Whereas the v1 package included controllers, renderers, and other functionality, the v2 package provides only Request and Response objects... You can read more about the distillation of these concerns into separate packages here.
As a side note, you can see from the timing of these recent releases that Aura libraries are completely independent from each other. There’s no subtree-split or extract-and-build-for-release processing; each library is completely contained in its own repository, making individual releases through our admin script a trivial matter.
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