Special:Version is never accurate:
a) there may always be one or more livehacks, that get there because of.. live hacking (like profiling sections added here or there) b) some changes to some files can happen sooner than the whole 'update to trunk & sync' operation. small changes rarely go live as 'scaps', as not everyone wants to review all trunk stuff.
but thats life, and we've got Brion to be the code maintainer :) hi Brion!
BR,