Update from me ...
After a long wait, Beocare agreed to roll me back too ... and this seems to have fixed the issue.
I played continuous Deezer streamed media for 3-4 hours last weekend, with no stuttering. Same general conditions, and some the same albums too.
According to my Moment the versions I'm running are:
2.2.2.3900
2.2.31594.26265250
I've disabled auto-update and will continue to monitor, but for now I am happy.
However, I have fallen foul of the fallout between TuneIn and the BBC, and have lost my favourite BBC stations on the Radio service ... but that's not B&O's fault exactly ... but very annoying nonetheless!
Hope helpful
Tom