Prefect 3.7.8: scheduling and event stream fixes
A patch release focused on reliability at the edges: RRULE schedule anchors, the event recorder under load, and clearer worker auth errors.
Also shipped Jul 9, 2026Prefect in July 2026 →
Change to default pipeline editor for workspaces with the compliance security profile enabled
The Lakeflow Pipelines Editor has been generally available since May 2026. In August, it will become the default editor for developing and debugging pipelines in workspaces with the compliance security profile enabled. At that time the legacy editor will be removed.
Strac connector (Beta)
The Strac connector is now available in Lakeflow Connect in Beta . Workspace admins can control access to this feature from the Previews page. The connector ingests data-security audit events from your Strac instance into Databricks. Authentication uses a Strac API key. See Strac connector .
Protobuf tensor input for custom model serving endpoints (Public Preview)
For custom model serving endpoints with a tensor-based input signature, you can now send the request body as a serialized KServe v2 ModelInferRequest with Content-Type: application/x-protobuf , instead of JSON. This feature is in Public Preview and is only available on endpoints deployed after July 9, 2026. See Protobuf tensor input .
Genie One enhancements
- Document citations : Documents now show citations that link content back to the data and sources Genie One used to generate the document. See View citations . Document version history : Documents now keep a version history so you can review earlier versions. See View version history .
Front-end Private Link for account-level Genie One (Beta)
You can now configure front-end Private Link for account-level Genie One. Turn on the Front-end Private Link for Custom URLs and Account preview to get started. See Configure inbound Private Link for account-level resources .
Dashboard enhancements and bug fixes
- Import BI files is in Public Preview : Importing Power BI and Tableau reports as AI/BI dashboards with Genie Code is in Public Preview. You can also start an import directly from the dashboard list page. See Import BI files using Genie Code .
More from PrefectEvery Prefect release →
Prefect 3.7.8 - The flush must go on
Enhancements ➕➕ Format server-side validation errors for concurrency slot acquisition Bug Fixes 🐞 Keep TaskRunRecorder periodic flush alive when events are dropped Fix Windows permission error on git pull in runner storage Fix RRULE schedule anchor computed in UTC but interpreted as local time Reconnect events client from time-based checkpoint when...
Workspace search and a command palette in Prefect Cloud
Find any object in your workspace by ID or search term, view and filter results on a dedicated page, and jump to any page or run common actions from a command palette.
Prefect 3.7.1 through 3.7.7: real-time workers and a faster scheduler
The releases between 3.7.0 and 3.7.8 built a real-time channel between the server and workers, made the scheduler noticeably faster, and started emitting lifecycle events for every object.
Prefect 3.7.7 - Don't put that work pool configuration in your mouth. It's stale
Enhancements ➕➕ Accept a single step mapping in prefect.yaml action sections Bug Fixes 🐞 Fix set_working_directory relative path resolution in workspace resolver Run pull steps for module-path entrypoints when loading flow from flow run Fix UI version redirect leaking internal host behind reverse proxy Reconcile stale work-pool snapshots on worker...
Prefect 3.8: the redesigned UI ships by default
The redesigned UI is now the default for self-hosted servers, with quicker run navigation, clickable log links, and a round of reliability fixes.
Prefect 3.8.0 - You had me at first paint
Enhancements ➕➕ Add deployment filters to flow run triggers Make the V2 UI the default for self-hosted servers Copy additional options when using "Copy to new run" in the V2 UI Add "Copy to new run" to the flow run menu in the V2 UI Make URLs in run logs clickable in the V2 UI Allow year/month selection and manual typing in date inputs in the V2 UI Add...
Prefect 3.7.6 - You can only be `Late` once
Bug Fixes 🐞 Return PrefectFutureList from Task.map when deferred=True Fix race condition in UI static directory creation with multiple workers Raise clear error when FlowRun/TaskRun passed as task argument Prevent duplicate Late state transitions in MarkLateRuns Quote -q and -p args separately in work-queue create output Development & Tidiness 🧹 Widen...
Prefect 3.8.1 - To relinquish, perchance to retry
Enhancements ➕➕ Show tooltips for flow run state tabs in the V2 UI Bug Fixes 🐞 Make ConcurrencyContext exit cleanup best-effort Keep worker startup alive when the Prefect API is unreachable Make PrefectFutureList.result timeout message reachable Render ANSI color escape codes in flow run logs in the V2 UI Confirm the exact suspension transition reported by...