We will soon have client libraries at different quality levels. Let's make sure we reflect this information in our top-level ReadMe file the moment we cut the new release.
The update for PHP's ReadMe has already be done (as a Pull Request for now) and can be used as the canonical example to follow. The list below highlights the main changes to follow for this repo.
General
Listing Beta client libraries

Listing Alpha client libraries

Client Library per API section

Versioning section
