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Protects rapid updates

Important: Objects can be updated at a maximum frequency of once per second. Updating more frequently can cause unpredictable results with the stored object version and can trigger a 409 (Conflict) error. If your application updates objects faster than once per second, include the replicate=immediate query argument to ensure that verify more than one node can return the latest version in a subsequent read.

Renames object

To rename a named object within the same bucket, use the newname query argument, which provides a new name with the update request (PUT, COPY, APPEND). After you rename an object, requests for the original name return a 404 Not Found and the prior search metadata is removed. (Note that the newname argument also allows renaming domains and buckets.)

Updates custom headers

PUT only saves new headers, but the preserve argument allows keeping the existing headers as well as save any new ones. (v9.5)