![Rainbow Six Siege Y6S4 Lab Test Server Patch Notes: Warmup Playlist, Attacker Repick, and more - GameRiv Rainbow Six Siege Y6S4 Lab Test Server Patch Notes: Warmup Playlist, Attacker Repick, and more - GameRiv](https://gameriv.com/wp-content/uploads/2021/12/R6-Y6S4-Lab-Test-Server.jpg)
Rainbow Six Siege Y6S4 Lab Test Server Patch Notes: Warmup Playlist, Attacker Repick, and more - GameRiv
![Rainbow Six Siege on Twitter: "The Y6S4.2 Balancing Test Server is open until Friday, January 21st at 2:00 PM EST. What do you think about the changes to Ela, Aruni, and Zofia? Rainbow Six Siege on Twitter: "The Y6S4.2 Balancing Test Server is open until Friday, January 21st at 2:00 PM EST. What do you think about the changes to Ela, Aruni, and Zofia?](https://pbs.twimg.com/media/FJfKMiaXEAYt_z3.jpg)
Rainbow Six Siege on Twitter: "The Y6S4.2 Balancing Test Server is open until Friday, January 21st at 2:00 PM EST. What do you think about the changes to Ela, Aruni, and Zofia?
![Rainbow Six Siege on Twitter: "Don't miss our Y6S4 reveal TODAY! 😎 See you in about 2 hours, at 1:00 PM EST / 7PM CET on: https://t.co/q7A3z2vvlE https://t.co/jAOtvEy1Iy" / Twitter Rainbow Six Siege on Twitter: "Don't miss our Y6S4 reveal TODAY! 😎 See you in about 2 hours, at 1:00 PM EST / 7PM CET on: https://t.co/q7A3z2vvlE https://t.co/jAOtvEy1Iy" / Twitter](https://pbs.twimg.com/amplify_video_thumb/1457743597986619394/img/hIV4PSbshPfw617f.jpg:large)