Microsoft has posted the first release candidate of Internet Explorer 7 (Windows only). According to general manager Dean Hachamovitch, "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. "