Due to caching, changes to the site-wide css/js MediaWiki pages can take up to one month to effect readers. The delay changes between readers, and also between files, which can be very frustrating when multiple interacting scripts or stylesheets need to be changed: weird backwards compatibility code needs to be added to ensure that all possible combinations of old and new files work correctly. It would make life easier, if all the css/js files updated at the same time for any single user, maybe by using a cookie to set max age values in the HTTP header or to trigger a javascript-based reload.

Version: unspecified
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=26338