Bor v2.5.7, Erigon v3.3.7 and Heimdall v0.5.6 for all networks

Announcements
1

Hi all, we have released a new stable version for bor, v2.5.7 , erigon, v3.3.7and a new stable version of heimdall, v0.5.6 . We recommend to install these versions on all networks.

Bor

Bor v2.5.7 is a maintenance release containing improvements and bugs’ fixes.

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

Steps for upgrading Bor node

  1. Stop bor service

    sudo service bor stop

  2. Install Bor with a version tag, network name (mainnet/amoy), and node type (sentry, validator, or archive).

    # Replace the node type
curl -L https://raw.githubusercontent.com/maticnetwork/install/main/bor.sh | bash -s -- v2.5.7 <network> <node_type>

  3. Check bor version

    /usr/bin/bor version

# It should print 
# v2.5.7

  4. Restart bor service

Some Other Changes are:

Full Changelog: v2.5.6…v2.5.7

Erigon

The corresponding 0xPolygon/erigon version is v3.3.7 .

Heimdall

This is a maintenance release containing improvements and bugs’ fixes.

This release contains some fixes for the latest outage happened on mainnet on Jan 12th, 2026.
It’s recommended for all operators to update for all networks.
Also, it contains some optimizations for the logs output and the security audits reports.

Steps for upgrading Heimdall:

  1. Stop heimdalld service

    sudo service heimdalld stop

  2. Install heimdall with a version tag, network name (mainnet/amoy), and node type (sentry or validator).

    # Replace the network and node type
curl -L https://raw.githubusercontent.com/0xpolygon/install/heimdall-v2/heimdall-v2.sh | bash -s -- v0.5.6 <network> <node_type>

  3. Check heimdall version

    /usr/bin/heimdalld version

# It should print
# 0.5.6

  4. Restart heimdall service

    sudo service heimdalld start

  5. Restart the telemetry services

    sudo service telemetry restart

What’s Changed

New Contributors

Full Changelog: v0.5.5…v0.5.6