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prefect 3.6.13 - The heartbeat is coming from *inside* the engine

UpdateUnverifiedAdded Sep 25, 2026

Enhancements ➕➕ - Add FlowRunFilterCreatedBy - Add retry logic for PrefectEventsClient.__aenter__() initial connection Bug Fixes 🐞 - Move flow run heartbeat event emission to flow run engine - Fix websocket cleanup AttributeError in event clients - Add warning when sync task with timeout runs in worker thread - Prevent GitHub token leakage in git error...

Topics: Governance, BI, Developer tools

Prefect's release notes

More Prefect releases

Every Prefect release
DateRelease
Jan 20prefect 3.6.12 - It's not a feature, it's a bug!unverified
Update
Jan 293.6.14 - A Prefect Server for Every ::1unverified
Update
Jan 30prefect 3.6.15 - Simply Authfulunverified
Update
Jan 15prefect 3.6.11 - It's my generation, babyunverified
Update
Feb 5prefect 3.6.16 - It's Bulking Seasonunverified
Update
Jan 8prefect 3.6.10 - Five Bugs Walked Into A Bar And None Of Them Leftunverified
Update
Feb 12prefect 3.6.17 - Goodbye, Ghost in the WebSocketunverified
Update
Dec 31prefect 3.6.9 - Auld Lang Syncunverified
Update

Also shipped on Jan 23, 2026

Prefect in January 2026

Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.

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