Can you verify all the tags are available on the new AEM version.

We can implement custom validators.Please check below example for validators.https://medium.com/@ramamity94/easily-achieving-dialog-validations-in-aem-touch-ui-e78106012282 

Please find the some of the same code below. Resource fragmentResource = resourceResolver.getResource(fragmentPath); if (null != fragmentResource) { ContentFragment contentFragment = fragmentResource.adaptTo(ContentFragment.class); if (null != contentFragment) { ...

Hi @simirving ,I think you are combining two different things here.We have two different dropdown options based on whether editing is done to page or templateIf you are editing the page you can see below options On this you cannot see the policies but you can see the + icon to add the components on ...

Please make sure u are selected edit mode on the top right (dropdown)

Please find the screenshot for concurrent and cluster job configurations Reference URL : https://sling.apache.org/documentation/bundles/scheduler-service-commons-scheduler.html#preventing-concurrent-execution-1

Check for the https://www.adobe.io/experience-cloud/cloud-manager/reference/playground/#/api/program/{program_id}/pipeline/{pipeline_id}/execution/{execution_id} Validate the Json with the trigger property as below 

Thanks for the above points Marcus. We have completed the code related changes and also tried upgrading the jar directly from old to new instance using oaktool but i see repository is reduced is this expected ?

Is this possible to lower to higher with versions and timeline history ?

Thanks for the response.It says both needs to be same version is it mandatory or lower to higher version is also possible ?If possible then i also need to migrate the versions and timeline history on pages and dam is this can be achievable from this ?