On the same day that Apple released the public version of Safari 4 for Windows and Mac, Mozilla published an update to its Firefox 3.5 beta. Available for Windows, Mac, and Linux, they're not calling this a beta version, but it's not a release candidate, either.

Within the next 24 hours, the Firefox 3.5 beta 4 will auto-update to what Mozilla is calling a "preview" version. Users can also force the update by going to the Help menu, then Check for Updates. At the time of writing, it doesn't appear that users can download the 3.5 Preview version directly...

More Info: http://download.cnet.com/8301-2007_4-10260267-12.html