0e218fa7873bc188f07f3e0a7c78027ff6e6e199c48ba1facd3c3726fd",
+      "genesisRLP": "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",
       "blocks": [
         {
           "blockHeader": {
-            "parentHash": "0xc9397e8a1b99cbb2b885852fde56de8fa686091a4f4430163f5237d7aaf33a14",
+            "parentHash": "0x367310df4a31070aa9a5c92cb61ab8bb2742db0162619ed77594fbec6f0ddbd9",
             "uncleHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
             "coinbase": "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
-            "stateRoot": "0x1a4885d1f64bac16e5ab17fb13e23fb5d1a0ec2ca4519c81714683f69c8d9a84",
+            "stateRoot": "0x4ab70cbe1abe50d6bb3c8cdb3e9e66111f142cd68ab73870e9ce9e0dd1d6ead2",
             "transactionsTrie": "0xec9d10cff79619f2df45db8c66526ef3fbd32d283fdd2dcc9b55c0efe643d8c3",
             "receiptTrie": "0x9593f56abf23bcbb26d27b0c6e46a56415d9103ed6b4d8ac7b4182f9f250cafa",
             "bloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -207,7 +220,7 @@
             "excessBlobGas": "0x00",
             "parentBeaconBlockRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
             "requestsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
-            "hash": "0x879cf54bf493b6585db592b1b24ec30a8a7fbe3b9146d3fb20ca36200f2aca87"
+            "hash": "0xfb5d1d0e218fa7873bc188f07f3e0a7c78027ff6e6e199c48ba1facd3c3726fd"
           },
           "transactions": [
             {
@@ -229,22 +242,22 @@
           "withdrawals": [],
           "depositRequests": [],
           "withdrawalRequests": [],
-          "rlp": "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",
+          "consolidationRequests": [],
+          "rlp": "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",
           "blocknumber": "1"
         }
       ],
-      "lastblockhash": "0x879cf54bf493b6585db592b1b24ec30a8a7fbe3b9146d3fb20ca36200f2aca87",
       "sealEngine": "NoProof",
       "_info": {
-        "hash": "0xbfd1223f9b5b8dbf202178f7c1f18dc089cb24e54c9cb7fc9831907547e937c4",
+        "hash": "0xd0cc15d832c8c0b9cf5bdc0eab79c3b632193a11fde3d5ef32bb07e8c65ba6bd",
         "comment": "`execution-spec-tests` generated test",
-        "filling-transition-tool": "Hyperledger Besu evm 24.7-develop-8ca7129",
+        "filling-transition-tool": "Hyperledger Besu evm 24.9-develop-0d63955",
         "description": "Test function documentation:\nEOF1V4200_0002 (Valid) EOF code containing RJUMP (Zero)",
-        "url": "https://github.com/ethereum/execution-spec-tests/blob/891a6111370c89d4ce89bf91589c6d5ff6785158/tests/prague/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py#L63",
+        "url": "https://github.com/ethereum/execution-spec-tests/blob/96efd737b258eeb8efb615e9123d931b6dfda302/tests/osaka/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py#L44",
         "reference-spec": "https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4200.md",
         "reference-spec-version": "17d4a8d12d2b5e0f2985c866376c16c8c6df7cba"
       }
     }
   },
-  "stdout": "Considering tests/prague/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_PragueEIP7692-blockchain_test]\nBlock 1 (0x879cf54bf493b6585db592b1b24ec30a8a7fbe3b9146d3fb20ca36200f2aca87) Imported\nChain import successful - tests/prague/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_PragueEIP7692-blockchain_test]\n"
+  "stdout": "Considering tests/osaka/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_Osaka-blockchain_test]\nBlock 1 (0xfb5d1d0e218fa7873bc188f07f3e0a7c78027ff6e6e199c48ba1facd3c3726fd) Imported\nChain import successful - tests/osaka/eip7692_eof_v1/eip4200_relative_jumps/test_rjump.py::test_rjump_zero[fork_Osaka-blockchain_test]\n"
 }
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-eof.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-eof.json
index e924043042e..72ada37da7b 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-eof.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-eof.json
@@ -45,7 +45,7 @@
       },
       "out": "0x",
       "post": {
-        "CancunEOF": [
+        "Osaka": [
           {
             "hash": "0x1a8642a04dae90535f00f53d3a30284c4db051d508a653db89eb100ba9aecbf3",
             "logs": "0xf48b954a6a6f4ce6b28e4950b7027413f4bdc8f459df6003b6e8d7a1567c8940",
@@ -79,7 +79,7 @@
     {"pc":5,"section":0,"op":95,"gas":"0x793d71","gasCost":"0x2","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH0"},
     {"pc":6,"section":0,"op":95,"gas":"0x793d6f","gasCost":"0x2","memSize":0,"stack":["0x0"],"depth":1,"refund":0,"opName":"PUSH0"},
     {"pc":7,"section":0,"op":238,"immediate":"0x00","gas":"0x793d6d","gasCost":"0x0","memSize":0,"stack":["0x0","0x0"],"depth":1,"refund":0,"opName":"RETURNCONTRACT"},
-    {"output":"","gasUsed":"0xe433","test":"create-eof","fork":"CancunEOF","d":0,"g":0,"v":0,"postHash":"0x1a8642a04dae90535f00f53d3a30284c4db051d508a653db89eb100ba9aecbf3","postLogsHash":"0xf48b954a6a6f4ce6b28e4950b7027413f4bdc8f459df6003b6e8d7a1567c8940","pass":true},
+    {"output":"","gasUsed":"0xe433","test":"create-eof","fork":"Osaka","d":0,"g":0,"v":0,"postHash":"0x1a8642a04dae90535f00f53d3a30284c4db051d508a653db89eb100ba9aecbf3","postLogsHash":"0xf48b954a6a6f4ce6b28e4950b7027413f4bdc8f459df6003b6e8d7a1567c8940","pass":true},
     {"pc":0,"op":239,"gas":"0x794068","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"INVALID","error":"Bad instruction"},
     {"output":"","gasUsed":"0x7a1200","test":"create-eof","fork":"Cancun","d":0,"g":0,"v":0,"postHash":"0xaa80d89bc89f58da8de41d3894bd1a241896ff91f7a5964edaefb39e8e3a4a98","postLogsHash":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347","pass":true,"error":"INVALID_OPERATION"}
   ]
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-invalid-eof.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-invalid-eof.json
index e2eb67602e9..f3448aa5a27 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-invalid-eof.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/state-test/create-invalid-eof.json
@@ -45,7 +45,7 @@
       },
       "out": "0x",
       "post": {
-        "Prague": [
+        "Osaka": [
           {
             "hash": "0x1a8642a04dae90535f00f53d3a30284c4db051d508a653db89eb100ba9aecbf3",
             "logs": "0xf48b954a6a6f4ce6b28e4950b7027413f4bdc8f459df6003b6e8d7a1567c8940",
@@ -71,7 +71,7 @@
     }
   },
   "stdout": [
-    {"output":"","gasUsed":"0xd198","test":"create-eof","fork":"Prague","d":0,"g":0,"v":0,"postHash":"0x2a9c58298ba5d4ec86ca682b9fcc9ff67c3fc44dbd39f85a2f9b74bfe4e5178e","postLogsHash":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347","pass":false,"error":"Invalid EOF Layout: unexpected_header_kind expected 1 actual 17"},
+    {"output":"","gasUsed":"0xd198","test":"create-eof","fork":"Osaka","d":0,"g":0,"v":0,"postHash":"0x2a9c58298ba5d4ec86ca682b9fcc9ff67c3fc44dbd39f85a2f9b74bfe4e5178e","postLogsHash":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347","pass":false,"error":"Invalid EOF Layout: unexpected_header_kind expected 1 actual 17"},
     {"pc":0,"op":239,"gas":"0x794068","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"INVALID","error":"Bad instruction"},
     {"output":"","gasUsed":"0x7a1200","test":"create-eof","fork":"Cancun","d":0,"g":0,"v":0,"postHash":"0xaa80d89bc89f58da8de41d3894bd1a241896ff91f7a5964edaefb39e8e3a4a98","postLogsHash":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347","pass":true,"error":"INVALID_OPERATION"}
