# BNB Chain Upgrades(Testnet)
**URL:** https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934
**Category:** BNB Smart Chain
**Created:** [March 21, 2023, 12:46am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934 "2023-03-21T00:46:32Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@brilliant-lx](https://forum.bnbchain.org/u/brilliant-lx)
#### Post date: [March 21, 2023, 12:46am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/1 "2023-03-21T00:46:32Z")
> Note:
>
> - Chapel is the name of the current BSC testnet.
> - For Mainnet, pls refer: [BSC hard forks forecast](https://forum.bnbchain.org/t/bnb-chain-upgrades-mainnet/936#future-4)
# 2026
### 1.Mendel: Passed
> Date: 2026-03-24 02:30:00 AM UTC AM UTC, [Block: 97510089](https://testnet.bscscan.com/block/97510089)
- [BEP-658: Hardfork Meta-Osaka/Mendel](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-658.md)
### 2.Pasteur: Passed
> Date: 2026-07-21 02:30:00 AM UTC, [Block: 120346349](https://testnet.bscscan.com/block/120346349)
- [BEP-673: Hardfork Meta-Pasteur](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-673.md)
### 3.Jenner: WIP
# 2025
### 1.Pascal: Passed
> Date: 2025-02-25 03:08:00 AM UTC, [Block: 48576786](https://testnet.bscscan.com/block/48576786)
> [FAQ: About Pascal Hardfork](https://forum.bnbchain.org/t/faq-about-pascal-hardfork/3093)
- [BEP-439: Implement EIP-2537: Precompile for BLS12-381 curve operations](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-439.md)
- [BEP-440: Implement EIP-2935: Serve historical block hashes from state](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-440.md)
- [BEP-441: Implement EIP-7702: Set EOA account code](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-441.md)
- [BEP-466: Make the block format compatible with EIP-7685](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-466.md)
- [BEP-496: Implement EIP-7623: Increase calldata cost](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-496.md)
- BEP-X: Systemcontract Code Cleanup. // No Dedicated BEP
### 2.Lorentz: Passed
> Date: 2025-04-08 07:33:00 AM UTC, [Height: 49791365](https://testnet.bscscan.com/block/49791365)
- [BEP-520: shorter block interval phase one: 1.5 seconds](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-520.md)
### 3. Maxwell: Passed
> Date: 2025-05-26 07:05:00 AM UTC
- [BEP-524: shorter block interval phase two: 0.75 seconds](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-524.md)
- [BEP-563: add Enhanced Validator Network proposal](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-563.md)
- [BEP-564: add New Block Fetching Messages proposal](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-564.md)
### 4. Fermi: Passed
> Date: 2025-11-10 02:25:00 AM UTC
> [https://testnet.bscscan.com/block/71859053](https://testnet.bscscan.com/block/71859053)
- [BEP-590: Extended Voting Rules for Fast Finality Stability](https://github.com/bnb-chain/BEPs/pull/590)
- [BEP-592: Non-Consensus Based Block-Level Access List](https://github.com/bnb-chain/BEPs/pull/592)
- [BEP-619: Short Block Interval Phase Three: 0.45 Seconds](https://github.com/bnb-chain/BEPs/pull/619)
- [BEP-593: Incremental Snapshot](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-593.md)
- [BEP-610: Implement EVM Super Instruction](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-610.md)
# 2024
### 1.Kepler: Passed
[About Johannes Kepler](https://en.wikipedia.org/wiki/Johannes_Kepler)
Height: 36087828, Date: Dec-19-2023 08:00:00 AM +UTC
- [BEP-319: Optimize the incentive mechanism of the Fast Finality feature](https://github.com/bnb-chain/BEPs/pull/319)
- Part of Shanghai Upgrade:
a.[BEP-216: Implement EIP-3855 PUSH0 instruction](https://github.com/bnb-chain/BEPs/pull/216)
b.[BEP-217: Implement EIP3860 Limit and meter initcode](https://github.com/bnb-chain/BEPs/pull/217)
c.[BEP-311: Warm COINBASE](https://github.com/bnb-chain/BEPs/pull/311)
d.[BEP-312: Announce EIP-6049 Deprecate SELFDESTRUCT](https://github.com/bnb-chain/BEPs/pull/312)
### 2.Feynman: Passed
> 2024-03-11 06:00:02 AM (UTC), [Height: 38475089](https://testnet.bscscan.com/block/38475089)
- [BEP-333: BNB Chain Fusion](https://github.com/bnb-chain/BEPs/pull/333)
### 2.1.FeynmanFix(Testnet Only): Passed
> 2024-03-25 5:00 AM (UTC)
> It is a fix for Feynman hard fork, no specific BEP
> Refer: [fix: add FeynmanFix upgrade for a testnet issue](https://github.com/bnb-chain/bsc/pull/2288)
### 3.Tycho: Passed
> 2024-04-17 05:07:24 AM (UTC), [Height: 39539137](https://testnet.bscscan.com/block/39539137)
> It mainly enable Cancun EIPs on BSC.
