Heimdall-v2: v0.7.1 for Polygon Amoy and Mainnet.

Hello Everyone,

We have released a new version of heimdall-v2: v0.7.1 for Polygon Amoy and Mainnet. This release is the public counterpart of the private v0.7.0 release that delivered the Phuket hardfork, already activated on both networks:

  • Amoy: block 32,276,400 (activated April 16, 2026)

  • Mainnet: block 44,070,000 (activated April 29, 2026)

In addition to the gated changes in v0.7.0, v0.7.1 includes a small post-rollout fix that relaxes a heimdall clause causing vote-extension rejections when heimdall is temporarily unable to query bor. This makes node operation more resilient to brief execution-client lag.
Upgrading to v0.7.1 is recommended for all node operators on all networks.

Steps for upgrading Heimdall

  • Stop heimdalld service

sudo service heimdalld stop

  • Install heimdall with a version tag, network name, 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 -- v0.7.1 <network> <node_type>  
  • Check heimdall version (it should print 0.7.1 )

/usr/bin/heimdalld version

  • Restart heimdall service

sudo service heimdalld start

  • Restart the telemetry services

sudo service telemetry restart

What’s Changed
Full Changelog: v0.6.0…v0.7.1

Docker Images
You can find the latest docker images here.

Thanks,
Polygon Team