S3 Annotations Add Queryable Per-Object Metadata Up to 1 MB Each
June 17, 2026
S3 Annotations lets users attach up to 1,000 queryable metadata entries per object in JSON or XML, each up to 1 MB, without rewriting the underlying object. This enables richer data cataloging and filtering directly at the storage layer.
HOW THIS AFFECTS YOU
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builderYou can now attach and query structured metadata on S3 objects without a separate metadata store or object rewrites, which simplifies data pipeline and catalog architectures.