and so on!
I propose to use well-used dashed-form for versions.
closed as off-topic by Undo, Martijn Pieters, Al E., animuson, Monica Cellio May 15 at 1:33
This question appears to be off-topic. The users who voted to close gave this specific reason:
Since it appears that the non-hyphenated tags do not have synonyms defined, you could try doing this grass-roots style by tagging a few questions with the hyphen form, and then proposing the old tag as a synonym for the new tag.