prefect 3.6.5 - Batch Me If You Can
3.6.5 - Batch Me If You Can Released on December 04, 2025 Enhancements ➕➕ Raise if event is too big Support Path objects in result_storage parameter Hide "Join the Community" in air-gapped deployments Parametrize xreadgroup batch size in consumer and add EventPersister service setting Parametrize xautoclaim batch size Parametrize TaskRunRecorder and Trigger...
Also shipped Dec 4, 2025Prefect in December 2025 →
Adding Async Streaming to Postgres Foreign Data Wrappers
Supabase Wrappers now supports asynchronous streaming for Postgres Foreign Data Wrappers, improving performance for large analytical workloads.
Build "Sign in with Your App" using Supabase Auth
Supabase Auth now functions as an identity provider, supporting OAuth 2.1 and OpenID Connect to enable SSO for AI agents and third-party applications.
Critical Security Vulnerability in React Server Components
A critical security vulnerability was identified in React Server Components affecting specific versions of react-server-dom and Next.js.
Introducing the Batch API: Simpler and more efficient for large-scale workloads
The new Batch API is an asynchronous endpoint for processing large volumes of requests. It offers higher throughput, a 12-hour completion window, and 33% cost savings compared to synchronous alternatives.
Workers - One-click Access protection for Workers now creates reusable Cloudflare Access policies
Workers applications now use reusable Cloudflare Access policies to reduce duplication and simplify access management across multiple Workers. Previously, enabling Cloudflare Access on a Worker created per-application policies, unique to each application.
- Transient storage filter in Settings: The Databases page in Settings in the MotherDuck UI now supports...
- Transient storage filter in Settings: The Databases page in Settings in the MotherDuck UI now supports filtering by storage type DESCRIBE and SUMMARIZE exports: Downloading the results of DESCRIBE and SUMMARIZE queries is now supported in the MotherDuck UI DuckLake option in the Add Database menu: MotherDuck users can create a new DuckLake in the 'Add...
More from PrefectEvery Prefect release →
Prefect 2.20.25 - Latest and Greatest
Bug Fixes 🐞 - fix: update 2-latest Docker tag on all 2.x releases Integrations & Dependencies 🤝 - chore(deps): update asyncpg requirement from =0.23 to >=0.23,<0.32.0
Prefect 3.6.6 - The Eternal Docket of the Spotless Server
3.6.6 - The Eternal Docket of the Spotless Server Released on December 08, 2025 Enhancements ➕➕ Add client-side configuration for deployment concurrency grace period Add PostgreSQL search_path support via settings Add memory safeguards to event persister service Add perpetual services infrastructure and convert cancellation_cleanup to perpetual Docket task...
Prefect 2.20.24 - They Don't Make Workers Like This Anymore
- fix: use Pydantic v1 compatible worker metadata for Prefect 2.x
Prefect 3.6.4 - No Deployment Left Unparametrized
Bug Fixes 🐞 - fix: preserve event template parameters in deployment triggers - Fix truncating log behavior Integrations & Dependencies 🤝 - Chore: Bump ui library Documentation 📓 - docs: Add migration note about unmapped mutable objects
Prefect 3.6.7 - LoopService #OpenToWork: 3+ Years Experience Looping
3.6.7 - LoopService #OpenToWork: 3+ Years Experience Looping Released on December 18, 2025 Enhancements ➕➕ Add support for AWS IAM authentication for PostgreSQL database Add generic typing support for Variable.get method Convert late_runs service to Docket perpetual function Convert repossessor service to Docket perpetual function Convert foreman service to...
Prefect 3.6.3 - That's JSON Bourne
Enhancements ➕➕ - Add -o json output option to prefect flow-run ls command - fix: allow pause_flow_run() to pause parent flow when called from task Bug Fixes 🐞 - Use acquisition service pattern for lease-based concurrency slots - fix: respect subflow attributes (log_prints, result_storage) when running inside task - fix: defer forward reference resolution...
Prefect 3.6.8 - On Exception! On Timeout! On Error and Failure! 🦌
3.6.8 - On Exception! On Timeout! On Error and Failure! 🦌 Released on December 24, 2025 New Features 🎉 Add prefect flow-run retry command Enhancements ➕➕ Add url property to server-side ReceivedEvent for automation templates Bug Fixes 🐞 Add timeout to Docket worker shutdown Prevent dictionary mutation during iteration in preprocess_schema Allow string...
Prefect 3.6.2 - The Missing Link
Enhancements ➕ - Add causal link from automation action events to triggering events Bug Fixes 🐞 - cap retry-after for concurrency limits to prevent excessive delays - accept numeric values for PREFECT_API_SERVICES_LATE_RUNS_AFTER_SECONDS - add work_queue_id to DeploymentResponse Development & Tidiness 🧹 - correct GitHub Actions conditional syntax in...