### Overview In 16.0 we will be dropping support for running API scans using the DAST engine. Instead we are moving users to the [API Security engine ](https://docs.gitlab.com/ee/user/application_security/dast_api/#configure-dast-api-with-an-openapi-specification)available through the DAST-API.gitlab-ci.yml file, which is much more powerful. To ensure a smooth transition, we should emit a deprecation notice when the DAST engine is called in API mode. "Use of the DAST.gitlab-ci.yml or DAST-latest.gitlab-ci.yml for API scans is deprecated and will no longer work in GitLab 16.0. Please use DAST-API.gitlab-ci.yml template and refer to https://docs.gitlab.com/ee/user/application_security/dast_api/#configure-dast-api-with-an-openapi-specification, for the any configuration changes." * [x] Add deprecation notice to code * [x] Add conditional into DAST engine so that API scans do not run, if DAST version is >=4. This way, when we bump the version, we do not need to immediately remove the code. * [x] @derekferguson Publish Deprecation notice