Since successfully sticking the landing for the migration from Python 2 (circa 3.6 or so), Python has been on a tear with a large number of small releases. These releases have cleaned up some warts in the “batteries included” modules and made huge improvements to the performance of the parser and run-time. There are also a few minor language features added; for instance, f-strings (which I like a lot) and the so-called walrus operator, mostly used for regular expression matching.
When Python improvements (and they are improvements, IMO) are discussed on sites like Hacker News, there is a lot of fear and trepidation. I am not sure why. These are rather minor changes, and they will take years to diffuse through the Python community. Overall, very little has changed.