Just to let folks know, we've made it possible for 1.19 clients to now join the network. You will still need to join on a 1.17 client or later, and the majority of the servers are still either 1.16 or 1.17 servers, so newer blocks won't yet work.
We will be withdrawing support for 1.17 clients in the near future as we will start to update servers to 1.18 and 1.19 across the network, though a separate announcement will come for that in due course.
Cheers all.