Skype for Windows, Mac and Linux all get updates on the same day
 

Skype in all its forms received incremental updates for those video conferencing addicts out there. The Windows flavor gained various UI improvements, including a pinnable contacts list, backwards-compatible video rendering for older machines and better Facebook integration. Meanwhile, the Mac version got a similarly refreshed interface, improved screen sharing for premium users and a bunch of fixes necessary to get the software ready for Mountain Lion. Over on the Linux table, users will find improved video and audio quality along with a raft of minor bug fixes and improvements. The revised versions are available to grab as soon as you re-launch the phone-troubling software.

http://www.engadget.com/2012/06/14/skype-updates/