How do I keep Steam games updated?

"Some tests may have updates near the scheduled start time, it’s best to leave Steam open to receive any updates.

Launch Steam and go to the game Library
Right-click the desired game and click ‘Properties’
Select ‘Updates’
Open the Automatic Updates dropdown menu and select ‘High Priority - Always auto-update this game before others’

NOTE: Sometimes the automatic update function may not start, you may need to restart Steam to trigger any new updates."