For those who've been following the announcements at BUILD these past two days, Visual Studio 2013 Preview has now been officially released.

For Office developers, the VS 2013 Preview release means that the Office 2013 design-time support and the .NET 4.5 support that previously required a separate download is now integrated into Visual Studio alongside the existing Office 2010 and .NET 4.0 support. Better yet, we've also added runtime and design-time support for the new .NET Framework 4.5.1 Preview. If you're interested to learn more about the .NET Framework 4.5.1 Preview — which includes exciting new features like better async debugging, function return values in the debugger, performance improvements, and more, see "Announcing the .NET Framework 4.5.1 Preview".

We hope you enjoy Visual Studio 2013 Preview and the exciting new features of .NET 4.5.1!

~ Michael Zlatkovsky | Program Manager, Visual Studio Tools for Office & Apps for Office