One last point: I'd suggest starting the third sentence without the "And" or combining the sentences using a semicolon. Also, after reading over it again, I realized it would be more grammatically correct to write "using it has emitted" rather than "using it emitted". Here's a couple of examples:

1. As of Python 3.1, it was deprecated and ignored. Using it has emitted a :exc:DeprecationWarning since Python 3.8.

2. As of Python 3.1, it was deprecated and ignored; using it has emitted a :exc:DeprecationWarning since Python 3.8.

Option (2) is likely more formally correct, but I think either would be fine.

Note: As a general English grammar rule, it's perfectly acceptable to start sentences with "And" (https://www.merriam-webster.com/words-at-play/words-to-not-begin-sentences-with), but it's typically discouraged to string together consecutive "and"s, even if they're separated by a period.

In the future if you'd like me to review any documentation PRs or news entries for help with English grammar, I'd be happy to help! Feel free to request a review or @ mention me.

My primary areas of interest recently have been in asyncio, concurrent.futures, and subinterpreters, but I'm always glad to help with improving our documentation and news entries when I have the chance.

Also, I think your English skills are actually quite decent @methane, especially for someone who's native language is entirely dissimilar to English. I can generally understand the message you're trying to convey, there's just a few grammatical components that could be improved to make it more formally correct.