OpenSearch adds index-level encryption with KMS keys
🔐 Amazon OpenSearch Service now supports index-level encryption, allowing each index to be encrypted at rest with its own AWS KMS customer managed key. This enables separation of data with different ownership or sensitivity within the same domain, useful for multi-tenant applications. The feature requires OpenSearch 3.3+, is available in 14 regions, and carries no additional feature charge beyond standard AWS KMS and service fees.
