Releasesby GlyphPrefect 3.6.15 - Simply Authful
Bug Fixes 🐞 Fix PrefectCloudEventsClient auth handshake breaking Cloud connections Cap concurrency limit retry-after to prevent excessive delays from burst traffic
3.6.14 - A Prefect Server for Every ::1
Enhancements ➕➕ - Support parsing TOML 1.0 on Python 3.11+ - Make runner cancellation observing critical to runner health - Reload root settings after running plugins to enable environment variable updates to take effect - Support IPv6 addresses in prefect server start - Add authentication to /api/events/in WebSocket endpoint Bug Fixes 🐞 - Add polling...
Prefect 3.6.13 - The heartbeat is coming from *inside* the engine
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...
Prefect 3.6.12 - It's not a feature, it's a bug!
What's Included Enhancements ➕➕ Add httpx.ConnectError to client retry exceptions Bug Fixes 🐞 Add build=False documentation to flow.deploy guide fix: display error details nicely in work-pool create command fix: remove CANCELLED from EnforceCancellingToCancelledTransition to allow retrying cancelled flows Add retry logic to...
Prefect 3.6.11 - It's my generation, baby
Released on January 15, 2026 This release introduces prefect sdk generate a new CLI command that generates fully-typed, custom Python SDKs from the deployments in your workspace or self-hosted server, making it easy to trigger your deployments from other workflows with confidence. To see how it works, check out the Prefect docs.
Prefect 3.6.10 - Five Bugs Walked Into A Bar And None Of Them Left
3.6.10 - Five Bugs Walked Into A Bar And None Of Them Left Released on January 08, 2026 Enhancements ➕➕ Add prefect automation update CLI command Add upserting global concurrency limit decay Bug Fixes 🐞 Fix AttributeError in Consumer.cleanup() for non-memory brokers Fix exception_to_crashed_state_sync failing without async backend Fix MockValSer...