After a short beta, Camera Raw 5.5 has been released, along with Lightroom 2.5. This release is basically a camera update, along with one announced bug fix.
Camera additions are:
** This Camera has a different name in Europe and Japan and due to metadata differences will not be supported until the next update.
Camera Raw 5.5 and Lightroom 2.5 include a correction to the demosaic algorithms for Bayer sensor cameras with unequal green response. Olympus, Panasonic and Sony are among the more popular camera manufacturers affected by this change. But the demosaic correction provides only a subtle visual improvement to the processing of those raw files.
Lightroom 2.5 corrects for the following problem in Lightroom 2.4. Lightroom 2.4 on Windows continued to display the import dialog when a memory card was detected regardless of the preference setting “Show import dialog when a memory card is detected.”