http://bugs.winehq.org/show_bug.cgi?id=58154
--- Comment #2 from Jeremy Newman jnewman@codeweavers.com --- We will no longer allow browsing of the entire download folder structure. The APT/RPM repos in particular do not need browsing. Partly due to limitations of the new hosting solution (Fastly CDN to AWS Origin), and also due to bots spidering the entire structure costing us bandwidth fees.
The source folder should have an index of some kind though. Since automatic indexes are no longer possible we will have to build a downloads.html file for that folder instead. There is a plan to dynamically build that file on new Wine releases. Once that is done we will update the URL on the Wiki.