Does the MediaWiki software simply store every old version (1, 2, 3, ...) side by side in the "old" database table, or is there some "diff" involved in the stored format (like RCS does)? Did any of this change between Phase II and Phase III? Was it a non-issue or was there any (documented) design decision or discussion of this? -- Lars Aronsson (lars(a)aronsson.se) Aronsson Datateknik - http://aronsson.se/