the end of the 2.7 branch 

Python 3.10.0a4 

Python 3.8.7 

Python 3.10.0a3 

Python 3.9.1 

Python 3.8.7rc1 

Python 3.9.1rc1 

Python 3.10.0a2 

Final head of the 3.5 branch 

Python 3.10.0a1