Socially accepted #Python over the years (and for good reasons):
2020: Python 3.6 is the thing! Everything before that is ancient. (Remember https://python3statement.github.io/ ?)
2024: Python 3.9 has annotations from the future! May be Python 3.11 for some extra perf juice if all the dependencies are on board.
2025?: Python 3.13, serve me some sweet REPL, free-threading and JIT, please.