Microsoft Teams Rooms update 188.8.131.52 is scheduled to go live today. As with previous releases, we'll start off by making the update available to 10% of devices and then throttle up to 100% in the next few days. [March 11, 2019 status update: 184.108.40.206 is now available to 100% of devices.]
This update includes a couple of notable fixes. First, we're removing the casting icon and description on the Front-of-Room display when the device's Bluetooth beacon is not enabled. (Side note: the Bring Your Own Meeting user experience affiliated with the casting icon will be enabled for users some time in the next couple months. Thank you for your patience!) Second, we've fixed a volume issue that occurs on MTR in Teams meeting mode.
March 18th Note: 220.127.116.11 update was released over the weekend to address the issues observed with 18.104.22.168 and the older Windows 10 Version 1703.