I always use the following method when uploading new application code. I have two versions of the code: "dev" and "main"
"main" is the default version. I upload the new code to the "dev" version and test if the update is working by using the url http://dev.appname.appspot.com Then temporarily make "dev" the default version. Upload the code to "main" and make "main" the default. This method never failed for static content (css,js). I need to force reload shift-ctrl-R the page to ignore the browser cache content. If you apply a cache buster to your css link your users will see the updated css immediate. <link type="text/css" rel="stylesheet" href="/css/style.css?ver=20120104"> You need to change the string anytime you upload a new version. If you use source version control you can use the version number of the css file. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.