Lightroom 1.4.1 and Camera Raw 4.4.1

The Lightroom 1.4.1 and Camera Raw 4.4.1 updates have been posted to the following locations: Lightroom(Mac, Win), Camera Raw(Mac, Win). The updates provide all of the changes included in the original Lightroom 1.4 and Camera Raw 4.4 releases but also include corrections for issues described below and in previous blog posts. The Camera Raw plug-in will also be available later this evening via the Adobe Update Manager and the Lightroom update can be located by choosing 'Check for Updates�' under the Help menu. The Lightroom and Camera Raw team apologize for any inconveniences caused by the issues presented in the initial updates

Lightroom

• Lightroom 1.4 incorrectly modified the EXIF time date field of images that had a metadata update applied. This incorrect modification does not appear in Lightroom or Bridge and is only viewable through third party EXIF tools. This error has been corrected in Lightroom 1.4.1 and all files in a Lightroom catalog that have been incorrectly modified will be corrected on their next metadata update. (Metadata can be updated by selecting the files in the Library grid view and choosing Command or CTRL + S to save and update the metadata.)
• Olympus JPEG files could render incorrectly in Lightroom 1.4, displaying an artifact in the exported file.
• Any conversion to DNG in Lightroom 1.4 (Windows Only) would cause the DNG file to become unreadable by Lightroom�s Develop Module or Camera Raw 4.4 in Photoshop. The issue has been corrected and files can be converted to DNG again in order to resolve the issue for existing files. Returning to the original native raw files is not necessary. The affected DNG files can be selected and converted again using the DNG Converter 4.4.1 available at www.adobe.com/dng/. This process is not required but recommended to ensure that a correct validation value is stored within the DNG files.
• Lightroom 1.4 provided degraded import performance relative to Lightroom 1.3.
  

Camera Raw

• Camera Raw 4.4 incorrectly modified the EXIF time date field of images that were saved as TIFF or JPEG files from the Camera Raw dialog. This has been corrected in Camera Raw 4.4.1
• Olympus JPEG files could render incorrectly in Camera Raw 4.4, displaying an artifact in the exported file.

source : blogs.adobe.com