While June 26, the opening day of Microsoft's Build 2013 conference, is all about the first public preview of Windows 8.1, that's not the only downloadable Microsoft is delivering today.
Microsoft also is making available as of 9 am PT/12 noon ET today a public preview of Visual Studio 2013 and .Net 4.5.1. The company also is releasing the final version of Visual Studio 2012 Update 3 today. Update 3 is the last of the regular updates to the VS 2012 product.
The download link for the Visual Studio 2013 preview is here. It is available under a "go-live" license. The .Net 4.5.1 preview installs as part of the VS 2013 preview and is also included in all installations of the Windows 8.1 preview. The new .Net preview also is available for separate installation into Windows 8, Windows 7, Windows Vista and corresponding Windows Server releases.
According to Microsoft officials, much of the functionality in the .Net 4.5.1 release is focused on improving debugging and general diagnostics. The update also allows developers to enable Edit and Continue for 64-bit.
Microsoft also has made improvements to the development experience for those using XAML to build Windows Store apps, according to officials. There are "significant" performance improvements for the XAML designers in Visual Studio and Blend, as well as general XAML editing in Visual Studio, with the inclusion of IntelliSense for data binding and resources.