https://docs.docker.com/reference/api/engine/version-history/#v144-api-changes 

GET /containers/json

• The Aliases field returned in calls to GET /containers/{name:.*}/json in v1.44 and older versions contains the short container ID. This will change in the next API version, v1.45. Starting with that API version, this specific value will be removed from the Aliases field such that this field will reflect exactly the values originally submitted to the POST /containers/create endpoint. The newly introduced DNSNames should now be used instead.

• Probably a deprecation notice for 1.45

GET /containers/{name}/json

• The Aliases field returned in calls to GET /containers/{name:.*}/json in v1.44 and older versions contains the short container ID. This will change in the next API version, v1.45. Starting with that API version, this specific value will be removed from the Aliases field such that this field will reflect exactly the values originally submitted to the POST /containers/create endpoint. The newly introduced DNSNames should now be used instead.

• Probably a deprecation notice for 1.45