After updating my BeoSound 1 & 2 to firmware version 1.15.16926.161680342 there are some serious issues.
1. Seeking forward or backward in a track from the B&O app confuses the BeoSound, leaving it in a state where it is shown as playing in the app but no sound is produced. No amount of fiddling in the app will fix this. To get things working again all BeoSound's need to be power-cycled.
2. Skipping forward or backward using the controls on a BeoSound only allows the last or currently playing songs to be selected (e.g. skipping backward twice starts the current song again, skipping forward twice starts the previous song). After this trying to change the song from the app causes the BeoSound to cease producing sound (see above).
3. Sometimes when attempting to join a multiroom experience the BeoSound will blink its light twice and then go into standby. A power-cycle usually fixes this - if not a factory reset is needed.
I'm pretty fed up with this. B&O clearly don't test their software properly, and as somebody that has been in the software business for many years (software engineer for 10+ years) I can't quite figure out how this keeps happening. And don't give me the sob story about the company being in hardship, it's no excuse.