Version number missing in individual UI files

Version number missing in individual UI files


Why isn't there a version number inside of individual UI files? The
only number I could find was inside of the ui.core.js and
jquery.ui.all.js. This was from downloading the Development Bundle.
If all files are considered to be the same number as the core, then it
still helps to add it to the individual files in case just the core is
updated for whatever reason and not the others and there is a
mismatch.
Lastly, if all files are considered to be the same number as the core
does that mean that plugins like tabs or datepicker can't be updated
on their own due to bugs or new features? Do those updates have to
wait until the whole UI suite is updated?
Thanks,
Aaron