How to update your server

Shut down your server at the terminal, go to the "Startup" tab, find "Release Version", and select which version of the game you want the server to run on. Selecting "latest" will select the most recent public update. After selection, go to the "Settings" tab, and click "Reinstall Server". You may now start the server again. This should not affect your world, mods, or players, but remember to create a backup of your world before you change versions!