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why: CPython 3.15.0 was released on 2026-10-09. mise resolves the bare `3.15` to the newest installed 3.15.x, so the pin needs no patch bumps. mise now uses Python 3.15 first, with 3.14 through 3.10 still installed. See also: - https://www.python.org/downloads/release/python-3150/ - https://docs.python.org/3.15/whatsnew/3.15.html
why: uv uses this as the default interpreter for `uv sync` and `uv run`. See also: - https://docs.python.org/3.15/whatsnew/3.15.html
why: Run the test job on the current CPython release. what: - replace 3.14 with 3.15 in the `build` job matrix of tests.yml - leave the `release` job on 3.14 The suite does not pass on 3.15 yet: `uv run py.test` reports 14 failures in tests/cli/test_formatter.py. See also: https://devguide.python.org/versions/
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Summary
Makes Python 3.15 the default interpreter and the interpreter of the CI test job. CI on 3.15 is expected to fail until the formatter tests are fixed for 3.15: 14 tests in
tests/cli/test_formatter.pyfail withAttributeError: property '_theme' of 'VcspullHelpFormatter' object has no setter. This branch does not fix them.Changes
.tool-versions:python 3.15 3.14 3.13 3.12 3.11 3.10, so mise uses 3.15 first..python-version:3.14to3.15, souv syncanduv runpick 3.15..github/workflows/tests.yml: thebuildjob matrix goes from['3.14']to['3.15']. Thereleasejob stays on 3.14.Refs #580
Testing
$ uv run py.testOn Python 3.15.0 this reports 14 failed, all in
tests/cli/test_formatter.py, and the rest passing. The same command on 3.14 reports no failures.