Despite no major releases of Internet Explorer since 2001, Microsoft is still working on improvments to IE to be integrated with the next major release of Windows, codenamed Lognhorn.
Microsoft already anounced a couple of years ago that they will not be releasing future releases of IE as a standalone product, so the new features will only be available to those who upgrade to Longhorn.
Already there is a growing trend to switch to alternative erb browsers, namely Mozilla’s Firefox, and Safari on the Mac, which have more upto date support for current web standards such as CSS, an area in which IE is beginning to lag behind.