a.[BEP-336: Implement EIP-4844: ProtoDanksharding](https://github.com/bnb-chain/BEPs/pull/336)
b.[BEP-343: Implement EIP-1153: Transient storage opcodes](https://github.com/bnb-chain/BEPs/pull/343)
c.[BEP-344: Implement EIP-6780: SELFDESTRUCT only in same transaction](https://github.com/bnb-chain/BEPs/pull/344)
d.[BEP-342: Implement EIP-5656: MCOPY](https://github.com/bnb-chain/BEPs/pull/342)
e.[BEP-345: Implement EIP-7516: BLOBBASEFEE opcode](https://github.com/bnb-chain/BEPs/pull/345)
f.BSC won’t support “EIP-4788: BeaconRoot”
### 4.Haber: Passed
> 2024/05/29
> 2024-05-29 06:07:01 AM (UTC), [Height: 40748338](https://testnet.bscscan.com/block/40748338)
- [BEP-381: Precompile for secp256r1 Curve Support](https://github.com/bnb-chain/BEPs/pull/381)
### 4.1.HaberFix: Passed
> 2024/07/03
> It is a hard fork fix for SystemContract, no specific BEP
### 5.Bohr: Passed
> 2024/08/20
- [BEP-341: Validators can produce consecutive blocks](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-341.md)
- [BEP-402: Complete missing fields in Block Header to generate Signature](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-402.md)
- [BEP-404: Clear Miner History when Switching Validators Set](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-404.md)
- [BEP-410: Add Agent for Validators](https://github.com/bnb-chain/BEPs/pull/410)
# 2023
### 1.Planck
Height: 28196022, Date: Mar-20-2022
- [BEP-171: Security Enhancement for Cross-Chain Module](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP171.md)
- [BEP-172: Network Stability Enhancement On Slash Occur](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP172.md)
### 2.Luban
Height: 29295050, Date: April-27-2023
- [BEP-126: Introduce Fast Finality Mechanism](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP126.md), the 1st part.
- [BEP-174: Cross Chain Relayer Management](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP174.md)
- [BEP-221: CometBFT Light Block Validation](https://github.com/bnb-chain/BEPs/pull/221)
### 3.Plato
Height: 29861024, Date: May-17-2023
- [BEP-126: Introduce Fast Finality Mechanism](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP126.md), the 2nd part.
