When was the last update for the Soundbar 300 released?
Version 18.x released date can be found here: https://community.bose.com/t5/SoundTouch-Speakers/Updated-3-1-SoundTouch-Ecosystem-Update-18-x-Relea...
Do this also applies to the SoundTouch 300 Wireless Soundbar system?
Yes. Read it.
Ok. Thank you.