Apache Ozone will support conditional PutObject, GetObject, HeadObject, CopyObject, and CompleteMultipartUpload in the upcoming 2.2 release (RC0 is currently under a vote), and will add conditional DeleteObject and DeleteObjects support in 2.3.
Fast Optimistic Concurrency Control with Apache Ozone S3 Conditional Requests
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July 8, 2026
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apache-ozone