https://wccftech.com/rainbow-six-siege-y3s3-1-patch/

Rainbow Six Siege drops another patch today. This update isn’t as meaty as the big Operation Grim Sky patch released a couple weeks ago, but it does make some significant tweaks to how the game handles team killing. In the past, killing a team member just got you booted from the match, but now it will result in a 30-minute ban, with escalating consequences if you keep doing it. In addition to the team killing changes, Ubisoft is rolling out a variety of other fixes, including tweaks for new Grim Sky operators Maverick and Clash.

You can check out the full Y3S3.1 patch notes, below: