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For releases, the “latest” placeholder should be replaced with an explicit module version. The application version should also be a non-snapshot version, e.g. 1.0.0. Release tags should include the concrete application descriptor (at the top level) resulting from “building” the application.
Whenever a new version of the application’s modules are released, a new version of the application should also be released.
Please consider posting an announcement to #releases slack channel when releasing applications.