   ]
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof-error.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof-error.json
index cd4c3fa14a1..0b1396f261b 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof-error.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof-error.json
@@ -8,7 +8,7 @@
     "--coinbase",
     "4444588443C3A91288C5002483449ABA1054192B",
     "--fork",
-    "CancunEOF"
+    "Osaka"
   ],
   "stdin": "",
   "stdout": "EOF Code Invalid : incompatible_container_kind opcode STOP is only valid for runtime.\n"
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof.json
index 1fa459916b6..6740c86719d 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/create-eof.json
@@ -8,7 +8,7 @@
     "--coinbase",
     "4444588443C3A91288C5002483449ABA1054192B",
     "--fork",
-    "CancunEOF"
+    "Osaka"
   ],
   "stdin": "",
   "stdout": [
@@ -20,6 +20,6 @@
     {"pc":5,"section":0,"op":95,"gas":"0x2540be109","gasCost":"0x2","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH0"},
     {"pc":6,"section":0,"op":95,"gas":"0x2540be107","gasCost":"0x2","memSize":0,"stack":["0x0"],"depth":1,"refund":0,"opName":"PUSH0"},
     {"pc":7,"section":0,"op":238,"immediate":"0x00","gas":"0x2540be105","gasCost":"0x0","memSize":0,"stack":["0x0","0x0"],"depth":1,"refund":0,"opName":"RETURNCONTRACT"},
-    {"stateRoot":"0x9790b070a5749acec6a7252a867f795df3c2cb5b800fb509ea259a1c0b5d96c1","output":"0x","gasUsed":"0x129b","pass":true,"fork":"CancunEOF"}
+    {"stateRoot":"0x9790b070a5749acec6a7252a867f795df3c2cb5b800fb509ea259a1c0b5d96c1","output":"0x","gasUsed":"0x129b","pass":true,"fork":"Osaka"}
   ]
 }
\ No newline at end of file
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof-section.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof-section.json
index 439c69195a2..f25557fa7e0 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof-section.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof-section.json
@@ -7,17 +7,17 @@
     "--coinbase",
     "4444588443C3A91288C5002483449ABA1054192B",
     "--fork",
-    "PragueEOF"
+    "Osaka"
   ],
   "stdin": "",
   "stdout": [
     {"pc":0,"section":0,"op":227,"immediate":"0x0002","gas":"0x2540be400","gasCost":"0x5","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"CALLF"},
-    {"pc":0,"section":2,"op":229,"immediate":"0x0002","gas":"0x2540be3fb","gasCost":"0x5","memSize":0,"stack":[],"depth":1,"functionDepth":1,"refund":0,"opName":"JUMPF"},
-    {"pc":0,"section":1,"op":228,"gas":"0x2540be3f6","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"functionDepth":1,"refund":0,"opName":"RETF"},
+    {"pc":11,"section":2,"op":229,"immediate":"0x0001","gas":"0x2540be3fb","gasCost":"0x5","memSize":0,"stack":[],"depth":1,"functionDepth":1,"refund":0,"opName":"JUMPF"},
+    {"pc":10,"section":1,"op":228,"gas":"0x2540be3f6","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"functionDepth":1,"refund":0,"opName":"RETF"},
     {"pc":3,"section":0,"op":97,"immediate":"0x2015","gas":"0x2540be3f3","gasCost":"0x3","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"PUSH2"},
     {"pc":6,"section":0,"op":96,"immediate":"0x01","gas":"0x2540be3f0","gasCost":"0x3","memSize":0,"stack":["0x2015"],"depth":1,"refund":0,"opName":"PUSH1"},
     {"pc":8,"section":0,"op":85,"gas":"0x2540be3ed","gasCost":"0x5654","memSize":0,"stack":["0x2015","0x1"],"depth":1,"refund":0,"opName":"SSTORE"},
     {"pc":9,"section":0,"op":0,"gas":"0x2540b8d99","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"STOP"},
-    {"stateRoot":"0x761f723ceabb467d438fe74abf025c10bf65592b84ec389850038eb572f2b0fa","output":"0x","gasUsed":"0x5667","pass":true,"fork":"PragueEOF"}
+    {"stateRoot":"0x761f723ceabb467d438fe74abf025c10bf65592b84ec389850038eb572f2b0fa","output":"0x","gasUsed":"0x5667","pass":true,"fork":"Osaka"}
   ]
 }
\ No newline at end of file
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof.json
index c9553c92091..ddce2bf2aff 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/eof.json
@@ -7,11 +7,11 @@
     "--coinbase",
     "4444588443C3A91288C5002483449ABA1054192B",
     "--fork",
-    "PragueEOF"
+    "Osaka"
   ],
   "stdin": "",
   "stdout": [
     {"pc":0,"section":0,"op":0,"gas":"0x2540be400","gasCost":"0x0","memSize":0,"stack":[],"depth":1,"refund":0,"opName":"STOP"},
-    {"stateRoot":"0xdae5f2c233bf9fbb7413d06ce744a3345dbf971b5bb5638736c0388f43a61a4b","output":"0x","gasUsed":"0x0","pass":true,"fork":"PragueEOF"}
+    {"stateRoot":"0xdae5f2c233bf9fbb7413d06ce744a3345dbf971b5bb5638736c0388f43a61a4b","output":"0x","gasUsed":"0x0","pass":true,"fork":"Osaka"}
   ]
 }
\ No newline at end of file
diff --git a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/initcode-error.json b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/initcode-error.json
index b88134778ec..4225259fa42 100644
--- a/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/initcode-error.json
+++ b/ethereum/evmtool/src/test/resources/org/hyperledger/besu/evmtool/trace/initcode-error.json
@@ -7,7 +7,7 @@
     "--coinbase",
     "4444588443C3A91288C5002483449ABA1054192B",
     "--fork",
-    "CancunEOF"
+    "Osaka"
   ],
   "stdin": "",
   "stdout": "To evaluate INITCODE mode EOF code use the --create flag\n"
diff --git a/ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestProtocolSchedules.java b/ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestProtocolSchedules.java
index bcdf5e25d5b..976c8e70d29 100644
--- a/ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestProtocolSchedules.java
+++ b/ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestProtocolSchedules.java
@@ -105,8 +105,15 @@ public static ReferenceTestProtocolSchedules create(final StubGenesisConfigOptio
                 Map.entry(
                     "CancunToPragueAtTime15k",
                     createSchedule(genesisStub.clone().cancunTime(0).pragueTime(15000))),
-                Map.entry("Prague", createSchedule(genesisStub.clone().pragueEOFTime(0))),
-                Map.entry("Osaka", createSchedule(genesisStub.clone().futureEipsTime(0))),
+                Map.entry(
+                    "Prague",
+                    createSchedule(
+                        genesisStub
+                            .clone()
+                            .pragueTime(0)
+                            .osakaTime(0) // TODO remove this once osaka_devnet_0 ships
+                        )),
+                Map.entry("Osaka", createSchedule(genesisStub.clone().osakaTime(0))),
                 Map.entry("Amsterdam", createSchedule(genesisStub.clone().futureEipsTime(0))),
                 Map.entry("Bogota", createSchedule(genesisStub.clone().futureEipsTime(0))),
                 Map.entry("Polis", createSchedule(genesisStub.clone().futureEipsTime(0))),
diff --git a/ethereum/referencetests/src/reference-test/java/org/hyperledger/besu/ethereum/eof/EOFReferenceTestTools.java b/ethereum/referencetests/src/reference-test/java/org/hyperledger/besu/ethereum/eof/EOFReferenceTestTools.java
index 6a736831ff4..334bb0be33b 100644
--- a/ethereum/referencetests/src/reference-test/java/org/hyperledger/besu/ethereum/eof/EOFReferenceTestTools.java
+++ b/ethereum/referencetests/src/reference-test/java/org/hyperledger/besu/ethereum/eof/EOFReferenceTestTools.java
@@ -15,6 +15,7 @@
 package org.hyperledger.besu.ethereum.eof;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.fail;
 
