Feature summary
go to any file https://commons.wikimedia.org/wiki/Special:Random/File
click "Upload a new version of this file"
if the selected file to upload is bigger than 100 mb, it shows "This file is bigger than the server is configured to allow." but it doesnt tell users what to do.
PROPOSAL
mention https://commons.wikimedia.org/wiki/User_talk:Rillke/bigChunkedUpload.js in the message so that users know how to upload files > 100 mb.
only when T74768 is resolved will bigChunkedUpload be not needed.