First, if you read the notice carefully, you’ll note that it says the code is fully migrated already; the transition work being noted there is only around non-code related items (websites, technical charter, etc.). As such, there is no reason to wait to start using Laminas.
Second, however, we should have taken that notice down weeks ago, as the websites have been complete for some time (though we’re still finalizing the technical charter). I’ve taken it down now so it doesn’t cause additional confusion!
Thank you so much for sorting this out for me.