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Panda update. This launch refreshes data in the Panda system, making it more accurate and more sensitive to recent changes on the web.
I wouldn't jump to any conclusions about the future of Panda right now. Anything is still possibile, even as it slowly gets more integrated.
Changing the URL to .com seems like a short term fix, if anything. However, no-indexing (or removing!) sub-par content makes plenty of sense to me.