Prince of Dorkness
Bard just got a complete rewrite... and there isn't a good way to combine them with 2014 bard. I wonder what excuse this will be given for back compatibility.
You even get subclass level changes and a whole subclass feature level got added
They said from the start that the playtest material will be Backwards Compatible with the existing Adventures and Supplements, not the 2014 PHB.I mean anyone can take any of the previus edition bards and CHANGE them to be 5.5... but that doesn't mean they are compatable