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What should I check before playing after a League patch?
Guide Q&ARead the live status notice on leagueoflegendscheat.com, update the loader if prompted, then verify overlays in Practice Tool before ranked.
If anything crashes or misaligns after a Riot patch, stop queueing until a compatible build is posted.
Based on: League of Legends patch day checklist
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Guide replies 2
From the source articleI run one Practice Tool game after every client update—cheap insurance.
Agree. Waiting beats guessing when Vanguard and client builds change together.