If you missed it, Adobe has released updates for Camera Raw and Lightroom, bumping things to ACR 5.7 and Lightroom 2.7. Aside from support for additional camera types (including the Panasonic G10 and several medium format digital backs), the new versions provide new demosaic algorithms to improve compatibility with the new processing and tools in Lightroom 3 Beta 2. You can read more here.
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