Release 3.9.1.dev4: Nightly Development Release · PrefectHQ/prefect

What's Changed

Add Run action to the React flows list menu and flow page by @devin-ai-integration[bot] in #23354

fix(server): begin SQLite write transaction before reading automation buckets by @devin-ai-integration[bot] in #23471
Fix forked child processes exiting with code 1 because of QueueService at-exit drain by @devin-ai-integration[bot] in #23464
Serialize context on every ProcessPoolTaskRunner.submit() by @devin-ai-integration[bot] in #23376
fix(runner): schedule astop on SIGTERM instead of dropping the coroutine by @devin-ai-integration[bot] in #23346
fix(ui-v2): keep flows search input focused while filtering by @devin-ai-integration[bot] in #23338
Make the server compatible with SQLAlchemy 2.1 by @devin-ai-integration[bot] in #23201
Keep daily IntervalSchedule wall-clock time across DST when start is after the change by @devin-ai-integration[bot] in #23205
Allow the provisioned ECS execution role to create CloudWatch log groups by @Sagargupta16 in #23557
Fix GitRepository.pull_code() re-cloning a shallow clone on every new commit by @CassianoE in #23351

Fix flaky TestRemoteFileSystem tree-project tests by @devin-ai-integration[bot] in #23554
Fix flaky worker channel tests racing a 1s wall-clock deadline by @devin-ai-integration[bot] in #23450
Fix flaky TestWorkerLogging test caused by logging leak from prefect config CLI tests by @devin-ai-integration[bot] in #23297
Fix flaky StateFilter discovery cap search test by @devin-ai-integration[bot] in #23556
Fix background worker shutdown hang when worker cancellation is lost by @devin-ai-integration[bot] in #23511
Ignore Python 3.15 multi-threaded fork warning in forked child service test by @devin-ai-integration[bot] in #23562

docs: document microbatch task runs and partial success in PrefectDbtRunner by @devin-ai-integration[bot] in #23361

Cache get_timezones() by @tylerjthomas9 in #23531
Read metric triggers on metrics this version doesn't know by @nathandpeterson in #23513
Show a not-found error from prefect flow-run inspect for missing runs by @LuisFigueroaG in #23329
Bump dompurify from 3.4.16 to 3.4.17 in /ui-v2 by @dependabot[bot] in #23548
docs: document SQLite BEGIN IMMEDIATE contract in server AGENTS.md by @devin-ai-integration[bot] in #23560
docs: document _pendulum_call contract in src/prefect AGENTS.md by @devin-ai-integration[bot] in #23499

Full Changelog: 3.9.1.dev3...3.9.1.dev4