This release begins a concerted effort to improve our public interface's type completeness; we hope that this will make the experience of authoring Prefect flows within IDEs more robust and allow for better autocomplete. We welcome all contributions to this effort - [follow along with this issue to get involved](https://github.com/PrefectHQ/prefect/issues/16292)!
Enhancements ➕➕
* expose `job_variables` in `runtime.flow_run` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16124
* Add `aserve` utility for serving multiple flows from an asynchronous context by GitAlexxx in https://github.com/PrefectHQ/prefect/pull/15972
* Add work-pool id/name to labels donated by worker to flow run by bunchesofdonald in https://github.com/PrefectHQ/prefect/pull/16252
* Raise informative errors when failing to bootstrap telemetry by bunchesofdonald in https://github.com/PrefectHQ/prefect/pull/16253
* remove `sync_compatible` from `build_server` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16314
Bug Fixes 🐞
* Fix setting task states with duplicate timestamps by GalLadislav in https://github.com/PrefectHQ/prefect/pull/16145
* fix `__getattr__` conflict in `prefect.docker.__init__` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16172
* Fix result store serialization to include all necessary attributes by desertaxle in https://github.com/PrefectHQ/prefect/pull/16189
* Support flow deletion in Prefect Python client by paulusaptus in https://github.com/PrefectHQ/prefect/pull/16308
Integrations & Dependencies 🤝
* bump required minor versions of core by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16192
* Instrument task runs by jeanluciano in https://github.com/PrefectHQ/prefect/pull/15955
Development & Tidiness 🧹
* clean up repo root by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16177
* rm discourse references by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16176
* limit event name length by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16097
* Add `from_profiles_yml` to dbt `TargetConfigs` by kevingrismore in https://github.com/PrefectHQ/prefect/pull/16178
* Rename `prefect.server.database.migrations` to `prefect.server.database._migrations` by desertaxle in https://github.com/PrefectHQ/prefect/pull/16214
* Improve typing completeness of internal base models by desertaxle in https://github.com/PrefectHQ/prefect/pull/16217
* update typing in `blocks.abstract` and `concurrency` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16212
* strict type client modules by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16223
* Bring ORM models and Alembic migrations in sync by mjpieters in https://github.com/PrefectHQ/prefect/pull/16221
* Include info about registering built-in blocks by pypae in https://github.com/PrefectHQ/prefect/pull/16244
* Move UI pre-commit hooks from `husky` to `pre-commit` by desertaxle in https://github.com/PrefectHQ/prefect/pull/16246
* make `flow` and `task` decorators pass strict typing by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16251
* use `uv` to install dependencies in the `Dockerfile` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16235
* fruitful typing scouring by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16255
* [typing] prefect.client by mjpieters in https://github.com/PrefectHQ/prefect/pull/16265
* OTEL flow run context propagation with Labels by jeanluciano in https://github.com/PrefectHQ/prefect/pull/16122
* Link Docker build `NODE_VERSION` to `.nvmrc` by desertaxle in https://github.com/PrefectHQ/prefect/pull/16282
* fix typing and route in flow run logs download api ref by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16281
* avoiding timing issue in flaky test by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16275
* Add a new tutorial which shows how to debug a failing pipeline by daniel-prefect in https://github.com/PrefectHQ/prefect/pull/16225
* Adds note to rate limits doc linking to client settings by EmilRex in https://github.com/PrefectHQ/prefect/pull/16286
* [typing] fix typing related to `prefect.main` by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16288
* 3.9 compat for `debug.mdx` tutorial by zzstoatzz in https://github.com/PrefectHQ/prefect/pull/16296
* Include more helpful output in type completeness check by desertaxle in https://github.com/PrefectHQ/prefect/pull/16327
* Temporarily disable passing worker labels to flow run by jakekaplan in https://github.com/PrefectHQ/prefect/pull/16339
* Add type completeness check to CI by desertaxle in https://github.com/PrefectHQ/prefect/pull/16194
* improve typing of variables.py by aaazzam in https://github.com/PrefectHQ/prefect/pull/16216
* Use SQLAlchemy 2.0 style for ORM models, make typing complete by mjpieters in https://github.com/PrefectHQ/prefect/pull/16230
* [typing] highlighters.py by aaazzam in https://github.com/PrefectHQ/prefect/pull/16259
* [typing] Update migration.py by aaazzam in https://github.com/PrefectHQ/prefect/pull/16261
efect/pull/16266
* [typing] Use correct type narrowing construct by mjpieters in https://github.com/PrefectHQ/prefect/pull/16269
* [typing] prefect.utilities by mjpieters in https://github.com/PrefectHQ/prefect/pull/16298
New Contributors
* GitAlexxx made their first contribution in https://github.com/PrefectHQ/prefect/pull/15972
* mjpieters made their first contribution in https://github.com/PrefectHQ/prefect/pull/16221
* pypae made their first contribution in https://github.com/PrefectHQ/prefect/pull/16244
* paulusaptus made their first contribution in https://github.com/PrefectHQ/prefect/pull/16308
**Full Changelog**: https://github.com/PrefectHQ/prefect/compare/3.1.5...3.1.6