What's the first version of Magento Community edition to ship with a Magento Connect 2.0, and what's the general history of this feature?
That is, to download an extension from Magento Connect you need to choose a Magento Connect 1.0 or 2.0 URL
Which version of Magento Connect started requiring a 2.0 URL? I have vague memories of a version of CE shipping with 2.0 support built in (sometime around 1.4.2 or 1.5.0) before the 2.0 system was ready. However, I can't remember the specifics and was hoping to avoid an archeology expedition to figure this out myself.