Depending on what it is that changed it may not matter. abrowser isn't the
only project which is 'behind' the official release. Until recently Canonical
wasn't keeping up with the newer versions either. They stuck to a stable
older supported (for the majority of the time it was included in Ubuntu)
release and patched it as needed. When mozilla discontinued support Canonical
continued to patch it.
The point of all this is stop putting people down when you obviously have no
understanding of the issues.
There are other projects like Tor which also don't keep the browser in sync
or "up to date". There simply isn't a need. This a is a project which is
ultra concerned about security and privacy.
The point is there are reasons these projects are not always up to date and
that is OK!
Each project has different goals and needs. If you absolutely must have an
'up to date' version because of some psychological defect go download it or
switch to a distribution that is focused on such things.
