I have successfully upgraded from 2.x to 3.1 (v2.1 to v2.4 to v3.1).
However, when I go in to edit a previous wiki page — the result is that the SAVE function takes the entire set of DIVs and text and then produces a large concatenated text block containing at least five instances of the original text.
When I re-edit and PREVIEW — it corrects the issue. Then I go to SAVE and the concatenated text block appears.
I tried clearing all caches and doing it again — same bad result.
Mark R. Jones