When does support for Python 3.15 end?
Python 3.15 gets active support until 9 October 2028 and security updates until 31 October 2031.
When does support for Python 3.14 end?
Python 3.14 gets active support until 1 October 2027 and security updates until 31 October 2030.
When does support for Python 3.13 end?
Python 3.13 gets no active support any more and security updates until 31 October 2029.
Which Python version should I use?
For new installations Python 3.15. Older branches only while they still get security updates.