As per the title, Adobe have just released Lightroom 3.4 - you can download the patch via the Help Menu in Lightroom 3.
Patch notes from the readme as follows:-
New in Lightroom 3.4
The goal of this release is to provide additional camera raw support, lens profile support and address bugs that were introduced in previous releases of Lightroom 3. (A comprehensive list of issues fixed in this release is included below.)
Lightroom 3.4 Bugs
Fixed
• Lightroom encountered issues presenting double-byte character metadata after the image was edited on Photoshop.com
• Video files were allowed to be added to a SmugMug publish collection not capable of supporting video uploads
• The up and down arrow keys did not work properly when trying to adjust a point tone curve with the Targeted Adjustment Tool
• In a Flickr publish collection an error would occur when attempting to republish an image marked as "Hide from Public areas"
• Images rotated once in a publish collection could have displayed inconsistent rotations between the grid view and the filmstrip (Windows only)
• Mouse movements when a secondary window had been enabled would cause unnecessary processor activity
• The SmugMug Smart Publish Collection dialog on a 1024x768 display could have closed without warning and prevented access to the main Lightroom window
• Keyword completion was broken when spaces were included
• Multiple Facebook publishing errors have been corrected in Lightroom 3.4
• Publish collections did not work properly if the sort order is set to descending. (“Z to A”)
• Cropped images could have momentarily appeared without a crop while moving from image to image in the Develop module
• Image counts were not updating properly when nested collection sets were separated
• If image files were located on an unavailable network volume, it might have taken several minutes for Lightroom to properly display the thumbnails in the grid view (Windows only)
• Using the up/down arrow keys or the mouse wheel to adjust a parameter while the graduated filter is activated caused increments of plus or minus 100 instead of 1
• Interlacing artifacts, and a slight magenta cast in the deepest shadows could have appeared on some high-contrast edges of Canon mRaw files.
• Video files captured by an Apple iPhone and imported into Lightroom showed the incorrect capture date of December 31, 1903
• In some instances, photos labeled as "Modified Photos to Re-Publish" in a Publish Collection would fail to be re-categorized as "Published" after a succesfull publish operation
Patch notes from the readme as follows:-
New in Lightroom 3.4
The goal of this release is to provide additional camera raw support, lens profile support and address bugs that were introduced in previous releases of Lightroom 3. (A comprehensive list of issues fixed in this release is included below.)
Lightroom 3.4 Bugs
Fixed
• Lightroom encountered issues presenting double-byte character metadata after the image was edited on Photoshop.com
• Video files were allowed to be added to a SmugMug publish collection not capable of supporting video uploads
• The up and down arrow keys did not work properly when trying to adjust a point tone curve with the Targeted Adjustment Tool
• In a Flickr publish collection an error would occur when attempting to republish an image marked as "Hide from Public areas"
• Images rotated once in a publish collection could have displayed inconsistent rotations between the grid view and the filmstrip (Windows only)
• Mouse movements when a secondary window had been enabled would cause unnecessary processor activity
• The SmugMug Smart Publish Collection dialog on a 1024x768 display could have closed without warning and prevented access to the main Lightroom window
• Keyword completion was broken when spaces were included
• Multiple Facebook publishing errors have been corrected in Lightroom 3.4
• Publish collections did not work properly if the sort order is set to descending. (“Z to A”)
• Cropped images could have momentarily appeared without a crop while moving from image to image in the Develop module
• Image counts were not updating properly when nested collection sets were separated
• If image files were located on an unavailable network volume, it might have taken several minutes for Lightroom to properly display the thumbnails in the grid view (Windows only)
• Using the up/down arrow keys or the mouse wheel to adjust a parameter while the graduated filter is activated caused increments of plus or minus 100 instead of 1
• Interlacing artifacts, and a slight magenta cast in the deepest shadows could have appeared on some high-contrast edges of Canon mRaw files.
• Video files captured by an Apple iPhone and imported into Lightroom showed the incorrect capture date of December 31, 1903
• In some instances, photos labeled as "Modified Photos to Re-Publish" in a Publish Collection would fail to be re-categorized as "Published" after a succesfull publish operation