WARNING: This old version is vulnerable to the Log4Shell exploit. Do not use this in multiplayer without a patch.
Added Reach: Allows you to reach further.
Added proper descriptions to ExtraElytra’s settings.
Separated ExtraElytra’s “Easy fly” checkbox into a “Speed control” and “Height control” checkbox.
Added .friends remove-all
.
Added .viewnbt
: Shows you the NBT data of an item.
Window-based ClickGUI (which you can open by pressing Right CTRL).
Navigator (which you can open by pressing Right Shift).
TabGUI (must be enabled through Navigator, use with Arrow Keys and Enter).
Basically just run the installer. See this tutorial for details.
Also, this should be obvious, but you do need to have a licensed copy of Minecraft Java Edition in order to use Wurst. Wurst is a cheat client, not a pirate client.