Airflow 3.4.1

Issues

• Deliver the per-run log ID template to workers via TIRunContext

  area:APIarea:loggingarea:providersarea:task-sdkprovider:elasticsearchprovider:opensearch
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  apache/airflow#69688·jason810496 opened Jul 10, 2026 · Updated Oct 18, 2026
  3

  

• Let providers contribute tables to 'db clean'

  area:CLIarea:providersprovider:celery
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  apache/airflow#70639·uranusjr opened Jul 28, 2026 · Updated Oct 18, 2026
  4

• Fix non-deterministic execution order of asset-triggered dag runs in scheduler

  area:schedulertype:bug-fix
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  apache/airflow#70881·dshemetov opened Jul 31, 2026 · Updated Oct 21, 2026
  4

• Redact Connection extra fields that providers declare as secrets

  area:providersbackport-to-v3-4-testprovider:microsoft-azure
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  apache/airflow#73797·JelyFishhhhhh opened Sep 27, 2026 · Updated Oct 29, 2026
  15

• Catch format-string arguments passed to exception constructors

  area:dev-toolschangelog:skip
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  apache/airflow#73827·rjgoyln opened Sep 28, 2026 · Updated Oct 18, 2026
  4

• Remove duplicate dag_run (state, dag_id) index on MySQL

  area:db-migrationskind:documentationneed workflow approvaltype:bug-fix
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  apache/airflow#73920·manish1337 opened Sep 29, 2026 · Updated Oct 26, 2026
  3

• Fix DagRun.conf exponent-form float handling in PostgreSQL JSONB

  need workflow approvaltype:bug-fix
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  apache/airflow#74093·kadubhumika opened Oct 2, 2026 · Updated Oct 26, 2026
  6

• Fix dag.test() failing for task ids with non-ASCII characters

  area:APIarea:task-sdktype:bug-fix
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  apache/airflow#74472·per-andersen opened Oct 8, 2026 · Updated Oct 18, 2026
  6

• Stop forked children re-exporting the parent's OTel metrics

  backport-to-v3-4-test
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  apache/airflow#71855·dstandish opened Aug 19, 2026 · Updated Oct 23, 2026
  1

• Fix deadline callback data encoding in migration 0094 (scheduler CrashLoopBackOff)

  area:db-migrationsarea:deadline-alertsbackport-to-v3-4-testready for maintainer review
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  apache/airflow#69985·seanmuth opened Jul 16, 2026 · Updated Oct 23, 2026
  14

• Fix scheduler crash when resetting orphaned task instances

  area:schedulerbackport-to-v3-4-testtype:bug-fix
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  apache/airflow#71348·akhilpratap1991 opened Aug 9, 2026 · Updated Oct 23, 2026
  3

• Return 404 when a DagRun disappears during task API writes

  area:APIarea:task-sdkbackport-to-v3-4-testtype:bug-fix
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  apache/airflow#72907·1fanwang opened Sep 10, 2026 · Updated Oct 24, 2026
  10

• Keep operator extra links viewable for previous task tries

  area:dag-processorarea:task-sdkbackport-to-v3-4-testtype:bug-fix
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  apache/airflow#73315·amoghrajesh opened Sep 18, 2026 · Updated Oct 24, 2026
  11

  

• UI: Info tooltip when a Dag's active runs exceed max_active_runs

  area:airflow-ctlarea:APIarea:translationsarea:UIbackport-to-v3-4-testtranslation:default
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  apache/airflow#73693·seanmuth opened Sep 24, 2026 · Updated Oct 27, 2026
  30

• Improve DAG tag length validation error

  area:task-sdkbackport-to-v3-4-test
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  apache/airflow#73741·Dattuog opened Sep 25, 2026 · Updated Oct 24, 2026
  4

• Stop killing callback processors for zipped Dags on bundle refresh

  area:DAG-processingbackport-to-v3-4-testtype:bug-fix
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  apache/airflow#73979·bunnysayzz opened Sep 30, 2026 · Updated Oct 24, 2026
  4

• Show audit log link when task logs are unavailable

  backport-to-v3-4-test
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  apache/airflow#72901·emecii opened Sep 10, 2026 · Updated Oct 24, 2026
  3

• Hide unneeded Dag Details tabs

  area:airflow-ctlarea:APIarea:UIbackport-to-v3-4-test
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  apache/airflow#74368·bbovenzi opened Oct 6, 2026 · Updated Oct 24, 2026·Draft
  11

• Forward strict through LazySelectSequence serialization

  area:dag-processorbackport-to-v3-4-testready for maintainer reviewtype:bug-fix
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  apache/airflow#68662·naruto-lgtm opened Jun 17, 2026 · Updated Oct 24, 2026
  23

  

• Log and audit when the partitioned Dag run per-tick cap is reached

  area:schedulerbackport-to-v3-4-test
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  apache/airflow#71072·Lee-W opened Aug 4, 2026 · Updated Oct 26, 2026
  59

  

• Add dag.schedule_overdue_seconds metric for Dags held back by max_active_runs

  area:schedulerbackport-to-v3-4-testready for maintainer review
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  apache/airflow#74854·Abdel39 opened Oct 16, 2026 · Updated Oct 26, 2026
  4

• Reject supervisor responses that belong to a different request

  area:task-sdkbackport-to-v3-4-testneed workflow approvaltype:bug-fix
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  apache/airflow#74010·hkc-8010 opened Oct 1, 2026 · Updated Oct 30, 2026
  2

• Keep reschedule-mode sensors from failing on a stale executor success

  area:schedulerbackport-to-v3-4-testtype:bug-fix
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  apache/airflow#74212·canyang25 opened Oct 5, 2026 · Updated Oct 26, 2026
  3

• Bound the heartbeat-timeout purge to max_tis_per_query per loop

  area:schedulerbackport-to-v3-4-test
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  apache/airflow#75010·vatsrahul1001 opened Oct 18, 2026 · Updated Oct 27, 2026
  13

• Fix LocalExecutor deadlock when a workload put blocks

  area:Executors-corebackport-to-v3-4-test
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  apache/airflow#75086·potiuk opened Oct 19, 2026 · Updated Oct 26, 2026
  3