Skype 4.0 for Linux is codenamed "Four Rooms for Improvement" and aims to address some of the missing features from the Linux client that the Windows and Mac OS X versions have had for a while. Plus there's some user-interface refinements and other improvements too.
From the Skype Linux Blog, the major Skype 4.0 changes are:
1. We have a new Conversations View where users can easily track all of their chats in a unified window. Those users who prefer the old view can disable this in the Chat options;Other Skype 4.0 Linux changes include:
2. We have a brand new Call View;
3. Call quality has never been better thanks to several investments we made in improving audio quality; and
4. We've worked on improving video call quality and have also extended support for more cameras.
- Improved chat synchronizationThe closed-source Skype Linux client can be downloaded at Skype.com.
- New presence and emoticon icons
- The ability to store and view phone numbers in a Skype contact's profile
- Much lower chance Skype for Linux will crash or freeze
- Chat history loading is now much faster
- Support for two new languages: Czech (flag:cz) and Norwegian (flag:no)
Meanwhile, there's still no concerted effort towards the Free Software Foundation's Skype replacement project. The work out of the open-source Skype reverse-engineering camp has been limited as well.