HIP32 epoch activation and new sharding config (#4769)

* 2151 epoch as 2024-10-30 19:50 UTC.
* Mainnet v5 with new sharding config

internal/configs/sharding/mainnet.go

@@ -73,6 +73,8 @@ type mainnetSchedule struct{}
 
 func (ms mainnetSchedule) InstanceForEpoch(epoch *big.Int) Instance {
 	switch {
+	case params.MainnetChainConfig.IsHIP32(epoch):
+		return mainnetV5
 	case params.MainnetChainConfig.IsHIP30(epoch):
 		return mainnetV4
 	case params.MainnetChainConfig.IsFeeCollectEpoch(epoch):
@@ -376,4 +378,13 @@ var (
 		hip30CollectionAddress, mainnetReshardingEpoch,
 		MainnetSchedule.BlocksPerEpoch(),
 	)
+	mainnetV5 = MustNewInstance(
+		2, 200, 2, 0.06,
+		numeric.MustNewDecFromStr("0.01"),
+		genesis.HarmonyAccountsPostHIP30,
+		genesis.FoundationalNodeAccountsV1_5, emptyAllowlist,
+		feeCollectorsMainnet, numeric.MustNewDecFromStr("0.25"),
+		hip30CollectionAddress, mainnetReshardingEpoch,
+		MainnetSchedule.BlocksPerEpoch(),
+	)
 )

internal/params/config.go

@@ -69,8 +69,8 @@ var (
 		SlotsLimitedEpoch:                     big.NewInt(999),  // Around Fri, 27 May 2022 09:41:02 UTC with 2s block time
 		CrossShardXferPrecompileEpoch:         big.NewInt(1323), // Around Wed 8 Feb 11:30PM UTC
 		AllowlistEpoch:                        EpochTBD,
-		LeaderRotationInternalValidatorsEpoch: EpochTBD,
-		LeaderRotationExternalValidatorsEpoch: EpochTBD,
+		LeaderRotationInternalValidatorsEpoch: big.NewInt(2151), // 2024-10-30 19:50 UTC
+		LeaderRotationExternalValidatorsEpoch: big.NewInt(2151), // 2024-10-30 19:50 UTC
 		FeeCollectEpoch:                       big.NewInt(1535), // 2023-07-20 05:51:07+00:00
 		ValidatorCodeFixEpoch:                 big.NewInt(1535), // 2023-07-20 05:51:07+00:00
 		HIP30Epoch:                            big.NewInt(1673), // 2023-11-02 17:30:00+00:00
@@ -79,6 +79,7 @@ var (
 		MaxRateEpoch:                          big.NewInt(1733), // 2023-12-17 12:20:15+00:00
 		DevnetExternalEpoch:                   EpochTBD,
 		TestnetExternalEpoch:                  EpochTBD,
+		HIP32Epoch:                            big.NewInt(2151), // 2024-10-30 19:50 UTC
 	}
 
 	// TestnetChainConfig contains the chain parameters to run a node on the harmony test network.