Changes to Get Milestones

added the optional property items/text/additionalProperties/importance to the response with the 200 status

removed the required property items/expected_age_months from the response with the 200 status

added the required property items/name to the response with the 200 status

removed the required property items/images/items/approved from the response with the 200 status

removed the required property items/images/items/filename from the response with the 200 status

added the required property items/images/items/id to the response with the 200 status

the response property items/images became required for the status 200

the response property items/text became required for the status 200

the images response's property default value was removed for the status 200

the text response's property default value {} was removed for the status 200

added the required property items/expected_age_months to the response with the 200 status