It is with great enthusiasm that the Microsoft Application Virtualization product team announces the Release to Manufacturing (RTM) of App-V 4.5!!! App-V 4.5 represents a huge step forward for the product and is the result of many hours of hard work by all of us on the team. Our TAP customers (selected customers who work closely with us to deploy the product into production prior to its final release) and our internal Microsoft IT team have already successfully deployed the product in production to more than 70,000 seats! We are very excited that all of our customers will soon be able to use App-V 4.5 to improve the way that they distribute and run applications in their environments!

How to Obtain the RTM and Receive Support!

The RTM version of the product will be generally available through the Microsoft Desktop Optimization Pack and Microsoft Application Virtualization for Terminal Services. Please contact your Microsoft Account Representative for details. Also, support for App-V 4.5 will be available through Microsoft Product Support Services.

Source- App-V Blog