 import java.nio.file.Path;
 import java.util.Arrays;
@@ -33,6 +34,7 @@
 import org.hyperledger.besu.evm.Code;
 import org.hyperledger.besu.evm.EVM;
 import org.hyperledger.besu.evm.code.CodeInvalid;
+import org.hyperledger.besu.evm.code.CodeV1;
 import org.hyperledger.besu.evm.code.EOFLayout;
 import org.hyperledger.besu.testutil.JsonTestParameters;
 
@@ -41,7 +43,7 @@ public class EOFReferenceTestTools {
 
   static {
     final String eips =
-        System.getProperty("test.ethereum.eof.eips", "Prague,Osaka,Amsterdam,Bogota,Polis,Bangkok");
+        System.getProperty("test.ethereum.eof.eips", "Osaka,Amsterdam,Bogota,Polis,Bangkok");
     EIPS_TO_RUN = Arrays.asList(eips.split(","));
   }
 
@@ -79,6 +81,10 @@ public class EOFReferenceTestTools {
     if (EIPS_TO_RUN.isEmpty()) {
       params.ignoreAll();
     }
+
+    // EOF was moved from Prague to Osaka
+    params.ignore("-Prague\\[");
+
   }
 
   private EOFReferenceTestTools() {
@@ -132,28 +138,37 @@ public static void executeTest(
         } else {
           parsedCode = evm.getCodeUncached(code);
         }
+
         if (expected.result()) {
           assertThat(parsedCode.isValid())
               .withFailMessage(
                   () -> "Valid code failed with " + ((CodeInvalid) parsedCode).getInvalidReason())
               .isTrue();
-        } else {
-          assertThat(parsedCode.isValid())
-              .withFailMessage("Invalid code expected " + expected.exception() + " but was valid")
-              .isFalse();
-          if (name.contains("eip7692")) {
-            // if the test is from EEST, validate the exception name.
-            assertThat(((CodeInvalid) parsedCode).getInvalidReason())
-                .withFailMessage(
-                    () ->
-                        "Expected exception :%s actual exception: %s"
-                            .formatted(
-                                expected.exception(),
-                                (parsedCode.isValid()
-                                    ? null
-                                    : ((CodeInvalid) parsedCode).getInvalidReason())))
-                .containsIgnoringCase(expected.exception().replace("EOFException.", ""));
+        } else if (parsedCode.isValid()) {
+          if (parsedCode instanceof CodeV1 codeV1
+              && expected.exception().contains("EOF_IncompatibleContainerKind")) {
+            // one last container type check
+            var parsedMode = codeV1.getEofLayout().containerMode().get();
+            String actual = parsedMode == null ? "RUNTIME" : parsedMode.toString();
+            String expectedContainerKind = containerKind == null ? "RUNTIME" : containerKind;
+            assertThat(actual)
+                .withFailMessage("EOF_IncompatibleContainerKind expected")
+                .isNotEqualTo(expectedContainerKind);
+          } else {
+            fail("Invalid code expected " + expected.exception() + " but was valid");
           }
+        } else if (name.contains("eip7692")) {
+          // if the test is from EEST, validate the exception name.
+          assertThat(((CodeInvalid) parsedCode).getInvalidReason())
+              .withFailMessage(
+                  () ->
+                      "Expected exception :%s actual exception: %s"
+                          .formatted(
+                              expected.exception(),
+                              (parsedCode.isValid()
+                                  ? null
+                                  : ((CodeInvalid) parsedCode).getInvalidReason())))
+              .containsIgnoringCase(expected.exception().replace("EOFException.", ""));
         }
       } else {
         assertThat(false)
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/EvmSpecVersion.java b/evm/src/main/java/org/hyperledger/besu/evm/EvmSpecVersion.java
index 7d4344c6bcf..d675496d7a5 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/EvmSpecVersion.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/EvmSpecVersion.java
@@ -55,8 +55,6 @@ public enum EvmSpecVersion {
   CANCUN_EOF(MainnetHardforkId.CANCUN_EOF, 0x6000, 0xc000, 1),
   /** Prague evm spec version. */
   PRAGUE(MainnetHardforkId.PRAGUE, 0x6000, 0xc000, 0),
-  /** PragueEOF evm spec version. */
-  PRAGUE_EOF(MainnetHardforkId.PRAGUE_EOF, 0x6000, 0xc000, 1),
   /** Osaka evm spec version. */
   OSAKA(MainnetHardforkId.OSAKA, 0x6000, 0xc000, 1),
   /** Amsterdam evm spec version. */
@@ -183,11 +181,11 @@ public void maybeWarnVersion() {
    * @return the EVM spec version for that fork, or null if no fork matched.
    */
   public static EvmSpecVersion fromName(final String name) {
-    // TODO remove once PragueEOF settles
+    // TODO remove once CancunEOF tests are removed from EEST
     if ("prague".equalsIgnoreCase(name)) {
-      return EvmSpecVersion.PRAGUE_EOF;
+      return EvmSpecVersion.OSAKA;
     }
-    // TODO remove once PragueEOF settles
+    // TODO remove once CancunEOF tests are removed from EEST
     if ("cancuneof".equalsIgnoreCase(name)) {
       return EvmSpecVersion.CANCUN_EOF;
     }
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/MainnetEVMs.java b/evm/src/main/java/org/hyperledger/besu/evm/MainnetEVMs.java
index 998776d7140..482a34209e7 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/MainnetEVMs.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/MainnetEVMs.java
@@ -23,8 +23,8 @@
 import org.hyperledger.besu.evm.gascalculator.HomesteadGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.IstanbulGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.LondonGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PetersburgGasCalculator;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.PragueGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.ShanghaiGasCalculator;
 import org.hyperledger.besu.evm.gascalculator.SpuriousDragonGasCalculator;
@@ -1025,72 +1025,70 @@ public static void registerPragueOperations(
       final GasCalculator gasCalculator,
       final BigInteger chainID) {
     registerCancunOperations(registry, gasCalculator, chainID);
-
-    // TODO add EOF operations here once PragueEOF is collapsed into Prague
   }
 
