4.0.0-rc.0 (2021-09-10)

Bug Fixes

• build-security: do not expose hostname to build framents (#7491) (fdef4ea), closes #7446
• security: bump swagger-client to v3.16.1 (b47174f), closes #7473

More information in pre-release article: https://swagger.io/blog/api-design/what%E2%80%99s-ahead-for-swaggerui-v4-and-swaggereditor-v4/