Release Date is an option available for time sensitive content which allows you to set the date when that content will become visible to view viewers on the app.
This option can be turned on for any file by taking the following steps:
1. After starting the upload process go into the file by selecting the file link
2. While in the File info menu, look for the App visibility section and select the calendar button
3. Here you can select the date the content will become visible to your viewers.
Note: Users with prerelease privileges to your content will be able to view it as soon as it has finished processing.