[Standard] Stacks - Upgrade API to v9.3.1

Scheduled for Sep 30, 00:00 UTC - Oct 1, 00:00 UTC

Scheduled

We are upgrading our Stacks API infrastructure to v9.3.1 on 2026-09-30. This release includes bug fixes, along with a database migration. Brief interruptions to RPC availability may occur on that date.

https://github.com/hirosystems/stacks-blockchain-api/releases/tag/v9.3.1

Posted Sep 23, 2026 - 15:45 UTC

This scheduled maintenance affects: Stacks (Mainnet — REST API, Testnet — REST API).