Here is a short list - most changes are in the IDE:
* Support for project "workspaces" - multiple projects in the same project tree (with dependencies and so on).
* Completely rewritten image editor (at least internally), with support for bitmaps with alpha channel (XP icons, for example) and more.
* Support for expressions in the debugger (QuickWatch dialog and in the Watch pane; like "var1[8] * var2[0]" and "eax << 2")
* Better breakpoints (pass-count, break when expression is true).
Pelle