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image: bump python from 3.12-slim to 3.14-slim - #27

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image: bump python from 3.12-slim to 3.14-slim#27
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dependabot/docker/python-3.14-slim

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@dependabot dependabot Bot commented on behalf of github Aug 13, 2026

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Bumps python from 3.12-slim to 3.14-slim.

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Bumps python from 3.12-slim to 3.14-slim.

---
updated-dependencies:
- dependency-name: python
  dependency-version: 3.14-slim
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file docker Pull requests that update docker code labels Aug 13, 2026
FlagshipDev added a commit that referenced this pull request Aug 14, 2026
… measurement (#32)

Four Dependabot pull requests (#27#30) had been open here since 12 August, all
four green. Three are worth taking and one breaks the image — and **none of them
could survive where they were opened**, which is the part worth saying.

This repository is derived. The publish step makes it exactly equal to the source
tree, and every file those four touch comes from there — the `Dockerfile` and four
of the workflows are copied, and `.github/workflows/ci.yml` is *generated* from
the source repository's own CI. Merging one here is a change that lives until the
next publication and then disappears without a word, and Dependabot reopens it.
So the bumps were applied upstream and arrive by the ordinary route.

**Taken**, each SHA checked against the tag it claims to be, through the API
rather than trusted from the diff:

* `actions/checkout` v4 → **v7.0.1**
* `actions/setup-python` v5 → **v7.0.0**
* `actions/upload-artifact` v4 → **v7.0.1**

The third is taken on weaker evidence and this says so: it appears only in
`scorecard.yml`, which by a decision written into that file runs on `push: main`
and weekly and never on a pull request — so #28 being green proved nothing about
the bump inside it. It is taken because the next push to `main` exercises it and
a failure there is loud rather than silent.

**Declined:** `python:3.12-slim` → `3.14-slim`. `requires-python` is
`>=3.12,<3.13` and the build stage installs with the base image's interpreter, so
the image does not build:

```
ERROR: Package 'hullwork' requires a different Python: 3.14.7 not in '<3.13,>=3.12'
```

Its checks were green because no workflow that runs on a pull request builds the
image — only the release and edge workflows do, on a tag and on a schedule. The
first sign would have been a release failing.

The Dockerfile already said *"Dependabot proposes the bump; a human takes it"*,
which is a rule that depends on the human being awake. There is now a test tying
the base image of **both stages** to `requires-python`, so the same proposal fails
in `gates` in three seconds instead of at the next release. It reads both files
and restates neither — verified by rewriting it to hard-code the version, which
fails.

Three reintroductions, three caught.

Signed-off-by: Javier Miralles Rancaño <68760931+FlagshipDev@users.noreply.github.com>
@FlagshipDev

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Declined, and measured rather than assumed.

requires-python is >=3.12,<3.13, and the build stage installs with the base image's own interpreter. On python:3.14-slim:

ERROR: Package 'hullwork' requires a different Python: 3.14.7 not in '<3.13,>=3.12'

So this image does not build. The checks on this pull request were green because no workflow that runs on a pull request builds the image — only the release and edge workflows do, on a tag and on a schedule, so the first sign would have been a release failing.

The Dockerfile already said "Dependabot proposes the bump; a human takes it", which is a rule that depends on the human being awake. There is now a test tying the base image of both stages to requires-python (#32), so the same proposal fails in gates in three seconds instead. When this package supports a newer Python, that constraint moves first and the bump becomes takeable — the guard reads both files, so nothing has to be remembered.

Thanks for raising it: the version really has moved, and the gap it exposed was ours.

@dependabot @github

dependabot Bot commented on behalf of github Aug 14, 2026

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OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

@dependabot
dependabot Bot deleted the dependabot/docker/python-3.14-slim branch August 14, 2026 08:42
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