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AWS opensearch-service documentation change

Service: opensearch-service · 2025-08-10 · Documentation low

File: opensearch-service/latest/developerguide/release-notes.md

Summary

Added documentation for new SAML attribute-based FGAC feature

Security assessment

Documents new security feature (SAML attribute-based access control) but does not address a specific security issue

Diff

diff --git a/opensearch-service/latest/developerguide/release-notes.md b/opensearch-service/latest/developerguide/release-notes.md
index c5fcdc14f..9df7323e1 100644
--- a//opensearch-service/latest/developerguide/release-notes.md
+++ b//opensearch-service/latest/developerguide/release-notes.md
@@ -20,0 +21 @@ Change| Description| Date
+New feature: SAML attribute-based fine-grained access control| Amazon OpenSearch Service supports fine-grained access control with SAML to dynamically map users and groups from your identity provider to OpenSearch fine-grained access control users and roles. You can scope these roles to specific OpenSearch domains and serverless collections, and define index-level permissions and document-level security. For more information, see [Configure SAML attribute-based fine-grained access control](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/application-enable-SAML-identity-federation.html#SAML-identity-federation-step-5).| August 8, 2025