# dependabot-core Python 3.9 support dropped updater runtime

Status: search-observed
Product: GitHub
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/dependabot-core-python-3-9-support-dropped-updater-runtime
Machine JSON: https://gitdocs.org/api/fixes/dependabot-core-python-3-9-support-dropped-updater-runtime.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

The action's host runtime and runner compatibility are supplied by the CI platform, not by the repository's package.json or source tree.

## Fix

```
Verifier executes on the target host matrix and checks a forward-compatible action/runtime change. Verify the supported asynchronous/current path and preserve idempotency.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- dependabot-core Python 3.9 support dropped updater runtime
- site:github.com/dependabot/dependabot-core Python 3.9 Dependabot updater

## Sources

- GitHub deprecations index: https://github.blog/changelog/type/deprecations/