New minecraft version. (1.15)

[Luksor]

They have a special page in wiki.vg that lists the changes of the new protocol: http://wiki.vg/Pre-release_protocol
Unfortunately they merge the changes into the main page soonish and then you can't really find the changes so well, so it's always a good idea to make a backup copy of the Pre-release protocol page.

They also have a special page for protocol changes: http://b.wiki.vg/
Unfortunately it's stuck on 1.5pre