Note: python 3.8.7 is a bugfix release version for the 3.8 series which was superseded by Python 3.9
We know that Python 3.8.7 is the seventh maintenance release of Python 3.8 series .
If you want to download it then go get it here ( official site):
https://www.python.org/downloads/release/python-387/
Python developer now planned for python 3.8.8 version in February 2021, but this version is maintenance releases for the 3.8 series

What’s new in python 3.8.7 ?
The Python 3.8.7 series contains much different new features and optimizations over 3.7 series like Python 3.8.7 provides full support for Apple Silicon Macs and Big Sur, including building natively on Apple Silicon Macs and support for universal2 binaries.
Note that as compared to 3.8.6 series this release also contains all changes present in 3.8.7rc1.
Some FAQ about python 3.8
Yes. Python version 2.7, 3.5, 3.6, 3.7, 3.8 and also PyPy come with pip
Must remember that Following points:
Python 3.8.7 version cannot be used on Windows XP or earlier version and also Python 3.9.1 version cannot be used on Windows 7 or earlier.
Summary :
In this article we saw what is exactly new in python 3.8.7 series as compair to 3.7 so any query about this section then please free to ask me
BEST OF LUCK!!!