The following properties should be added to https://docs.magnolia-cms.com/product-docs/6.2/Templating/Dialog-definition/Field-definition/List-of-fields/Upload-field.html#_common_upload_field_properties:

• typeAbortMessage (default is translated fields.uploadField.upload.abort key)
• sizeAbortMessage (the value is i18n-able)

https://git.magnolia-cms.com/projects/PLATFORM/repos/ui/browse/magnolia-ui-framework/src/main/java/info/magnolia/ui/field/UploadFieldDefinition.java#79-80

The allowedMimeTypePattern property is no longer a regex pattern. Instead, it is a list of accepted MIME types with possible wildcards. The default value is "" (all types).

https://git.magnolia-cms.com/projects/PLATFORM/repos/ui/browse/magnolia-ui-framework/src/main/java/info/magnolia/ui/field/UploadFieldDefinition.java#77

For more information, see this Magnolia DAM app configuration snippet (https://git.magnolia-cms.com/projects/MODULES/repos/dam/browse/magnolia-dam-app-jcr/src/main/resources/dam-app-jcr/dialogs/uploadAndEdit.yaml#9) or https://vaadin.com/docs/latest/ds/components/upload/#upload-restrictions.

If used, the following i18n key needs to be configured in the Assets app (see https://docs.magnolia-cms.com/product-docs/6.2/Administration/Language/Generic-i18n-keys.html for other apps):

• dam.upload.field.sizeAbortMessage