8 classes are annotated with ContentHubRequirement in Acquia Content Hub 8

ContribModuleVersionRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/ContribModuleVersionRequirement.php

Requirement to verify no untested module versions are installed.

CoreVersionRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/CoreVersionRequirement.php

Defines a core version requirement.

DiagnosticsInstalledWarning in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/DiagnosticsInstalledWarning.php

Requirement to warn that this should be off in production.

EndpointAccessibilityRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/EndpointAccessibilityRequirement.php

Defines an endpoint accessibility requirement.

HashSaltRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/HashSaltRequirement.php

Defines a salt hash requirement.

InvalidCertificatesRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/InvalidCertificatesRequirement.php

Defines a requirement to check for invalid certificates.

ModuleCompatibilityRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/ModuleCompatibilityRequirement.php

Defines a module compatibility requirement.

SharedSecretRequirement in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/SharedSecretRequirement.php

Verify shared secret is stored locally and matches remote shared secret.