No components marked as affected
Write-up published
Resolved
Date: June 24–25, 2025Time: 19:00 UTC \(June 24\) – 02:30 UTC \(June 25\)Status: ResolvedAffected Services:
Amoy Heimdall Services \(Validator Sync, APIs\)
Amoy Staking Dashboard
Summary
On June 24–25, 2025 \(UTC\), the Polygon Labs team conducted a planned upgrade of the Heimdall layer on the Amoy testnet, migrating from V1 to V2. This served as a full test run ahead of the Mainnet deployment.
During the 7.5-hour window, Heimdall on Amoy was paused. This temporarily affected validator syncing, checkpoint processing, and Heimdall-dependent APIs. Bor continued block production throughout with no chain downtime.
Technical Overview
Heimdall V1 was halted at the final testnet checkpoint.
State was exported and used to generate a V2 genesis.json.
Nodes were upgraded to Heimdall V2 and re-initialized on heimdallv2-amoy.
APIs and dashboards resumed after V2 sync completed.
Resolution
By 02:30 UTC on June 25, Heimdall V2 was fully deployed and synced across Amoy validators. Testnet services were verified operational and stable.
Resolved
Planned Migration – Heimdall V1 → V2(Amoy)