hacks by me):

Added javascript magic to adjust component/version lists when products
get selected.

put on a person or on a bug.  Some of the group bits control access to bugzilla
features.  And a person can't access a bug unless he has every group bit set
that is also set on the bug.

now choose whether to let submitters of new bugs choose a priority, or whether
they should just accept the default priority (which is now no longer hardcoded
to "P2", but is instead a param.)  The default value of the params will cause
the same behavior as before.

or no ASSIGNED bugs.

don't let people file new bugs against this product.  (This is for when a
product is retired, but you want to keep the bug reports around for posterity.)

link to Enter A Bug when viewing a list of bugs.

that have spaces or other weird characters in them.