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zzzckck merged 1 commit into from
Apr 1, 2026
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Update Mendel Upgrade detail #816

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18 changes: 13 additions & 5 deletions docs/announce/mendel-bsc.md
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## Upgrade Timeline
The Mendel upgrade will happen at:

- Testnet: 2026-03
- Mainnet: 2026-04
- **Testnet:** 2026-03-24 02:30:00 AM UTC — enabled
- **Mainnet:** 2026-04-28 02:30:00 AM UTC

There are nine BEPs in Mendel:
The Mendel upgrade bundles nine BEPs, all listed in the meta-BEP:

- [BEP-658: Hardfork Meta-Osaka/Mendel](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-658.md)
- [BEP-658: Hardfork Meta-Osaka/Mendel](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-658.md)

### Notable: BEP-652 — Transaction Gas Limit Cap

[BEP-652](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-652.md) implements [EIP-7825](https://eips.ethereum.org/EIPS/eip-7825), enforcing a mandatory protocol-level cap on individual transaction gas at **16,777,216 gas (2^24)**. Transactions exceeding this limit will be rejected during validation.


## Upgrade BSC Mainnet Nodes to v1.7.2 Before Hardfork

[v1.7.2](https://github.com/bnb-chain/bsc/releases/tag/v1.7.2) is the required release for the BSC Mainnet Osaka/Mendel hardfork.
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