Adwords Editor 4.0 released

My Adwords Editor just offered to download a new version titled 4.0
After downloading and installing it I found some new features.
The new features I've noticed (there may be some more) are:
1. Custom date range for performance stats.
2. Ability to upload a single campaign changes and not a full post
3. Much faster campaign downloading. I downloaded a 20K keywords campaign in under 2 minutes.

This new version is so far not being advertised by Google anywhere I could find.
Even the Release Notes still refer to version 3.5

Have you tried the new upgrade? Did you like it as I did?