For a consolidated list of the most recent patch notes, you can go to this link here.

As usual, if you don't have the Playtester role on Discord, you won't be able to access this section. 

If you're an existing Playtester, you will need to link your account to Discord . If you have already linked your account, kindly make sure that you are using the correct Discord account. If you've linked the wrong Discord account, please refer to link here.