Adobe has posted a release candidate of Camera Raw 4.5 on Adobe Labs. The ‘release candidate’ label indicates that the plug-in is well tested but would benefit from additional community testing before it is distributed automatically to customers. If you do experience an issue with this release candidate please report them to the Camera Raw User to User forum.

Newly supported cameras include the Olympus E 420 and E 520. Additional compatibilities have been added for the DNG 1.2.0.0 specification. Photoshop Elements users will now be able to control the camera profile used. 

For more information on the Camera Raw plug-in please visit the Camera Raw pages on Adobe.com.