0xPolygon/bor - v2.5.7 New

Published: Jan 13, 2026

Release Summary

Bor v2.5.7 is now available, and it is a critical security release recommended for all users.

This update resolves a peer-to-peer (p2p) vulnerability, incorporating a fix directly from the upstream Geth client. All node operators are strongly encouraged to upgrade their nodes immediately.

In addition to the security patch, this version introduces a major new feature:

Dynamic Gas Limit Adjustment
This new optional feature enables block producers to dynamically adjust block gas limits to help stabilize base fees. It operates as follows:

The feature is disabled by default and can be managed with new configuration flags, including enableDynamicGasLimit, gasLimitMin, gasLimitMax, and targetBaseFee.

A smaller update in this release includes the ability to override the StateSync records range, providing more control for node operators performing a state sync.

Release Notes

This is a security fix release and is recommended for all users. It resolves a p2p vulnerability, and the fix is taken from the upstream geth client.

## Some Other Changes are:
* miner: add dynamic gas limit adjustment by @cffls in https://github.com/0xPolygon/bor/pull/1979
* mainnet: Added Override StateSync Records Range by @pratikspatil024 in https://github.com/0xPolygon/bor/pull/1982
* v2.5.7 by @pratikspatil024 in https://github.com/0xPolygon/bor/pull/1984


**Full Changelog**: https://github.com/0xPolygon/bor/compare/v2.5.6...v2.5.7

Links

Back to 0xPolygon/bor releases