Release 3.8.8.dev4: Nightly Development Release · PrefectHQ/prefect

What's Changed

Fix UnboundLocalError in observer _get_k8s_jobs when the Kubernetes client can't be created by @devin-ai-integration[bot] in #23220
fix(client): parse HTTP-date and invalid Retry-After headers instead of crashing by @devin-ai-integration[bot] in #23278
Fix automation edit crash for flow-run triggers with non-state events by @devin-ai-integration[bot] in #23218
Pass the configured botname to NotifyMattermost by @Ayoubhm07 in #23281
fix(runner): stop truncating runner names that contain dots by @fbossiere in #23195
Fix nested schema required list leaking onto sibling properties in process_properties by @devin-ai-integration[bot] in #23192
Don't reschedule a flow run the server already finished on SIGTERM by @devin-ai-integration[bot] in #23244

fix(ui-v2 e2e): wait for Runs page URL sync instead of re-navigating by @devin-ai-integration[bot] in #23266
fix(tests): wait for LISTEN registration in automation notification test by @devin-ai-integration[bot] in #23265
Never hand out a stopped QueueService instance from instance() by @devin-ai-integration[bot] in #23172

Bump virtualenv from 21.7.12 to 21.7.13 by @dependabot[bot] in #23264
Bump brace-expansion in /ui by @dependabot[bot] in #23285
Preserve cache policy configuration when excluding inputs by @MohammadHijjawi97 in #23224
Bump tornado from 6.5.8 to 6.5.9 by @dependabot[bot] in #23254
Fix failed state losing metadata during retry by @uinstinct in #23256
fix rollback and commit hooks not working by @uinstinct in #23186
chore(deps): Update actions/setup-java action to v6 by @prefect-renovate[bot] in #23103
Match _ and % literally in log and event text search by @breken-ai in #23214
Resolve single-value block keys that start with "value" by @breken-ai in #23215
Migrate AGENTS.md/docs update workflows from Claude Code SDK to Devin by @devin-ai-integration[bot] in #23289

Full Changelog: 3.8.8.dev3...3.8.8.dev4