Minecraft
Everything about Minecraft

Change server version
Step #1 | Move to "Startup" and choose version 
 
 Step #2 | Move to "Settings" right next to "Startup" and click "Reinstall Server" button 
 Step #3 | Wait for installation process to finish 
 
 After installation process is done you can start your server and check version by sending command version in console and you will see server version is updated