Another snapshot is now available. We've added new world generation below existing chunks, and blocks and fluids are now also part of the simulation distance setting. We also fixed a few bugs.
Keep in mind that we're still working on the world upgrades, so making a backup before upgrading is still a good idea.
Enjoy!
New Features in 21w44a
New world generation is now inserted under existing chunks when upgrading a world to the new world height
Added an Online options screen where you can now find the Realms Notifications option and Difficulty when on a server
Added an "Allow Server Listings" option to opt-out of having your name displayed in server listings
Changes in 21w44a
Sleeping now only resets the weather cycle if it was raining
Blocks and fluids are now also affected by simulation distance. It might be a good idea to test that the behavior of your Redstone contraptions remained the same
Optimized entity collisions
Technical Changes in 21w44a
Servers can now set property hide-online-players to true in order to not send a player list on status requests
When JFR profiling is started from an external source, the JFR events for network packets are now aggregated instead of one event per packet