Hostgator and Compression

[pmeenan]

Depends on the change and how your site works. If a given file (image, css, javascript) changes and is set to cache then the users will NOT see the change and could potentially experience a broken site.

You need to change the file name of resources for users to get the updated version. Most plugins that do the acceleration for you will take care of it automatically but if you just manually set the expiration in .htaccess you should change it back until you fully understand the ramifications for your site (images are usually not a problem - though logos sometimes change - css and javascript are usually the ones you want to watch out for).