   /**
-   * PragueEOF evm.
+   * Osaka evm.
    *
    * @param evmConfiguration the evm configuration
    * @return the evm
    */
-  public static EVM pragueEOF(final EvmConfiguration evmConfiguration) {
-    return pragueEOF(DEV_NET_CHAIN_ID, evmConfiguration);
+  public static EVM osaka(final EvmConfiguration evmConfiguration) {
+    return osaka(DEV_NET_CHAIN_ID, evmConfiguration);
   }
 
   /**
-   * PragueEOF evm.
+   * Osaka evm.
    *
    * @param chainId the chain id
    * @param evmConfiguration the evm configuration
    * @return the evm
    */
-  public static EVM pragueEOF(final BigInteger chainId, final EvmConfiguration evmConfiguration) {
-    return pragueEOF(new PragueEOFGasCalculator(), chainId, evmConfiguration);
+  public static EVM osaka(final BigInteger chainId, final EvmConfiguration evmConfiguration) {
+    return osaka(new OsakaGasCalculator(), chainId, evmConfiguration);
   }
 
   /**
-   * PragueEOF evm.
+   * Osaka evm.
    *
    * @param gasCalculator the gas calculator
    * @param chainId the chain id
    * @param evmConfiguration the evm configuration
    * @return the evm
    */
-  public static EVM pragueEOF(
+  public static EVM osaka(
       final GasCalculator gasCalculator,
       final BigInteger chainId,
       final EvmConfiguration evmConfiguration) {
     return new EVM(
-        pragueEOFOperations(gasCalculator, chainId),
+        osakaOperations(gasCalculator, chainId),
         gasCalculator,
         evmConfiguration,
-        EvmSpecVersion.PRAGUE_EOF);
+        EvmSpecVersion.OSAKA);
   }
 
   /**
-   * Operation registry for PragueEOF's operations.
+   * Operation registry for Osaka's operations.
    *
    * @param gasCalculator the gas calculator
    * @param chainId the chain id
    * @return the operation registry
    */
-  public static OperationRegistry pragueEOFOperations(
+  public static OperationRegistry osakaOperations(
       final GasCalculator gasCalculator, final BigInteger chainId) {
     OperationRegistry operationRegistry = new OperationRegistry();
-    registerPragueEOFOperations(operationRegistry, gasCalculator, chainId);
+    registerOsakaOperations(operationRegistry, gasCalculator, chainId);
     return operationRegistry;
   }
 
   /**
-   * Register PragueEOF's operations.
+   * Register Osaka's operations.
    *
    * @param registry the registry
    * @param gasCalculator the gas calculator
    * @param chainID the chain id
    */
-  public static void registerPragueEOFOperations(
+  public static void registerOsakaOperations(
       final OperationRegistry registry,
       final GasCalculator gasCalculator,
       final BigInteger chainID) {
@@ -1140,74 +1138,6 @@ private static void registerEOFOperations(
     registry.put(new ReturnContractOperation(gasCalculator));
   }
 
-  /**
-   * Osaka evm.
-   *
-   * @param evmConfiguration the evm configuration
-   * @return the evm
-   */
-  public static EVM osaka(final EvmConfiguration evmConfiguration) {
-    return osaka(DEV_NET_CHAIN_ID, evmConfiguration);
-  }
-
-  /**
-   * Osaka evm.
-   *
-   * @param chainId the chain id
-   * @param evmConfiguration the evm configuration
-   * @return the evm
-   */
-  public static EVM osaka(final BigInteger chainId, final EvmConfiguration evmConfiguration) {
-    return osaka(new PragueGasCalculator(), chainId, evmConfiguration);
-  }
-
-  /**
-   * Osaka evm.
-   *
-   * @param gasCalculator the gas calculator
-   * @param chainId the chain id
-   * @param evmConfiguration the evm configuration
-   * @return the evm
-   */
-  public static EVM osaka(
-      final GasCalculator gasCalculator,
-      final BigInteger chainId,
-      final EvmConfiguration evmConfiguration) {
-    return new EVM(
-        osakaOperations(gasCalculator, chainId),
-        gasCalculator,
-        evmConfiguration,
-        EvmSpecVersion.OSAKA);
-  }
-
-  /**
-   * Operation registry for osaka's operations.
-   *
-   * @param gasCalculator the gas calculator
-   * @param chainId the chain id
-   * @return the operation registry
-   */
-  public static OperationRegistry osakaOperations(
-      final GasCalculator gasCalculator, final BigInteger chainId) {
-    OperationRegistry operationRegistry = new OperationRegistry();
-    registerOsakaOperations(operationRegistry, gasCalculator, chainId);
-    return operationRegistry;
-  }
-
-  /**
-   * Register osaka operations.
-   *
-   * @param registry the registry
-   * @param gasCalculator the gas calculator
-   * @param chainID the chain id
-   */
-  public static void registerOsakaOperations(
-      final OperationRegistry registry,
-      final GasCalculator gasCalculator,
-      final BigInteger chainID) {
-    registerPragueEOFOperations(registry, gasCalculator, chainID);
-  }
-
   /**
    * Amsterdam evm.
    *
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/fluent/EVMExecutor.java b/evm/src/main/java/org/hyperledger/besu/evm/fluent/EVMExecutor.java
index a182ae9454d..fbf62f3e417 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/fluent/EVMExecutor.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/fluent/EVMExecutor.java
@@ -164,7 +164,6 @@ public static EVMExecutor evm(
       case CANCUN -> cancun(chainId, evmConfiguration);
       case CANCUN_EOF -> cancunEOF(chainId, evmConfiguration);
       case PRAGUE -> prague(chainId, evmConfiguration);
-      case PRAGUE_EOF -> pragueEOF(chainId, evmConfiguration);
       case OSAKA -> osaka(chainId, evmConfiguration);
       case AMSTERDAM -> amsterdam(chainId, evmConfiguration);
       case BOGOTA -> bogota(chainId, evmConfiguration);
@@ -525,21 +524,6 @@ public static EVMExecutor prague(
     return executor;
   }
 
