Just opened Lightroom and got update info as follows:
"Adobe Photoshop Lightroom 3.4
The Adobe® Photoshop® Lightroom® 3.4 update includes these enhancements:
• Additional camera support for several new camera models including the Canon Rebel T3i, Nikon D5100 and Fuji FinePix X100
• Corrections for issues introduced in previous versions of Lightroom 3"
Download is here