v5.27.0

ℹ️ Information

• Remove Python 3.9 support (#1525) @elliotgunton

🐞 Bug Fixes

• Fix type for artifact_gc in Workflow (#1533) @elliotgunton

📔 Documentation

• Add an example for a CLI app also used as a Hera script (#1536) @elliotgunton

⛏ Dependency Upgrades

• Bump urllib3 from 2.5.0 to 2.6.0 (#1538) @dependabot[bot]
• Bump the minors-patches group with 4 updates (#1542) @dependabot[bot]
• Bump actions/upload-artifact from 5 to 6 (#1539) @dependabot[bot]
• Bump the minors-patches group across 1 directory with 4 updates (#1535) @dependabot[bot]
• Bump pytest from 8.4.2 to 9.0.1 (#1532) @dependabot[bot]
• Bump actions/checkout from 5 to 6 (#1529) @dependabot[bot]

🚧 Tasks

• feat: add timeout 60 sec to prevent indefinite waiting (#1540) @immanuwell
• Update macOS version in CI workflow (#1541) @sambhav

v5.26.1

NOTE

This release is the same as 5.26.0, which was not published to PyPI due to a bug in third-party libraries used to build and publish the package. 5.26.0 release notes copied below.

---

ℹ️ Information

• Update models for 3.7 compatibility (#1519) @elliotgunton

📔 Documentation

• Fix runner_artifacts example to load from file (#1518) @elliotgunton
• Fix Hera runner output artifact example (#1509) @elliotgunton

⛏ Dependency Upgrades

• Bump the minors-patches group with 3 updates (#1520) @dependabot[bot]
• Bump actions/upload-artifact from 4 to 5 (#1517) @dependabot[bot]
• Bump pytest-cov from 6.2.1 to 7.0.0 (#1513) @dependabot[bot]
• Bump types-requests from 2.32.4.20250809 to 2.32.4.20250913 (#1512) @dependabot[bot]
• Bump types-pyyaml from 6.0.12.20250822 to 6.0.12.20250915 (#1511) @dependabot[bot]
• Bump the minors-patches group with 7 updates (#1510) @dependabot[bot]

v5.26.0

ℹ️ Information

• Update models for 3.7 compatibility (#1519) @elliotgunton

📔 Documentation

• Fix runner_artifacts example to load from file (#1518) @elliotgunton
• Fix Hera runner output artifact example (#1509) @elliotgunton

⛏ Dependency Upgrades

• Bump the minors-patches group with 3 updates (#1520) @dependabot[bot]
• Bump actions/upload-artifact from 4 to 5 (#1517) @dependabot[bot]
• Bump pytest-cov from 6.2.1 to 7.0.0 (#1513) @dependabot[bot]
• Bump types-requests from 2.32.4.20250809 to 2.32.4.20250913 (#1512) @dependabot[bot]
• Bump types-pyyaml from 6.0.12.20250822 to 6.0.12.20250915 (#1511) @dependabot[bot]
• Bump the minors-patches group with 7 updates (#1510) @dependabot[bot]

v5.25.1

🐞 Bug Fixes

• Optionally import httpx in async service (#1508) @jeongukjae

v5.25.0

⭐️ Enhancements

• Support data, http, resource, and suspend templates in decorator syntax (#1501) @jeongukjae
• Add async service functions (#1494) @elliotgunton
• Add optional artifact support in Hera runner (#1497) @elliotgunton

🐞 Bug Fixes

• Allow Annotated on pydantic io containing non-Hera metadata (#1496) @elliotgunton

⛏ Dependency Upgrades

• Bump actions/setup-python from 5 to 6 (#1506) @dependabot[bot]
• Bump types-pyyaml from 6.0.12.20250809 to 6.0.12.20250822 (#1502) @dependabot[bot]
• Bump the minors-patches group with 3 updates (#1503) @dependabot[bot]

v5.24.0

⭐️ Enhancements

• Allow initialisation of templates in Steps/DAG contexts (#1474) @elliotgunton
• Add set_next_defaults function for Task and allow multiple on values (#1457) @elliotgunton
• Format Python code output from Hera CLI using black (#1465) @jeongukjae
• Add get_outputs_as_arguments function for tasks/steps (#1451) @elliotgunton

🐞 Bug Fixes

• Add Hera RetryStrategy to TemplateMixin and Workflow (#1455) @elliotgunton

📔 Documentation

• Add example using with_items for step/dag decorators (#1490) @elliotgunton
• Add "Types of Workflows" section to the walkthrough (#1487) @elliotgunton
• Update resources examples and add large_artifacts_in_init_container example (#1459) @elliotgunton
• Fix command for complex_expr example (#1449) @elliotgunton

