Content made with the old 0.2.x SDK or prior won't work on DK2. Newer content with the latest 0.3.x SDK will work, but only in a compatibility mode. For all the DK2 features, developers will need to build with a newer SDK that has not been released yet. We plan to get that release out around the same time as DK2 ships, so developers can update their content as soon as they receive the headset.
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