Mac : http://www.skype.com...getskype-macosx
Windows : http://www.skype.com/go/getskype
- Microsoft and Facebook Account Integration
Sign up and sign-in is easier than ever. You can now sign into Skype using your Microsoft or Facebook account - there's no need to create a new Skype account. This makes it even easier to connect with friends on Skype without having to set up another account.
- IM friends on Messenger
Now you can instant message your Windows Live Messenger, Hotmail and Outlook.com contacts via Skype all in one place. If you use a Microsoft account today, merging your accounts is easy - just sign in to Skype with your Microsoft account.
- Calling with Messenger friends is coming soon
We're working on polishing a feature which will enable audio and video calls to Windows Live Messenger customers using Skype desktop clients. The feature will be available in coming weeks.
- Open Chats in Multiple Windows
We hear your feedback! With this release we've added support to open chats in multiple windows.
- Retina Display Support
We also added another feature you've asked for - support Retina display. Now you can take full advantage of improved usability and of higher resolution screens.
On Mountain Lion the profile image picker does not work as expected - recent images can't be seen and effects can't be added. No current workaround.