LR3 using LR2 history

To try out LR3,  I exported a half dozen M9 DNG files as originals into a folder from Lr2.   These were not exported as DNG but as originals .   Then I imported the test files into LR3 and to Capture One.  My objective was to see how the raw conversion improved and how it compared to the two raw convertors I currently use.   In C1 the files opened as originals ..this was easy to see as one file was cropped in LR2.   In LR3 the files came in and the full history was applied from LR2.   I was not using any .xmp files. 
I could of course simply hit reset and remove the history but what about the raw conversion?  I went back and found the original DNG and made a test copy.  After importing it I could easily see that the raw conversion was improved over the other method implying that my first attempt had already been converted in LR2. 
This would appear to have both good and bad considerations.   I could for example load an entire years worth of images into LR3 ....my folder structure would keep them exactly as they are in LR2..in effect building the library..but carrying the history(development ) from Lr2 to Lr3.  But I would lose out on the improved raw conversions possible with Lr3. 

Larry,
lalittle wrote:
"The reason for this behaviour is that LR takes an existing XMP file into condideration when importing a RAW file. And in the XMP sidecar, all the development settings applied to the image (not the history) are stored."
Do I understand correctly that this is only an issue when importing existing edited photos in Lr3 rather than openning your Lr2.5 library with Lr3?  In other words, would this NOT be an issue if simply openning an existing Lr2.5 catalog with Lr3 (or when upgrading at some point later)?  If I take my Lr2.5 catalog and open it with Lr3, I'll still get EVERYTHING, including the history, correct?
Thanks,
Larry
This is correct. If you will open an LR 2.5 catalog with LR 3, you'll get all the history, which is stored in the catalog, rather than in the XMP data.
This also applies when you've never written metadata to disk.
Beat Gossweiler
Switzerland
Edit:
Of course I'm not Adobe, and by saying the above, I just assume normal upgrade procedures. So don't quote me if Adobe would - for whatever reason - not implement a full catalog migration
Message was edited by: b_gossweiler

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