Why not test all changes in the Public Beta Environment (PBE) first before releasing a new League of Legends update to the live servers?
Get 3000 RP FREE EVERY DAY! | How to create a PBE account?
Riot Games has opened the gates for everyone to join the PBE, a previously exclusive server limited to a select group. You’re good to go as long as you have a Riot account in good standing, with no current bans or restrictions.
It's always worth jumping on the PBE servers if you have the time to get ahead of the game.
To create a PBE account, navigate to the PBE sign-up page on Riot’s website and ensure that your account meets the eligibility criteria. You can create an account if you have no current bans and an Honor level of at least three in League. The instructions for signing up are pretty straightforward, so you shouldn’t have any trouble.