[RELEASE] Python 3.9.9 hotfix release is now available

[Łukasz Langa]

Get it here: https://www.python.org/downloads/release/python-399/ <https://www.python.org/downloads/release/python-399/>
Python 3.9.9 is the eighth maintenance release of the legacy 3.9 series. Python 3.10 is now the latest feature release series of Python 3. Get the latest release of 3.10.x here <https://python.org/downloads/>.

3.9.9 was released out of schedule as a hotfix for an argparse regression in Python 3.9.8 which caused complex command-line tools to fail recognizing sub-commands properly. Details in BPO-45235 <https://bugs.python.org/issue45235>. There are only three other bugfixes in this release compared to 3.9.8. See the changelog <https://docs.python.org/release/3.9.9/whatsnew/changelog.html> for details on what changed.

Upgrading to 3.9.9 is highly recommended if you’re running Python 3.9.8.

The next Python 3.9 maintenance release will be 3.9.10, currently scheduled for 2022-01-03.

 <https://discuss.python.org/t/python-3-9-9-hotfix-release-is-now-available/11978#we-apologize-for-the-inconvenience-1>We apologize for the inconvenience

…and still hope you’ll enjoy the new release!

Your friendly release team,
Ned Deily @nad <https://discuss.python.org/u/nad>
Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower>
Łukasz Langa @ambv <https://discuss.python.org/u/ambv>
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