On Sep 9, 2010, at 15:13 , Jeremy Evans wrote:

> home_run (my stdlib Date replacement) is written in C and works on =
both
> 1.8 and 1.9.  I'd say it is pretty maintainable, and hopefully others
> can vouch for my sanity. :)

some ruby api is more stable than others. event_hook needs a complete =
rewrite to work on 1.9. ruby-debug1.9 exists for much the same reason. =
I'm sure there are others.