Do edited files autoupdate the respective toolbox.mltbx-file?

Hello,

I've gone through and packed a project of mine into a toolbox.

Sadly, I found a rather annoying bug afterwards, which I have now fixed.

If I'd want to sent this toolbox of to a friend of mine, do I have to repackage it again now, since it has been altered?

Or does the toolbox.mltbx-file used for installation update itself, so that I'm good to go withoug repackaging?

Thank you.