Microsoft is releasing a new version of the Skype Insider Preview app for all supported platform. Skype version 18.104.22.168 comes with a new feature - 'contact online notification'.
The new Skype Preview app has a very streamlined user interface. It follows the modern trend of flat minimalist design with glyph icons and no borders anywhere. This design is being used in all other Microsoft products.
Contact Online Notification
Version 22.214.171.124 features contact online notifications. When your contact comes online you will see a notification. You can enable or disable the notification by going to Settings > Notifications > Contact comes online notification.
Get the app here:
Source: Skype Forums.