The Skype team over at Microsoft has just released a new update for the Skype app for Windows 8/RT which brings the HD video calling support. The update also brings the improved video messaging support to Windows 8 which was launched last month.
The official Skype Blog mentions that the Skype app for Windows 8/RT now supports upto 720p videos to be sent and receive upto 1080p videos while calling from the app. The video messaging feature is still in preview but, the team has made some more improvements in the video messaging feature.
The change log of the Skype app in Windows Store mentions the following:
The update is now available for Skype app of Windows 8/RT and can be downloaded by following the instructions in this article.
Source: Skype Blog