Polygon Labs Warns Clients to Upgrade After Austin and Kyoto Hardforks
Polygon Labs has issued an urgent notice to its clients regarding the recent Austin and Kyoto hardforks. The company stated that any Polygon PoS node that remained on pre-hardfork Bor or Heimdall binaries past two August activation heights has already fallen out of canonical consensus.
This means that stale nodes must upgrade and catch up before they can follow the network's accepted history again. According to Polygon, it had not observed mainnet disruption from Austin and framed the disclosed changes as proactive fixes.
The company explained that Bor versions earlier than v2.10.0 are incompatible after Austin activated at mainnet block 91,949,700. Similarly, Heimdall validators and full nodes need v0.11.0 after Kyoto activated at height 51,533,000.