Hotfix Hardfork for BSC Mainnet: Upgrade BSC Geth to v1.2.14 or 1.3.2

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Attention BNB Chain Developers.

A potential issue was identified in the BSC network that could potentially cause block synchronization failures in some BSC client implementations or disrupt block building for validators. This issue has been addressed in the latest software updates, versions 1.2.14 and 1.3.2 of the BSC geth client and BSC erigon client 1.1.9-BUILD20231129. 

As a precautionary measure, it is crucial that all BSC node operators – especially validators – upgrade their nodes to these latest versions to ensure network stability and functionality.

Hardfork details

Effective block height:


December 1, 2023


08:57:53 GMT+1 (Central European Standard Time)

What does this mean for community developers?

Validators and full node operators on the BSC network are advised to update their client software to the specified version. Detailed version information for this update will be provided to ensure that all network participants are running the most current and stable version of the software. This upgrade is essential for maintaining network integrity and performance.

Upgrade Instructions

Geth Client


Since v1.3.1, the flag –txlookuplimit has been replaced by –history.transactions. Make sure you no longer use –txlookuplimit. Otherwise you may experience performance issues.

Erigon Client

Please download the erigon binary directly to update your client. 

Thank you for your continued support of BNB Chain.