Tom Clancy’s Rainbow Six Siege has been updated to version 2.18 Y6S4.2 today by Ubisoft. You can find out the complete patch notes from here.
This patch addresses various bug fixes while the developers are also looking into resolving the various audio issues that have been reported for the Xbox consoles so far. They have deployed a fix with the patch today that limits the crashes experienced by the players. You can get the complete details on this update with the patch notes below.