Windows Home Server Power Pack 2 is released via Windows Update, and come fixes known issues and adds new features to improve the Windows Home Server experience. Enhancements include: Improvements to remote access configuration, enhanced functionality for computers running Windows Media Center, and content streaming support for Windows Media Center Extenders. Power Pack 2 adds Italian language support on new home servers.
Users need to have PP1 installed, as PP2 will automatically install as part of Windows Update if Automatic Updates is enabled on the home server. How to turn on automatic updates, the English version release date is March 24th. Chinese, French, German, Japanese and Spanish is currently scheduled to be available before the end of April.
More info: Release Documentation