@jamessmith1652

Would be good if you post your answer. My answer is you can get the deployments to see the images and their tags. Tags are a clue to the app version.
It may or may not be possible to get the app source code, it depends if it has been copied to the containers or not. If yes (for example, built on the same container from which it runs), great. If the containers only contain standalone binaries then there is no way to get the source code (e.g. a Golang binary), let alone the version of the source code.

@satishalla

There are several ways... May be deployment logs, if you use ci/cd tools like jenkins or gitlab...or from application apis or from kubernetes annotations.