jsonschema.RefResolver is deprecated as of v4.18.0, in favor of the https://github.com/python-jsonschema/referencing library

[ioggstream]

I expect

• no DeprecationWarning
• Assess feature gap between python-jsonschema/referencing and RefResolver
• eventually file an issue against python-jsonschema or migrate

Instead

I got

../.tox/api/lib/python3.12/site-packages/connexion/json_schema.py:16
  /app/.tox/api/lib/python3.12/site-packages/connexion/json_schema.py:16: DeprecationWarning: jsonschema.RefResolver is deprecated as of v4.18.0, in favor of the https://github.com/python-jsonschema/referencing library, which provides more compliant referencing behavior as well as more flexible APIs for customization. A future release will remove RefResolver. Please file a feature request (on referencing) if you are missing an API for the kind of customization you need.
    from jsonschema import Draft4Validator, RefResolver

Notes

If someone has hints on the replacement, I'm willing to contribute

[chrisinmtown]

This warning bugs me too. Please see this open PR to address this issue: #2023

Unfortunately that PR has languished for quite some time. I don't know how to get the maintainers to jump in.

[jbbqqf]

Hi! Triaging older issues — I think this one has shipped and can be closed.

Evidence:

• PR #2023 ("Replace deprecated jsonschema.RefResolver with referencing.Registry", merged 2026-04-11, commit 68bc1ed) does exactly what this issue asks: it migrates connexion/json_schema.py off jsonschema.RefResolver onto the referencing.Registry API from python-jsonschema/referencing.
• The PR description explicitly calls out the same DeprecationWarning text you quoted: DeprecationWarning: jsonschema.RefResolver is deprecated as of v4.18.0 ....
• Verified on current main: grep -rn RefResolver connexion/ returns no hits, and connexion/json_schema.py now imports from referencing.

If you're still seeing the deprecation warning on a recent release, let me know the version and I'll dig further. Otherwise would you mind closing this out?

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Disclosure: I drafted this comment with help from Claude Code while triaging stale issues; the references above were verified manually.