-  /**
-   * Instantiate PragueEOF evm executor.
-   *
-   * @param chainId the chain ID
-   * @param evmConfiguration the evm configuration
-   * @return the evm executor
-   */
-  public static EVMExecutor pragueEOF(
-      final BigInteger chainId, final EvmConfiguration evmConfiguration) {
-    final EVMExecutor executor = new EVMExecutor(MainnetEVMs.pragueEOF(chainId, evmConfiguration));
-    executor.precompileContractRegistry =
-        MainnetPrecompiledContracts.prague(executor.evm.getGasCalculator());
-    return executor;
-  }
-
   /**
    * Instantiate Osaka evm executor.
    *
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculator.java b/evm/src/main/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculator.java
similarity index 89%
rename from evm/src/main/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculator.java
rename to evm/src/main/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculator.java
index 5fa2fe87257..b4155dac52a 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculator.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculator.java
@@ -26,13 +26,13 @@
  *   <LI>TBD
  * </UL>
  */
-public class PragueEOFGasCalculator extends PragueGasCalculator {
+public class OsakaGasCalculator extends PragueGasCalculator {
 
   static final long MIN_RETAINED_GAS = 5_000;
   static final long MIN_CALLEE_GAS = 2300;
 
   /** Instantiates a new Prague Gas Calculator. */
-  public PragueEOFGasCalculator() {
+  public OsakaGasCalculator() {
     this(BLS12_MAP_FP2_TO_G2.toArrayUnsafe()[19]);
   }
 
@@ -41,7 +41,7 @@ public PragueEOFGasCalculator() {
    *
    * @param maxPrecompile the max precompile
    */
-  protected PragueEOFGasCalculator(final int maxPrecompile) {
+  protected OsakaGasCalculator(final int maxPrecompile) {
     super(maxPrecompile);
   }
 
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/operation/AbstractExtCallOperation.java b/evm/src/main/java/org/hyperledger/besu/evm/operation/AbstractExtCallOperation.java
index c82e8c1633d..7a0296bf56e 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/operation/AbstractExtCallOperation.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/operation/AbstractExtCallOperation.java
@@ -109,15 +109,16 @@ public OperationResult execute(final MessageFrame frame, final EVM evm) {
     long inputOffset = inputDataOffset(frame);
     long inputLength = inputDataLength(frame);
 
+    GasCalculator gasCalculator = gasCalculator();
     if (!zeroValue && isStatic(frame)) {
       return new OperationResult(
-          gasCalculator().callValueTransferGasCost(), ExceptionalHaltReason.ILLEGAL_STATE_CHANGE);
+          gasCalculator.callValueTransferGasCost(), ExceptionalHaltReason.ILLEGAL_STATE_CHANGE);
     }
     if (toBytes.size() > Address.SIZE) {
       return new OperationResult(
-          gasCalculator().memoryExpansionGasCost(frame, inputOffset, inputLength)
-              + (zeroValue ? 0 : gasCalculator().callValueTransferGasCost())
-              + gasCalculator().getColdAccountAccessCost(),
+          gasCalculator.memoryExpansionGasCost(frame, inputOffset, inputLength)
+              + (zeroValue ? 0 : gasCalculator.callValueTransferGasCost())
+              + gasCalculator.getColdAccountAccessCost(),
           ExceptionalHaltReason.ADDRESS_OUT_OF_RANGE);
     }
     Address to = Words.toAddress(toBytes);
@@ -125,7 +126,7 @@ public OperationResult execute(final MessageFrame frame, final EVM evm) {
 
     if (contract != null) {
       final DelegatedCodeGasCostHelper.Result result =
-          deductDelegatedCodeGasCost(frame, gasCalculator(), contract);
+          deductDelegatedCodeGasCost(frame, gasCalculator, contract);
       if (result.status() != DelegatedCodeGasCostHelper.Status.SUCCESS) {
         return new Operation.OperationResult(
             result.gasCost(), ExceptionalHaltReason.INSUFFICIENT_GAS);
@@ -134,12 +135,12 @@ public OperationResult execute(final MessageFrame frame, final EVM evm) {
 
     boolean accountCreation = contract == null && !zeroValue;
     long cost =
-        gasCalculator().memoryExpansionGasCost(frame, inputOffset, inputLength)
-            + (zeroValue ? 0 : gasCalculator().callValueTransferGasCost())
-            + (frame.warmUpAddress(to)
-                ? gasCalculator().getWarmStorageReadCost()
-                : gasCalculator().getColdAccountAccessCost())
-            + (accountCreation ? gasCalculator().newAccountGasCost() : 0);
+        gasCalculator.memoryExpansionGasCost(frame, inputOffset, inputLength)
+            + (zeroValue ? 0 : gasCalculator.callValueTransferGasCost())
+            + (frame.warmUpAddress(to) || gasCalculator.isPrecompile(to)
+                ? gasCalculator.getWarmStorageReadCost()
+                : gasCalculator.getColdAccountAccessCost())
+            + (accountCreation ? gasCalculator.newAccountGasCost() : 0);
     long currentGas = frame.getRemainingGas() - cost;
     if (currentGas < 0) {
       return new OperationResult(cost, ExceptionalHaltReason.INSUFFICIENT_GAS);
@@ -163,14 +164,14 @@ public OperationResult execute(final MessageFrame frame, final EVM evm) {
       return softFailure(frame, cost);
     }
 
-    long retainedGas = Math.max(currentGas / 64, gasCalculator().getMinRetainedGas());
+    long retainedGas = Math.max(currentGas / 64, gasCalculator.getMinRetainedGas());
     long childGas = currentGas - retainedGas;
 
     final Account account = frame.getWorldUpdater().get(frame.getRecipientAddress());
     final Wei balance = (zeroValue || account == null) ? Wei.ZERO : account.getBalance();
 
     // There myst be a minimum gas for a call to have access to.
-    if (childGas < gasCalculator().getMinCalleeGas()) {
+    if (childGas < gasCalculator.getMinCalleeGas()) {
       return softFailure(frame, cost);
     }
     // transferring value you don't have is not a halting exception, just a failure
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/operation/CallFOperation.java b/evm/src/main/java/org/hyperledger/besu/evm/operation/CallFOperation.java
index c6990634155..e1eb96f035d 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/operation/CallFOperation.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/operation/CallFOperation.java
@@ -17,6 +17,7 @@
 import org.hyperledger.besu.evm.Code;
 import org.hyperledger.besu.evm.EVM;
 import org.hyperledger.besu.evm.code.CodeSection;
+import org.hyperledger.besu.evm.frame.ExceptionalHaltReason;
 import org.hyperledger.besu.evm.frame.MessageFrame;
 import org.hyperledger.besu.evm.gascalculator.GasCalculator;
 import org.hyperledger.besu.evm.internal.ReturnStack;
@@ -30,6 +31,9 @@ public class CallFOperation extends AbstractOperation {
   /** The Call F success. */
   static final OperationResult callfSuccess = new OperationResult(5, null);
 
