Adobe Photoshop Lightroom v4.4 and DNG Converter 7.4 Updates Coming

Adobe published a notice regarding updates for Photoshop Lightroom and its DNG Converter. However, the publication dates are listed as "April 2, 2013" and the downloads are currently unavailable.
 
Note: Information on the updates may change before the intended release date.
 
From Adobe:
 
Lightroom 4.4 update
 
April 2, 2013
The Adobe Photoshop Lightroom 4.4 update includes these enhancements:

• Improved demosaic algorithm for better raw file support on cameras with X-Trans sensors. This includes the Fujifilm X-Pro1.
• Additional camera support for 23 cameras including the Canon EOS 1D C, Nikon Coolpix A, and Samsung NX300.
• Corrections and bug fixes for issues introduced in previous versions of Lightroom.

DNG Converter 7.4 update
 
April 2, 2013
This version of the DNG Converter supports over 20 new cameras including the Canon EOS 1D C, Nikon Coolpix A, and Samsung NX300. Visit the Camera Raw page for a complete list of supported cameras.
 
B&H carries Adobe Photoshop Lightroom v4.