Are the notes at the top of README.md still accurate?

[mindshoot]

At the top of the README.md file it says:

NOTE: This project is under early stage of development. The public APIs may break version by version.
...
trio: An alternative implementation of asynchronous IO stack for Python, with focus on cancellation scopes and task groups called "nursery".

Am I right in thinking that this project is now pretty mature and stable? And with task groups now in asyncio for python 3.11, where do you see things standing on the trio / asyncio debate?

Thanks!
Tim