App-V 4.6 SP3 released

Service Pack 3 for App-V 4.6 is also released as part of the MDOP 2013 R2 release as well.

You will need this version to deploy App-V 4.6 packages to Windows 8.1 and Windows Server 2012 R2.

More info: http://blogs.windows.com/windows/b/springboard/archive/2013/12/02/announcing-mdop-2013-r2.aspx