Updaters should keep track of their own metadata and should not rely on the changelog files.
Put the RSS feed data into the zip pasta!!! Please!!! Right now WAU is doing it itself the files are tiny like <1k - you can take out filelist.wau, and name all the changelogs the same, and you have a consistant way of determining both local and remote versions.
No. Updaters should work even if I decide to remove changelogs from the zips entirely.