type_all_the_things: bool = True

We're thrilled to announce a major milestone: prefect is now 100% type complete! 🎉 Every public interface in the library now includes comprehensive type annotations, bringing significant improvements to the developer experience. This means you'll enjoy:

• Enhanced autocompletion in your IDE, helping you write code faster and with fewer errors
• Robust static analysis through tools like mypy and pyright, catching potential issues before runtime
• Clear, unambiguous type signatures that serve as living documentation for the entire codebase

This achievement represents our commitment to building a more maintainable, reliable, and developer-friendly Python library.

Enhancements ➕➕

• Allow servers to start with no background services by @cicdw in #16693
• Expose more SALAlchemy settings by @cicdw in #16742
• Create model for SQLAlchemy connection arguments by @cicdw in #16762
• Update SLA logic to use declarative endpoint by @dylanbhughes in #16755
• Add prefect server services CLI commands by @zzstoatzz in #16706
• Add provisioner for Coiled push work pools by @ntabris in #16736

Bug Fixes 🐞

• Fix SendgridEmail code example by @jakekaplan in #16677
• Fix connection string handling when individual components are provided via settings by @desertaxle in #16680
• Handles the instrumentation case where a future is only used to wait_for by @chrisguidry in #16709
• Fix bug where a server can't be stopped and restarted without waiting several seconds by @desertaxle in #15729
• Fixes to Prefect Basic Auth by @cicdw in #16735
• Switch drain_all call to be called from new thread instead of global loop thread by @jeanluciano in #16739
• Ensures that QueueService instances are unique within types by @chrisguidry in #16751

Integrations & Dependencies 🤝

• Bump lower bound on pydantic to 2.9 by @cicdw in #16691

Development & Tidiness 🧹

• Remove DB interface from _on_start by @cicdw in #16687
• Improve typing in prefect.server.events by @desertaxle in #16692
• Improve type completeness of prefect.server.services by @desertaxle in #16701
• Delete old create integrations cards script by @desertaxle in #16704
• Improve typing in prefect.results by @desertaxle in #16714
• Improve typing in server events - part deux by @desertaxle in #16715
• Improve typing of prefect.settings by @desertaxle in #16719
• Task engine typing by @zzstoatzz in #16731
• Raise type completeness on prefect.inputs to 100% by @desertaxle in #16740
• Raise type completeness to 95% by @desertaxle in #16723
• Raise type completeness of prefect.server to 100% by @desertaxle in #16729
• Raise type completeness to 99.8% by @desertaxle in #16734
• Add type completeness pre-commit hook by @desertaxle in #16744
• Add type hints to CoiledPushProvisioner by @desertaxle in #16745
• Deprecate custom JsonPatch implementation by @desertaxle in #16743

Documentation 📓

• Improve the intro to the quickstart tutorial by @daniel-prefect in #16664
• Update Intros in Docs by @aaazzam in #16674
• Update index.mdx by @aaazzam in #16675
• Remove the promise that the quickstart only takes five minutes to complete by @daniel-prefect in #16669
• Update prefect-yaml.mdx by @adrianoresende in #16688
• Docs quickstart feedback by @kevingrismore in #16683
• Fix silly typo by @cicdw in #16703
• Move quickstart to immediately before the 'schedule a flow' tutorial in the docs by @daniel-prefect in #16705
• Add state transition table to 'Manage states' doc and link from the debug tutorial by @daniel-prefect in #16668
• Add an ML pipeline tutorial by @daniel-prefect in #16632
• Use Python 3.9 syntax and don't test 3rd-party dependencies by @daniel-prefect in #16730
• Add in documentation for Service Level Agreements by @sam-phinizy in #16663
• Use the flow from the quickstart as the basis for the deployment in the scheduling tutorial by @daniel-prefect in #16721
• Add correct probe config to gcloud example command by @cicdw in #16738
• Docs: publish static outbound IP address for managed execution by @parkedwards in #16741
• Update settings docs with basic auth by @cicdw in #16753

New Contributors

• @adrianoresende made their first contribution in #16688
• @ntabris made their first contribution in #16736

Full Changelog: 3.1.12...3.1.13