Pentax has released an upgrade to the Digital Camera Utility 4, the new release is designated 4.35.
Data for the following two lenses has been added to the utility's database. The utility will now correctly identify these lenses based on the EXIF information, and we assume that correction of distortion and lateral chromatic aberration is now also available for these lenses:
smc PENTAX-DA 40mm F2.8 XS smc PENTAX-DA 645 25mm F4 AL [IF] SDM
The new release also includes an updated library for image tone processing.
The upgrade is available from the Japanese web site
here.