Polygon PoS’s Heimdall V2 consensus client recently incurred an outage lasting approximately one hour due to an identified consensus bug.
Throughout this disruption, the separate Bor layer, responsible for block production and transaction execution, continued functioning normally, ensuring uninterrupted network operations for users.
The Heimdall V2 upgrade, noted for its significant technical complexity as Polygon’s most intricate hard fork since 2020 (involving CometBFT and Cosmos-SDK v0.50), is the consensus component for the Polygon proof-of-stake chain, while Bor handles block creation independently.
Following the downtime, Polygon developers detected synchronization inconsistencies across various RPC providers’ Bor nodes. Technical teams are actively working to resolve these post-outage inconsistencies.