### 4.Hertz(Berlin, London On BSC)
Height: 31103030, Date: Jun-29-2023
- Part of Berlin Upgrade:
a.[BEP-225: Implement EIP-2565 ModExp Gas Cost](https://github.com/bnb-chain/BEPs/pull/225)
b.[BEP-229: Implement EIP-2718 Typed Transaction Envelope](https://github.com/bnb-chain/BEPs/pull/229)
c.[BEP-230: Implement EIP-2929 Gas cost increases for state access opcodes](https://github.com/bnb-chain/BEPs/pull/230)
d.[BEP-231: Implement EIP-2930: Optional access lists](https://github.com/bnb-chain/BEPs/pull/231)
- Part of London Upgrade:
a.[BEP-227: Implement EIP-3198: BASEFEE opcode](https://github.com/bnb-chain/BEPs/pull/227)
b.[BEP-226: Implement EIP-1559 with base fee of 0](https://github.com/bnb-chain/BEPs/pull/226)
c.[BEP-228: Implement EIP-3541: Prevent deploying contracts starting with 0xEF](https://github.com/bnb-chain/BEPs/pull/228)
d.[BEP-212: Implement EIP-3529: Reduction in Refunds](https://github.com/bnb-chain/BEPs/pull/212)
### 5.HertzFix
[About The HertzFix](https://forum.bnbchain.org/t/about-the-hertzfix/2400)
> it is a hot fix hard fork without BEP, check: [release v1.3.4](https://github.com/bnb-chain/bsc/releases/tag/v1.3.4)
> Height: 35682300, Date: Dec-05th-2023
# 2022
### 1.Euler
Height: 19203503, Date: May-11-2022
- [BEP-127 Temporary Maintenance Mode for Validators](https://github.com/bnb-chain/BEPs/blob/master/BEPs/127.md)
- [BEP-131 Introduce candidate validators onto BNB Smart Chain](https://github.com/bnb-chain/BEPs/blob/master/BEPs/131.md)
### 2.Nano
Height: 23482428, Date: Oct-07-2022
- Suspend CrossChain between BC & BSC due to the exploiter attack (emergency, no BEP)
### 3.Moran
Height: 23603940, Date: Oct-11-2022
- Fix the exploiter attack (emergency, no BEP)
### 4.Gibbs
Height: 22800220, Date: Sep-13-2022
- [BEP-153: Introduce Native Staking on BSC](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP153.md)
# 2021
### 1.RamanujanBlock (Testnet Only, No BEP)
Height: 1010000, Date: Aug-13-2020
- some update on block time check, e.g. FutureBlock
- update 10 system contracts
### 2.NielsBlock (Testnet Only, No BEP)
Height: 1014369, Date: Aug-13-2020
- update 10 system contracts
### 3.MirrorSync
Height: 5582500, Date: Jan-21-2021
- Upgrade 3 system contract (no BEP): [TokenManagerContract](https://bscscan.com/address/0x0000000000000000000000000000000000001008), [TokenHubContract](https://bscscan.com/address/0x0000000000000000000000000000000000001004), [RelayerIncentivizeContract](https://bscscan.com/address/0x0000000000000000000000000000000000001005)
### 4.Bruno
Height: 13837000, Date: Nov-05-2021
- [BEP-95: Real-Time Burning Mechanism](https://github.com/bnb-chain/BEPs/blob/master/BEPs/95.md)
- [BEP-93: Diff Sync Protocol: Speed up node sync](https://github.com/bnb-chain/BEPs/blob/master/BEPs/93.md)
---
### Author:  [@setunapo\_NodeReal](https://forum.bnbchain.org/u/setunapo_NodeReal)
#### Post date: [April 6, 2023, 6:26am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/2 "2023-04-06T06:26:17Z")
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### Author:  [@hzh](https://forum.bnbchain.org/u/hzh)
#### Post date: [February 13, 2025, 7:42am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/5 "2025-02-13T07:42:57Z")
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### Author:  [@hzh](https://forum.bnbchain.org/u/hzh)
#### Post date: [February 13, 2025, 7:44am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/6 "2025-02-13T07:44:14Z")
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### Author:  [@hzh](https://forum.bnbchain.org/u/hzh)
#### Post date: [February 13, 2025, 7:45am UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/7 "2025-02-13T07:45:35Z")
---
### Author:  [@Jess4bnb](https://forum.bnbchain.org/u/Jess4bnb)
#### Post date: [August 15, 2025, 3:57pm UTC](https://forum.bnbchain.org/t/bnb-chain-upgrades-testnet/934/8 "2025-08-15T15:57:55Z")
Good to know that, It’s really imressive