Versioning Objects

We recommend that you use the common technique of versioning to give yourself better control of your content. Versioning means that you assign each object in the origin server a version number. For example, instead of calling the file image.jpg, you call it image_1.jpg. Then when you want to start serving a new version of the file, you name that new file image_2.jpg, and you update your links to point to image_2.jpg. With versioning, you do not have to wait for an object to expire before you can serve a new version of it.

Even though you might be versioning your objects, we still recommend you set an expiration date that you feel is appropriate for your objects. For more information see Object Expiration.