Use Python 3.12 as the default Python version #152
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Previously if a new app did not specify a Python version via a `runtime.txt` file, then the buildpack would default to the latest Python 3.11 release. Now the buildpack will use the latest Python 3.12 release. Use-cases involving new apps that aren't compatible with Python 3.12 will now need to specify Python 3.11 explicitly. However most apps should be compatible, since Python 3.12 was released a couple of months ago (2023-10-02), does not contain significant breaking changes over Python 3.11, and has been happily used by the python-getting-started project since 2023-10-04. Note: For the Python CNB, this change also affects existing apps, since the CNB no longer uses the "stick versions" approach used by the classic Python buildpack. See: https://docs.python.org/3.12/whatsnew/3.12.html GUS-W-14217496.
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Dec 5, 2023
This was referenced Dec 8, 2023
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Dec 8, 2023
## heroku/python ### Changed - Updated the default Python version from 3.11.6 to 3.12.1. ([#152](heroku/buildpacks-python#152) and [#154](heroku/buildpacks-python#154)) - Updated wheel from 0.41.3 to 0.42.0. ([#150](heroku/buildpacks-python#150)) Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>
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Previously if an app did not specify a Python version via a
runtime.txtfile, then the buildpack would default to the latest Python 3.11 release.Now the buildpack will use the latest Python 3.12 release.
Use-cases involving new apps that aren't compatible with Python 3.12 will now need to specify Python 3.11 explicitly.
However most apps should be compatible, since Python 3.12 was released a couple of months ago (2023-10-02), does not contain significant breaking changes over Python 3.11, and has been happily used by the python-getting-started project since 2023-10-04.
Note: For the Python CNB, this change also affects existing apps, since the CNB no longer uses the "stick versions" approach used by the classic Python buildpack.
See:
https://docs.python.org/3.12/whatsnew/3.12.html
heroku/heroku-buildpack-python#1516
GUS-W-14217496.