prefect 3.7.1
Enhancements ➕➕ - Add deployment_name logging variable - Infer logs page size from API response in CLI - Add default result storage CLI - Add Pydantic-aware tojson template filter - Add worker channel protocol contract - Add worker channel client with REST fallback - Add worker cleanup executor - Add worker work-pool snapshot handling - Add...
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Launch Week: dbt orchestration and infrastructure debugging in Cloud
Prefect Cloud's spring launch week brought first-class dbt orchestration, infrastructure debugging in the run page, managed automations, config plugins, and per-workspace rate limits.
Prefect 3.7.2 - Delete after running
Enhancements ➕➕ Add delete flow run automation action Add worker channel handshake and heartbeat Add work-pool snapshot delivery to worker channel Index triggers by expect pattern to avoid O(n) scan in find_interested_triggers Cache variable reads within a single resolve_variables() call Cache block document template resolution Validate PEP 508 dependencies...
Prefect 3.7: infrastructure decorators and plugins are GA
Two of our most-requested experimental surfaces graduate to general availability, flows can render their own dependency graphs, and prepared workspaces now run with uv.
Prefect 3.7.0 - Our little features are all grown up 🥲
Prefect 3.7.0 promotes infrastructure decorators and the plugin system to GA. Infrastructure decorators are now ready for defining reusable run infrastructure directly in Python, and plugins now live in first-class settings with backward-compatible support for existing experimental configuration. Turns out they were just going through a phase.
Prefect 3.6.10 through 3.6.29: the command line grows up
The releases across early 2026 leaned into the command line and day-to-day operations: SDK generation, a server status command, watching runs from the terminal, and richer run telemetry.
Prefect 3.6.29 - ON CONFLICT DO BETTER
Enhancements ➕➕ Replace correlated EXISTS with JOIN fast-path in count_flow_runs Sort TaskRunRecorder bulk upsert batches by task_run.id to prevent deadlocks Bug Fixes 🐞 Clear BlockStorageAdapter destination before each pull Fix task run recorder conflict handling Always enforce basepath containment in LocalFileSystem Development & Tidiness 🧹 Explicitly...
Prefect 3.7.3 - Scheduler go brrrr
Automatic dependency installation for pulled-code deployments is now opt-in. In 3.7.2, the runner would automatically prepare project dependencies when a deployment pulled code containing a pyproject.toml. This behavior is now disabled by default.
Prefect 3.7.4 - From cradle to grave
New Features 🎉 Emit lifecycle events (created, updated, deleted) for all domain objects including variables, flows, block documents, block types, concurrency limits, artifact collections, and automations Enhancements ➕➕ Add Redis-backed cleanup queue backend with optimistic transactions and cross-process wakeups Add cleanup reconciler for worker channel...