Upgrading suggestions

[Perry Smith]

I thought I would toss out this question to this group.

Over time, hacks and tweaks that I've added to my emacs init files get 
incorporated into the official release (usually with a much better 
implementation).  I assume I'm not unique in this area.

How do others, when moving up to a new level of emacs, deal with this?  How do 
you (or perhaps you don't bother) find the things that have moved into the 
production version and start using those versions rather than the old version 
that you have.  e.g. ruby mode is now part of the distribution.  There are 
countless examples of this.

The biggest example I have is all of the "customize" features.  I still have 
old lisp code that is setting things up using old setq's instead of the new 
customized stuff.  That seems to work ok but sorta bothers me.

Thanks,
pedz