> On a TiddlyWeb sever you can already get a sorted by modified time
> list of any collection of tiddlers

Indeed.
However, that only uses the latest revision for each tiddler. (I'll 
explain later why I think that's not ideal.)
Also, it does not show any "special" activities - namely deletions 
and/or renames.

> I don't want a list of every revision, I just want a list of those
> pages that have changedt

I believe it's important to list every single revision because otherwise 
important changes might go unnoticed.

Take, for example, the TiddlyWeb documentation wiki. While I would trust 
your edits (to some extent anyway... ), I'd carefully review changes 
made by other users to make sure they're accurate.
If an anonymous user were to change the Introduction, and shortly 
afterwards you do the same, I wouldn't want that to appear as a single 
change (for one thing, I can't be sure that you have reviewed the 
anonymous edits along with your own changes).

Of course we could combine multiple edits of the same tiddler to a 
single entry, like so:
     2009-02-20  Introduction  4 revisions  2 authors (cdent, anonymous)
However, such a more complex solution could gradually evolve from the 
full data set (i.e. the basic listing of individual revisions).

> [...] as long as the feed is useful (i.e. full content)

Presumably, what you want from a recent changes overview is to see 
what's actually been changed, rather than having to read the entire 
tiddler contents every single time.
Most feed readers do not provide built-in diff'ing - so while for you, 
Chris, the full content is useful, for others it isn't much help at all.

Having said that, neither content nor deltas have to be part of the 
actual overview; a link to the respective tiddler (or diff) should 
suffice for starters.


-- F.


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