Fix import error when upgrading structlog to 25.5.0+ (#57335)
Fix connection retrieval in DagProcessorManager for bundle initialization (#57459)
Fix incorrect task instance counts displayed in task group headers (#55670)
Fix task retry execution after tasks are killed by external signals (#55767)
Fix triggerer errors after Airflow 2 to 3 migration (#55884)
Fix tasks unable to access triggering_user_name context variable (#56193)
Fix outlet event extra data being empty in task instance success listener callbacks (#57031)
UI: Fix panel button spacing and alignment issues (#57062)
UI: Fix broken grid view links for tasks with retries (#57097)
Fix DAG processor crash when renaming DAG tag case on MySQL (#57113)
Fix iteration errors when using ObjectStoragePath (#57156)
Fix auto-refresh not working on Required Actions page (#57207)
Fix DAG processor crash by ignoring callbacks from other bundles (#57330)
Fix asset name text overflow in DAG list view (#57363)
Fix memory leak caused by repeated SSL context creation in API client (#57374)
Fix performance issues loading DAG list page with many DAGs (#57444)
Fix text selection jumping unexpectedly in log viewer (#57453)
Fix DAG documentation pane not scroll-able when content is too long (#57518)
Fix incorrect macro listings in template reference documentation (#57529)
Fix Human-In-The-Loop operators failing when using notifiers (#57551)
Fix n+1 query issues in XCom API endpoints (#57554)
Fix n+1 query issues in Event Logs API endpoint (#57558)
Fix n+1 query to fetch tags in the dags list page (#57570)
Optimize database query to prevent "Out of sort memory" errors with many DAG versions (#57042)
Optimize DAG list query for users with limited access (#57460)
Optimize dynamic DAG updates to avoid loading large serialized DAGs (#57592)
Reduce serialized DAG size by optimizing callback serialization in default_args (#57397)

Miscellaneous

UI: Improve global navigation visual design, interaction, and accessibility (#57565)
UI: Add button to download all task logs at once (#56771)
UI: Add timestamp column to XCom viewer and standardize task instance columns (#57447)
UI: Improve highlighting of selected task instances and edges in grid view (#57560)
Improve retry logic by migrating from retryhttp to tenacity library (#56762)
Improve exception logging for task instance heartbeat failures (#57179)
Add Content-Type header to Task SDK API requests (#57386)
Log execution API server URL at task startup (#57409)
Reduce log noise by changing "Connection not found" from error to debug level (#57548)
Add task_display_name alias in event log API responses (#57609)
Improve Pydantic model validation strictness in serialization (#57616)
Fix systemd service files issues (#57231)

Doc Only Changes

Improve plugin system documentation for clarity and completeness (#57068)
Improve clarity on api workers recommendation in docs (#57404)
Fix instance_name in UI docs (#57523)
Fix airflow macros list in template document (#57529)