For those of you that have been using IE 7 Beta 3 or still on IE 6 – head on over and download IE 7 RC1. Just came out a little bit ago, I have it up and running – don’t notice any major differences as of yet, but I will keep looking. One thing of note – Check out some of the items that have changed in the new build and from IE 6, some probably not noticeable for the average user – but for developers it is a continuing hot spot (CSS compliance).
EDIT – Found some info on changes in this version
The RC1 build includes improvements in performance, stability, security, and application compatibility. You may not notice many visible changes from the Beta 3 release; all we did was listen to your feedback, fix bugs that you reported, and make final adjustments to our CSS support. I do want to call attention to two changes in particular.
First, IE7 RC1 setup automatically detects and uninstalls previous IE7 betas before trying to install IE7 so you don’t have to. We’ll post more detail on the install/uninstall process very soon.
Second, IE7 RC1 will automatically detect add-ons with known stability or compatibility problems so that end users can easily get a newer version or temporarily turn the add-on off. The most common cause of the “IE7 installed but won’t run” problem reports we’ve gotten was old versions of some toolbars. We’ve worked closely with toolbar vendors to make this experience better. Again, we’ll post more detail on this topic here very soon. IE7 Team Blog