The Application Backup feature in Stork, which enables the backup of both application data (PVCs) and its corresponding Kubernetes object configurations (such as Deployments, Services, and ConfigMaps), was introduced in Stork version 2.3. Versions prior to 2.3 only supported snapshotting Portworx volumes without the associated application context. Therefore, 2.3 is the minimum required version to perform an Application Backup.

A. Any Stork version works: This is incorrect because the Application Backup feature, which uses the ApplicationBackup CRD, was a specific feature introduced in version 2.3 and is not present in earlier versions.

B. Stork 23.3.0: While this version and later versions support Application Backups, it is not the minimum required version. The functionality has been available since the much earlier 2.3 release.

1. Portworx Official Documentation

"Backup and restore applications using Stork": Under the "Prerequisites" section

the documentation explicitly states the minimum version requirement.

Reference: "Stork version 2.3 or newer."

Source: Portworx Enterprise Documentation

Storage Operations -> Backup and Restore -> Stork -> Backup and restore applications using Stork. (The exact URL may change

but the path within the documentation hierarchy is consistent).