The canonical upgrading question got reopened and its deletion votes are cleared, so it's back to square one. Well, not quite because in the process we also got muru's answer to this Meta question which rocks.
Now is your window of opportunity to post an up-to-date answer to the canonical upgrading question because it may get closed again. If this question gets closed again, you still have an opportunity to migrate an up-to-date answer to it by answering one of its duplicate questions that is still open, and then flagging the question that you answered to be merged with its linked duplicate question if the question that you answered gets closed as a duplicate of the canonical upgrading question. If your merge question flag is accepted by moderators your answer will be posted where more users are likely to read it.