I've posted reviews of Internet Explorer 5.01 (final) and Internet Explorer 5.5 Platform Preview on the SuperSite for Windows. Internet Explorer 5.01 shipped in mid November, offering a slew of bug fixes and a few other changes. It's the version of IE that will be included in Windows 2000. Internet Explorer 5.5, which will ship with Windows Millennium in mid-2000, is the next version down the pike; it's currently in a pre-beta Platform Preview that's publicly available from the Microsoft Web site.
Read the reviews today on my SuperSite for Windows.