Board Revision History
I have a board not documented here - a Model A+, made in the UK, bought in 2015, revision 0015. Given that there's also no 0014 on the list, my guess is that would be a similarly-revised model B+, but I've no clue what the revisions are. Anything I could do to help determine the changes and get it on the list I'd be game for.
0014 is a China-made Compute Module - I'll add it to the list shortly. IMHO you ought to simply add your new 0015 to the list, even if you don't know what the changes are.
Have done so; I'm fairly certain based on board markings compared to my other Pis that it's made by Embest in China, but can't be sure about the date from the numbers given.