APEX 4.0 comes with tons of new Features, a good summary can be found in the New Feature Description Application.
Every time I try something in APEX 4.0 i find some cool new functions or features, for the moment my favourites are:
- Plugins, Plugins, Plugins
- new Debug Mode
- Tree View in Application Builder
Check APEX out now and find your cant-live-without-it-features!