It might be easier for us if you describe your wishes to further extent. Be more concrete as to what kind of features it should include. E.g. should it be a plugin where you can manually enter changes in a certain 'project'. Should it support multiple 'projects'? What are you looking for?
Basically for website changes to the code base.. so i can track all the changes i made to my e107...a changelog for a single project.. multi works too.. e107.org has a changelog just wanted something like that. So i can fill in the blanks and it lays it out all nice looking.
Well it is possible to create a plugin that allows you to manually enter those changes. Making such things to automatic would require a dedicated server setup, or at least beyond shared server hosting.
May be simplest to just maintain a tree of all the modified files in your site, then use something like WinMerge to compare your versions with standard files as needed. Or set yourself up a local repository using CVS or SVN or git - that will inherently identify the changes.
PHPnoobie hit iut on the head.. there was also a "notes" or something for admins to keep notes... to bad all the downloads was moved or lost..from coders...