Skype has released an update to its Windows Phone 8 app version 2.5, the update focuses on general improvements and reliability. Its always good to see apps updated & it seems this is a constant with WP8. You can download the new version HERE.
Full release notes for Skype 2.5 for Windows Phone 8 are:
New and changed features:
- Message notifications for Messenger buddies are now on by default
Fixed issues:
Source: Skype