Some users may see old content in their browser. This is generally not be cause we have updated the site, but because your browser is caching (remembering) old content.
Just clicking the refresh button CMD+R on Mac (or hitting F5 in Windows) won’t be sufficient to get new files, because this reloads the webpage while still using the old files from the cache.
There are some situtations when bypassing your browser’s cache is prefered. You need to refresh your cache first! Refreshyourcache.com contains step by step guides to clear your browser’s cache forcing it to download all latest data from our website.