[Urgent] Polygon Mainnet - Upgrade Heimdall to v0.10.0

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted Jul 22, 2026 - 19:14 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jul 22, 2026 - 14:01 UTC

Scheduled

We are upgrading our Polygon Mainnet infrastructure to Heimdall v0.10.0.

This is a hardfork release introducing the Ithaca protocol upgrade, which enables autonomous recovery from block producer stalls and includes critical stability improvements.

The Ithaca hardfork will activate at Heimdall block 50,185,000 (expected ~2026-07-29 14:00 UTC).

During the maintenance window, brief interruptions to RPC availability may occur.

https://github.com/0xPolygon/heimdall-v2/releases/tag/v0.10.0
Posted Jul 21, 2026 - 13:43 UTC
This scheduled maintenance affected: Polygon (Mainnet — JSON-RPC API, Mainnet — Websockets API, Mainnet — Webhooks, Mainnet — Streams).
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