⛏ Dependency Upgrades

• Bump the minors-patches group with 4 updates (#1491) @dependabot[bot]
• Bump types-pyyaml from 6.0.12.20250516 to 6.0.12.20250809 (#1476) @dependabot[bot]
• Bump types-requests from 2.32.4.20250611 to 2.32.4.20250809 (#1477) @dependabot[bot]
• Bump ruff from 0.12.7 to 0.12.8 in the patches group (#1478) @dependabot[bot]
• Bump actions/checkout from 4 to 5 (#1479) @dependabot[bot]
• Bump ruff from 0.12.4 to 0.12.7 in the patches group (#1467) @dependabot[bot]
• Bump cappa from 0.28.1 to 0.29.1 (#1468) @dependabot[bot]
• Bump build from 1.2.2.post1 to 1.3.0 (#1469) @dependabot[bot]

🚧 Tasks

• Fix doubled volume class names; add deprecated aliases (#1481) @ketanjani21
• Fix incorrect types and comments throughout mixins (#1472) @elliotgunton
• Update on-cluster testing (#1466) @elliotgunton

v5.23.0

⭐️ Enhancements

• Preserve folder structure when using CLI code conversion; add --flatten flag (#1443) @elliotgunton
• Add YAML-to-Python converter to CLI (#1440) @elliotgunton

🐞 Bug Fixes

• Fix module for script runners generated by CLI and from __main__ (#1445) @elliotgunton
• Fix a mypy regression in IO mixins (#1442) @alicederyn
• Set Artifact name to None by default (#1441) @elliotgunton
• Fix processing for model volumes/volume mounts (#1439) @elliotgunton

📔 Documentation

• Generate all remaining valid upstream examples (#1444) @elliotgunton

⛏ Dependency Upgrades

• Bump the patches group across 1 directory with 3 updates (#1437) @dependabot[bot]

v5.22.0

ℹ️ Information

• Bump pydantic minimum version to v1.10.15 (#1434) @jaseemabid

⭐️ Enhancements

• Force type checker to use Pydantic's V1 API instead (#1432) @jaseemabid

📔 Documentation

• Add a parquet/pandas example (#1431) @elliotgunton

⛏ Dependency Upgrades

• Bump ruff from 0.12.0 to 0.12.1 in the patches group (#1433) @dependabot[bot]
• Bump pytest from 8.4.0 to 8.4.1 in the patches group (#1430) @dependabot[bot]
• Bump varname from 0.14.0 to 0.15.0 (#1429) @dependabot[bot]
• Bump cappa from 0.27.3 to 0.28.0 (#1427) @dependabot[bot]

v5.21.1

📔 Documentation

• Remove unsupported auto-hyperlinking from docstrings (#1425) @elliotgunton
• Remove '+' on write mode (#1426) @elliotgunton

v5.21.0

⭐️ Enhancements

• Allow artifact optional names (#1405) @elliotgunton
• Add custom Artifact serialisation (#1367) @elliotgunton
• Add custom Parameter serialisation (#1366) @elliotgunton

📔 Documentation

• Improve API Reference pages (#1415) @elliotgunton
• Add Best Practices user guide (#1401) @elliotgunton
• Update experimental examples (#1411) @elliotgunton
• Update loops examples and sidebar layout (#1410) @elliotgunton
• Update steps examples (#1409) @elliotgunton
• Update dag examples (#1407) @elliotgunton
• Update script and artifact examples (#1406) @elliotgunton
• Update user guides (#1399) @elliotgunton
• Update walkthrough (second half) (#1393) @elliotgunton
• Revamp walkthrough (roughly halfway) (#1386) @elliotgunton
• Use a readiness_probe on daemon example (#1392) @elliotgunton
• Streamline quick start guide (#1383) @elliotgunton
• YAML code converter HEP (#1374) @elliotgunton
• Add custom serialisation sections to script annotations guide (#1368) @elliotgunton
• Add upstream scripts-python example (#1372) @elliotgunton
• Add 2025 developer survey blog post (#1362) @elliotgunton
• Add Sebastian's talk from ArgoCon EU 2025 (#1357) @elliotgunton
• Add a recursive dag example (#1351) @elliotgunton

⛏ Dependency Upgrades

• Update all deps (#1423) @elliotgunton
• Bump urllib3 from 2.4.0 to 2.5.0 (#1424) @dependabot[bot]
• Bump the patches group across 1 directory with 4 updates (#1417) @dependabot[bot]
• Bump cappa from 0.26.6 to 0.27.2 (#1364) @dependabot[bot]
• Run poetry update (#1380) @elliotgunton
• Update deps and examples (#1363) @elliotgunton