5.129.0
(feat): Add settings.embedding.allowed-origins to docs.yml. Origins listed there may embed the
docs site in an iframe (they are appended to the frame-ancestors directive of the
Content-Security-Policy header). By default only the site itself may frame it.
5.128.4
(fix): Preserve portable API import settings, package metadata, README sections, response validation, and language-specific settings when migrating generators.yml to SDK Config.