Announcing release v1.7.2 for BNB Smart Chain.
This is a MANDATORY update for all BSC Mainnet users. The update is in preparation for the upcoming Osaka/Mendel hard fork, scheduled for April 28, 2026, at 02:30:00 AM UTC. All node operators must update their software before this time to continue following the chain.
Key improvements in this release:
- Critical Security Fix: This version addresses a high-severity vulnerability where a remote peer could trigger excessive memory consumption by sending oversized P2P messages, potentially leading to a node crash (OOM). The fix implements delayed P2P message decoding, ensuring that messages are validated before being fully processed, which protects nodes from this attack vector.
- Blob Transaction Enhancements: Support has been added to validate blob sidecars in builder bids. This improves the integrity and security of the block-building process for transactions that include blobs.
- Core Stability: A fix has been implemented to prevent nodes from attempting to process block headers that are too far in the future during Data Availability (DA) checks, enhancing overall node stability.
Update Procedure:
A simple binary replacement is sufficient. Please ensure that the 'JournalFileEnabled' field is not present in your configuration file.
## MetaInfo Mandatory Update Required: YES Target Audience: all BSC Mainnet users Procedure: simply binary replacement should be good (ensure no 'JournalFileEnabled' field in config file) Schedule(Timeline): before 2026-04-28 02:30:00 AM UTC ## Changelog v1.7.2 is for BSC Mainnet [Osaka/Mendel hardfork](https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-658.md),the hard fork time is 2026-04-28 02:30:00 AM UTC ### BUGFIX - [#3597](https://github.com/bnb-chain/bsc/pull/3597) miner: support blob sidecar validation for bids - [#3590](https://github.com/bnb-chain/bsc/pull/3590) eth: delayed p2p message decoding - [#3601](https://github.com/bnb-chain/bsc/pull/3601) core: reject future chasing heads for DA checks ## Assets | Assets | Sha256 Checksum | | :-----------: |------------| | mainnet.zip | 522cb9902437df2368008b28bebb6b5c35ec026bf2ec41af40117ff507f53fa7 | | testnet.zip | 0d9de8b7f1bafc36711eed80e97bf33f906fadc2ceb5457361645941d7ad19f7 | | geth_linux | 59fd12dfc60a64e5646549939258a094b894e35fa530ddf9fa2bf4c090a3ff95 | | geth_mac | 5e4ffb1a6c25ee9ca3390629f9a74f25f762d0fae6a688d1a182be8814ec8ce3 | | geth_windows | 2b469307b2acb6fc4008e55a97086bc43b312a4f375fb82494191ebff5e44ebf | | geth_linux_arm64 | 112be3ea5f2fb1a6e2d628d621a85e8fe307b5833b55b1a6e3a98a3587d82a20 |