Skype the most popular VoIP software, have released a Beta version of Skype 5.11 for windows. Skype have added many new features with some minor improvements.
In the beta version, Skype added sign in with Microsoft account and facebook account.
Using Microsoft account/windows Live ID you can send and receive IM messages from your friends who are using Messenger, Xbox, Hotmail or Outlook.com.
or if you have facebook account then You can sign in directly with your Facebook account without needing to first create a Skype account and if you already account with Skype then you can Merge your facebook account with Skype account.
Apart from this Skype also change the visual design, “We have refreshed and flattened the Skype UI with a simpler and less cluttered look.” and added 6 new languages.