+  static final OperationResult callfStackOverflow =
+      new OperationResult(5, ExceptionalHaltReason.TOO_MANY_STACK_ITEMS);
+
   /**
    * Instantiates a new Call F operation.
    *
@@ -49,6 +53,11 @@ public OperationResult execute(final MessageFrame frame, final EVM evm) {
     int pc = frame.getPC();
     int section = code.readBigEndianU16(pc + 1);
     CodeSection info = code.getCodeSection(section);
+    int operandStackSize = frame.stackSize();
+    if (operandStackSize >= 1024
+        || operandStackSize > 1024 - info.getMaxStackHeight() + info.getInputs()) {
+      return callfStackOverflow;
+    }
     frame.getReturnStack().push(new ReturnStack.ReturnStackItem(frame.getSection(), pc + 2));
     frame.setPC(info.getEntryPoint() - 1); // will be +1ed at end of operations loop
     frame.setSection(section);
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/tracing/StandardJsonTracer.java b/evm/src/main/java/org/hyperledger/besu/evm/tracing/StandardJsonTracer.java
index a289c665d2d..baf052ba4eb 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/tracing/StandardJsonTracer.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/tracing/StandardJsonTracer.java
@@ -127,9 +127,7 @@ public void tracePreExecution(final MessageFrame messageFrame) {
     for (int i = messageFrame.stackSize() - 1; i >= 0; i--) {
       stack.add("\"" + shortBytes(messageFrame.getStackItem(i)) + "\"");
     }
-    pc =
-        messageFrame.getPC()
-            - messageFrame.getCode().getCodeSection(messageFrame.getSection()).getEntryPoint();
+    pc = messageFrame.getPC() - messageFrame.getCode().getCodeSection(0).getEntryPoint();
     section = messageFrame.getSection();
     gas = shortNumber(messageFrame.getRemainingGas());
     memorySize = messageFrame.memoryWordSize() * 32;
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/code/CodeFactoryTest.java b/evm/src/test/java/org/hyperledger/besu/evm/code/CodeFactoryTest.java
index 6f60ab7865b..ac27d3f21e4 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/code/CodeFactoryTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/code/CodeFactoryTest.java
@@ -594,26 +594,26 @@ void invalidReturncontractReturncontract() {
   }
 
   private static void validCode(final String str) {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     Code code = evm.getCodeUncached(bytesFromPrettyPrint(str));
     assertThat(code.isValid()).isTrue();
   }
 
   private static void invalidCode(final String str, final String error) {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     Code code = evm.getCodeUncached(bytesFromPrettyPrint(str));
     assertThat(code.isValid()).isFalse();
     assertThat(((CodeInvalid) code).getInvalidReason()).contains(error);
   }
 
   private static void invalidCode(final String str) {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     Code code = evm.getCodeUncached(bytesFromPrettyPrint(str));
     assertThat(code.isValid()).isFalse();
   }
 
   private static void invalidCodeForCreation(final String str) {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     Code code = evm.getCodeForCreation(bytesFromPrettyPrint(str));
     assertThat(code.isValid()).isFalse();
   }
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/code/CodeV0Test.java b/evm/src/test/java/org/hyperledger/besu/evm/code/CodeV0Test.java
index 3b16b1c9238..54d457e6284 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/code/CodeV0Test.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/code/CodeV0Test.java
@@ -47,7 +47,7 @@ class CodeV0Test {
 
   @BeforeEach
   void startUp() {
-    evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   }
 
   @Test
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/fluent/EVMExecutorTest.java b/evm/src/test/java/org/hyperledger/besu/evm/fluent/EVMExecutorTest.java
index aa9dcdb23f3..eaa8dbc8c4b 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/fluent/EVMExecutorTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/fluent/EVMExecutorTest.java
@@ -131,9 +131,13 @@ void defaultChainIdAPIs() {
     assertThat(cancunEOFEVM.getChainId()).contains(defaultChainId);
 
     EVMExecutor pragueEVM =
-        EVMExecutor.pragueEOF(defaultChainId.toBigInteger(), EvmConfiguration.DEFAULT);
+        EVMExecutor.prague(defaultChainId.toBigInteger(), EvmConfiguration.DEFAULT);
     assertThat(pragueEVM.getChainId()).contains(defaultChainId);
 
+    EVMExecutor osakaEVM =
+        EVMExecutor.osaka(defaultChainId.toBigInteger(), EvmConfiguration.DEFAULT);
+    assertThat(osakaEVM.getChainId()).contains(defaultChainId);
+
     EVMExecutor futureEipsVM = EVMExecutor.futureEips(EvmConfiguration.DEFAULT);
     assertThat(futureEipsVM.getChainId()).contains(defaultChainId);
   }
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculatorTest.java b/evm/src/test/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculatorTest.java
similarity index 88%
rename from evm/src/test/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculatorTest.java
rename to evm/src/test/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculatorTest.java
index 46fe1dcba8b..3236c13e833 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/gascalculator/PragueEOFGasCalculatorTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/gascalculator/OsakaGasCalculatorTest.java
@@ -20,11 +20,11 @@
 
 import org.junit.jupiter.api.Test;
 
-class PragueEOFGasCalculatorTest {
+class OsakaGasCalculatorTest {
 
   @Test
   void testPrecompileSize() {
-    PragueEOFGasCalculator subject = new PragueEOFGasCalculator();
+    OsakaGasCalculator subject = new OsakaGasCalculator();
     assertThat(subject.isPrecompile(Address.precompiled(0x14))).isFalse();
     assertThat(subject.isPrecompile(Address.BLS12_MAP_FP2_TO_G2)).isTrue();
   }
@@ -32,7 +32,7 @@ void testPrecompileSize() {
   @Test
   void testNewConstants() {
     CancunGasCalculator cancunGas = new CancunGasCalculator();
-    PragueEOFGasCalculator praugeGasCalculator = new PragueEOFGasCalculator();
+    OsakaGasCalculator praugeGasCalculator = new OsakaGasCalculator();
 
     assertThat(praugeGasCalculator.getMinCalleeGas()).isGreaterThan(cancunGas.getMinCalleeGas());
     assertThat(praugeGasCalculator.getMinRetainedGas())
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/internal/CodeCacheTest.java b/evm/src/test/java/org/hyperledger/besu/evm/internal/CodeCacheTest.java
index 7b8a74b0cd9..cffd7ef5fae 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/internal/CodeCacheTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/internal/CodeCacheTest.java
@@ -30,7 +30,7 @@ class CodeCacheTest {
 
