At Sat, 21 Jan 2012 07:59:38 -0500, Max Mikhanosha wrote: > If you do this "copy the project" thing once a week or so, you can > have a nice ediff of the project's progress along the time-line. > > Actually it may not be a bad idea to implement M-x > org-ediff-subtree-with-sibling command, that would do that > automatically, and would include the ediff hooks to do fold/reveal of > regions
Expanding on that thought, if one were to write a contrib module to do this type of stuff, maybe each time you want to make revision of a project, you make a copy of it, and archive the old one. This way all searches only find the most recent stuff. And then have M-x org-ediff-subtree-with-archive command, which accepts numeric argument being the N'th copy of the archived tree?