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Once you enable versioning on a bucket, Amazon S3 automatically adds a unique version
ID to every object stored (using
COPY) in the bucket.
The following figure shows that Amazon S3 adds a unique version ID to an object when it is added to a versioning-enabled bucket.
Adding Objects to Versioning-Enabled Buckets
|1||Enable versioning on a bucket using a |
|2||Send a |
When you add an object to a versioning-enabled bucket, Amazon S3 returns the version
ID of the object in the
x-amz-versionid response header, for
Normal Amazon S3 rates apply for every version of an object stored and transferred. Each version of an object is the entire object; it is not just a diff from the previous version. Thus, if you have three versions of an object stored, you are charged for three objects.