Migrating to jquery 1.4
jquery, upgrade
Solution
Check this page: http://jquery14.com/day-01/jquery-14 (cached version from web.archive.org)
On the bottom there's a list of breaking changes. It will give you an idea if there are issues for you.
There's also a plugin which makes jQuery 1.4 compatible with 1.3.
Problem
I would like to upgrade a site from 1.3.2 to 1.4 as I see there are some good performance improvements. Can I simply drop this in or should I be concerned about my plugins working? Is it backward compatible? What should I be worrying about?