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metaflow

v2.19.29 Breaking

This release includes breaking changes for platform teams planning a safe upgrade.

Published 2mo Model Serving & MLOps
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

agents ai aws azure cost-optimization datascience
+13 more
distributed-training gcp generative-ai high-performance-computing kubernetes llm llmops machine-learning ml-infrastructure ml-platform mlops model-management python

ReleasePort's take

Moderate signal
editorial:auto 2mo

Metaflow 2.19.29 adds workflow concurrency for runner optimization and fixes pythonpath configuration, type hints, and UI issues. Release includes documentation improvements.

Why it matters: Adds workflow concurrency to optimize runner usage. Fixes pythonpath configuration and flow type hint issues. Routine upgrade; test in dev before rollout.

Summary

AI summary

Fixed typos, syntax errors, and a package name typo.

Changes in this release

Feature Medium

Adds workflow concurrency to optimize runner usage

Adds workflow concurrency to optimize runner usage

Source: llm_adapter@2026-05-21

Confidence: high

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Bugfix Medium

Fixes pythonpath configuration issues

Fixes pythonpath configuration issues

Source: llm_adapter@2026-05-21

Confidence: high

 —
Bugfix Medium

Fixes typos and syntax errors in Cards UI

Fixes typos and syntax errors in Cards UI

Source: llm_adapter@2026-05-21

Confidence: low

 —
Bugfix Medium

Corrects package name typo in MutableStep flow type hint

Corrects package name typo in MutableStep flow type hint

Source: llm_adapter@2026-05-21

Confidence: low

 —
Bugfix Medium

Adds airflow dependency documentation to README

Adds airflow dependency documentation to README

Source: llm_adapter@2026-05-21

Confidence: low

 —
Refactor Medium

Removes redundant _sfn_host_network variable

Removes redundant _sfn_host_network variable

Source: llm_adapter@2026-05-21

Confidence: low

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Full changelog

What's Changed

  • fix: corrected package name typo in MutableStep flow type hint by @agsaru in https://github.com/Netflix/metaflow/pull/3183
  • fix:Added dependency of airflow in README.md by @agsaru in https://github.com/Netflix/metaflow/pull/3134
  • added workflow concurrency to optimize runner usage by @agsaru in https://github.com/Netflix/metaflow/pull/3189
  • Removed the redundant '_sfn_host_network' variable by @agsaru in https://github.com/Netflix/metaflow/pull/3174
  • Fixed Typos and Syntax Errors in Cards UI by @agsaru in https://github.com/Netflix/metaflow/pull/3169
  • Fix more pythonpath stuff by @romain-intel in https://github.com/Netflix/metaflow/pull/3188

Full Changelog: https://github.com/Netflix/metaflow/compare/2.19.28...2.19.29

View diff on GitHub

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