Push App-Version in Helm-Chart to 2.X

the latest version of the helm chart is still with an app version of 1.X. This is extremly confusing as the docs and the values already talk about external DB, which doesn't work with 1.X. I know, I can just set the image tag in the values.yaml, but I still think this should be properly aligned with what the docs show. 

Any reason not to bump the app version to 2.X? 