ME News reports that on August 29 (UTC+8), Polygon Labs issued an urgent notice stating that Polygon PoS nodes still running outdated versions of Bor or Heimdall after the activation of the Austin and Kyoto hard forks have fallen out of consensus and must upgrade their clients to catch up with the network. Austin was activated at mainnet block 91,949,700, requiring nodes to run Bor v2.10.0 or higher; Kyoto was activated at block height 51,533,000, requiring nodes to run Heimdall v0.11.0 or higher. Austin addresses two types of Bor resource exhaustion risks: L1-to-L2 bridge state synchronization events were not counted toward the gas limit, potentially slowing block processing; and the TxDependency field lacked size restrictions, which could cause peer nodes to crash. (Source: BlockBeats)
Polygon PoS Nodes Out of Consensus After Hard Forks; Labs Urges Client Upgrade
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Summary
On August 29 (UTC+8), Polygon Labs issued an urgent notice warning that Polygon PoS nodes running outdated Bor or Heimdall versions have lost consensus following the Austin and Kyoto hard forks. Nodes must upgrade to Bor v2.10.0 or higher for the Austin network upgrade (activated at block 91,949,700) and Heimdall v0.11.0 or higher for the Kyoto blockchain upgrade (activated at block 51,533,000) to rejoin the network. The Austin upgrade addresses two Bor resource exhaustion risks: unaccounted L1-to-L2 bridge state synchronization events and unbounded TxDependency field sizes, which could slow node processing or cause crashes.
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