The complete release notes -- much more thorough than Apple's usual vague "improves speed and stability' note -- are up on Apple.com, but here are some of the highlights:
- Apple Mail should now play more nicely with Microsoft Exchange servers.
- You can now use SSL with iDisk, to securely transfer your files to and from the cloud.
- Address Book contacts can now be dragged to iCal without issues, and they can also be synced to Google Calendar/Google Contacts.
- On the hardware compatibility front: Bluetooth now works more reliably for Apple's Magic Trackpad, third-party displays that use InstaPort should now work, and HP printers now work with Apple's Airport Extreme.