   @Test
   void testScale() {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     final Bytes contractBytes =
         Bytes.fromHexString("0xDEAD" + op + "BEEF" + op + "B0B0" + op + "C0DE" + op + "FACE");
     final CodeScale scale = new CodeScale();
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/Create2OperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/Create2OperationTest.java
index 4b2a5449ed0..a70b09a60b9 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/Create2OperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/Create2OperationTest.java
@@ -56,7 +56,7 @@ public class Create2OperationTest {
   private MessageFrame messageFrame;
   private final WorldUpdater worldUpdater = mock(WorldUpdater.class);
   private final MutableAccount account = mock(MutableAccount.class);
-  private final EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  private final EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   private final MutableAccount newAccount = mock(MutableAccount.class);
 
   private final Create2Operation operation =
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/CreateOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/CreateOperationTest.java
index 482df37fd65..697d87ef1ee 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/CreateOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/CreateOperationTest.java
@@ -219,7 +219,7 @@ void shanghaiMaxInitCodeSizePlus1Create() {
 
   @Test
   void eofV1CannotCall() {
-    final EVM pragueEvm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    final EVM pragueEvm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     final UInt256 memoryOffset = UInt256.fromHexString("0xFF");
     final UInt256 memoryLength = UInt256.valueOf(SIMPLE_CREATE.size());
     final MessageFrame messageFrame =
@@ -248,7 +248,7 @@ private MessageFrame testMemoryFrame(
       final UInt256 memoryLength,
       final UInt256 value,
       final int depth) {
-    final EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    final EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     final MessageFrame messageFrame =
         MessageFrame.builder()
             .type(MessageFrame.Type.CONTRACT_CREATION)
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/DataCopyOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/DataCopyOperationTest.java
index af5922aa074..aa2ed37b5c7 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/DataCopyOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/DataCopyOperationTest.java
@@ -36,7 +36,7 @@
 
 class DataCopyOperationTest {
 
-  static EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  static EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
 
   static Collection<Object[]> datacopyTestVector() {
     return Arrays.asList(
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/EofCreateOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/EofCreateOperationTest.java
index d5d1212dfba..5e9be626654 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/EofCreateOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/EofCreateOperationTest.java
@@ -62,7 +62,7 @@ class EofCreateOperationTest {
 
   @Test
   void innerContractIsCorrect() {
-    final EVM evm = MainnetEVMs.cancunEOF(EvmConfiguration.DEFAULT);
+    final EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     Code code = evm.getCodeUncached(INNER_CONTRACT);
     assertThat(code.isValid()).isTrue();
 
@@ -92,7 +92,7 @@ void innerContractIsCorrect() {
   @Test
   void eofCreatePassesInCallData() {
     Bytes outerContract = EOF_CREATE_CONTRACT;
-    final EVM evm = MainnetEVMs.cancunEOF(EvmConfiguration.DEFAULT);
+    final EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
 
     Code code = evm.getCodeUncached(outerContract);
     if (!code.isValid()) {
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtCallOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtCallOperationTest.java
index 93b10115015..ee974c15c54 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtCallOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtCallOperationTest.java
@@ -27,7 +27,7 @@
 import org.hyperledger.besu.evm.account.MutableAccount;
 import org.hyperledger.besu.evm.frame.ExceptionalHaltReason;
 import org.hyperledger.besu.evm.frame.MessageFrame;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.internal.EvmConfiguration;
 import org.hyperledger.besu.evm.testutils.TestMessageFrameBuilder;
 import org.hyperledger.besu.evm.worldstate.WorldUpdater;
@@ -44,7 +44,7 @@ public class ExtCallOperationTest {
 
   private final WorldUpdater worldUpdater = mock(WorldUpdater.class);
   private final MutableAccount account = mock(MutableAccount.class);
-  private static final EVM EOF_EVM = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  private static final EVM EOF_EVM = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   public static final Code LEGACY_CODE =
       EOF_EVM.getCodeUncached(Bytes.of(ExtCallOperation.OPCODE, 1));
   public static final Code SIMPLE_EOF =
@@ -115,7 +115,7 @@ void gasTest(
       final Bytes stackItem,
       final boolean validCode,
       final boolean warmAddress) {
-    final ExtCallOperation operation = new ExtCallOperation(new PragueEOFGasCalculator());
+    final ExtCallOperation operation = new ExtCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -206,7 +206,7 @@ void callWithValueTest(
       final Wei valueSent,
       final Wei valueWeiHave,
       final boolean isStatic) {
-    final ExtCallOperation operation = new ExtCallOperation(new PragueEOFGasCalculator());
+    final ExtCallOperation operation = new ExtCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -242,7 +242,7 @@ void callWithValueTest(
 
   @Test
   void overflowTest() {
-    final ExtCallOperation operation = new ExtCallOperation(new PragueEOFGasCalculator());
+    final ExtCallOperation operation = new ExtCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -281,7 +281,7 @@ void overflowTest() {
 
   @Test
   void legacyTest() {
-    final ExtCallOperation operation = new ExtCallOperation(new PragueEOFGasCalculator());
+    final ExtCallOperation operation = new ExtCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtDelegateCallOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtDelegateCallOperationTest.java
index 62a10dcc2d7..b08635748c7 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtDelegateCallOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtDelegateCallOperationTest.java
@@ -27,7 +27,7 @@
 import org.hyperledger.besu.evm.account.MutableAccount;
 import org.hyperledger.besu.evm.frame.ExceptionalHaltReason;
 import org.hyperledger.besu.evm.frame.MessageFrame;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.internal.EvmConfiguration;
 import org.hyperledger.besu.evm.testutils.TestMessageFrameBuilder;
 import org.hyperledger.besu.evm.worldstate.WorldUpdater;
@@ -45,7 +45,7 @@ public class ExtDelegateCallOperationTest {
   private final WorldUpdater worldUpdater = mock(WorldUpdater.class);
   private final MutableAccount account = mock(MutableAccount.class);
   //  private final MutableAccount targetAccount = mock(MutableAccount.class);
-  private static final EVM EOF_EVM = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  private static final EVM EOF_EVM = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   public static final Code LEGACY_CODE =
       EOF_EVM.getCodeUncached(Bytes.of(ExtDelegateCallOperation.OPCODE, 1));
   public static final Code SIMPLE_EOF =
@@ -119,7 +119,7 @@ void gasTest(
       final boolean validCode,
       final boolean warmAddress) {
     final ExtDelegateCallOperation operation =
-        new ExtDelegateCallOperation(new PragueEOFGasCalculator());
+        new ExtDelegateCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -180,7 +180,7 @@ void callTypes(
       final ExceptionalHaltReason haltReason,
       final Bytes stackItem) {
     final ExtDelegateCallOperation operation =
-        new ExtDelegateCallOperation(new PragueEOFGasCalculator());
+        new ExtDelegateCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -227,7 +227,7 @@ void callTypes(
   @Test
   void overflowTest() {
     final ExtDelegateCallOperation operation =
-        new ExtDelegateCallOperation(new PragueEOFGasCalculator());
+        new ExtDelegateCallOperation(new OsakaGasCalculator());
     final var messageFrame =
         new TestMessageFrameBuilder()
             .initialGas(400000)
@@ -265,7 +265,7 @@ void overflowTest() {
   @Test
   void legacyTest() {
     final ExtDelegateCallOperation operation =
-        new ExtDelegateCallOperation(new PragueEOFGasCalculator());
+        new ExtDelegateCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtStaticCallOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtStaticCallOperationTest.java
index ed306e89c7d..6b96b960cdb 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtStaticCallOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/ExtStaticCallOperationTest.java
@@ -27,7 +27,7 @@
 import org.hyperledger.besu.evm.account.MutableAccount;
 import org.hyperledger.besu.evm.frame.ExceptionalHaltReason;
 import org.hyperledger.besu.evm.frame.MessageFrame;
-import org.hyperledger.besu.evm.gascalculator.PragueEOFGasCalculator;
+import org.hyperledger.besu.evm.gascalculator.OsakaGasCalculator;
 import org.hyperledger.besu.evm.internal.EvmConfiguration;
 import org.hyperledger.besu.evm.testutils.TestMessageFrameBuilder;
 import org.hyperledger.besu.evm.worldstate.WorldUpdater;
@@ -44,7 +44,7 @@ public class ExtStaticCallOperationTest {
 
   private final WorldUpdater worldUpdater = mock(WorldUpdater.class);
   private final MutableAccount account = mock(MutableAccount.class);
-  private static final EVM EOF_EVM = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  private static final EVM EOF_EVM = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   public static final Code LEGACY_CODE =
       EOF_EVM.getCodeUncached(Bytes.of(ExtStaticCallOperation.OPCODE, 1));
   public static final Code SIMPLE_EOF =
@@ -115,8 +115,7 @@ void gasTest(
       final Bytes stackItem,
       final boolean validCode,
       final boolean warmAddress) {
-    final ExtStaticCallOperation operation =
-        new ExtStaticCallOperation(new PragueEOFGasCalculator());
+    final ExtStaticCallOperation operation = new ExtStaticCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
@@ -152,8 +151,7 @@ void gasTest(
 
   @Test
   void overflowTest() {
-    final ExtStaticCallOperation operation =
-        new ExtStaticCallOperation(new PragueEOFGasCalculator());
+    final ExtStaticCallOperation operation = new ExtStaticCallOperation(new OsakaGasCalculator());
     final var messageFrame =
         new TestMessageFrameBuilder()
             .initialGas(400000)
@@ -190,8 +188,7 @@ void overflowTest() {
 
   @Test
   void legacyTest() {
-    final ExtStaticCallOperation operation =
-        new ExtStaticCallOperation(new PragueEOFGasCalculator());
+    final ExtStaticCallOperation operation = new ExtStaticCallOperation(new OsakaGasCalculator());
 
     final var messageFrame =
         new TestMessageFrameBuilder()
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/JumpOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/JumpOperationTest.java
index 7b9fab338e0..c97c81b0220 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/JumpOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/JumpOperationTest.java
@@ -56,7 +56,7 @@ private TestMessageFrameBuilder createMessageFrameBuilder(final long initialGas)
 
   @BeforeEach
   void init() {
-    evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   }
 
   @Test
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/operation/SelfDestructOperationTest.java b/evm/src/test/java/org/hyperledger/besu/evm/operation/SelfDestructOperationTest.java
index d3a3db754b0..8fbd4d142d3 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/operation/SelfDestructOperationTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/operation/SelfDestructOperationTest.java
@@ -55,7 +55,7 @@ public class SelfDestructOperationTest {
   @Mock private WorldUpdater worldUpdater;
   @Mock private MutableAccount accountOriginator;
   @Mock private MutableAccount accountBeneficiary;
-  private final EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  private final EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
 
   private final SelfDestructOperation frontierOperation =
       new SelfDestructOperation(new ConstantinopleGasCalculator());
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/processor/ContractCreationProcessorTest.java b/evm/src/test/java/org/hyperledger/besu/evm/processor/ContractCreationProcessorTest.java
index 3420df88dcd..8b3d6ac51a4 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/processor/ContractCreationProcessorTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/processor/ContractCreationProcessorTest.java
@@ -45,7 +45,7 @@
 class ContractCreationProcessorTest
     extends AbstractMessageProcessorTest<ContractCreationProcessor> {
 
-  EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
 
   private ContractCreationProcessor processor;
 
diff --git a/evm/src/test/java/org/hyperledger/besu/evm/tracing/ExtendedOperationTracerTest.java b/evm/src/test/java/org/hyperledger/besu/evm/tracing/ExtendedOperationTracerTest.java
index bd043f933b5..90c6adff351 100644
--- a/evm/src/test/java/org/hyperledger/besu/evm/tracing/ExtendedOperationTracerTest.java
+++ b/evm/src/test/java/org/hyperledger/besu/evm/tracing/ExtendedOperationTracerTest.java
@@ -55,7 +55,7 @@ void setUp() {
 
   @Test
   void shouldCallTraceAccountCreationResultIfIsExtendedTracing() {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     final ContractCreationProcessor contractCreationProcessor =
         new ContractCreationProcessor(evm, false, Collections.emptyList(), 0);
 
@@ -69,7 +69,7 @@ void shouldCallTraceAccountCreationResultIfIsExtendedTracing() {
 
   @Test
   void shouldNotCallTraceAccountCreationResultIfIsNotExtendedTracing() {
-    EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
     final ContractCreationProcessor contractCreationProcessor =
         new ContractCreationProcessor(evm, false, Collections.emptyList(), 0);
 
diff --git a/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/EofContainerSubCommand.java b/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/EofContainerSubCommand.java
index 27c4547d268..9b4d6e2e645 100644
--- a/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/EofContainerSubCommand.java
+++ b/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/EofContainerSubCommand.java
@@ -119,7 +119,7 @@ public class EofContainerSubCommand implements Runnable {
           .constructParametricType(Map.class, String.class, EOFTestCaseSpec.class);
 
   List<FuzzingClient> fuzzingClients = new ArrayList<>();
-  EVM evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+  EVM evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   long validContainers;
   long totalContainers;
 
diff --git a/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/InternalClient.java b/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/InternalClient.java
index a6d7035fe80..5d2adb8e919 100644
--- a/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/InternalClient.java
+++ b/testfuzz/src/main/java/org/hyperledger/besu/testfuzz/InternalClient.java
@@ -31,7 +31,7 @@ class InternalClient implements FuzzingClient {
 
   public InternalClient(final String clientName) {
     this.name = clientName;
-    this.evm = MainnetEVMs.pragueEOF(EvmConfiguration.DEFAULT);
+    this.evm = MainnetEVMs.osaka(EvmConfiguration.DEFAULT);
   }
 
   @Override