Clarification : Docker versions (redhat vs Docker)

Could you please clarify the below questions related to docker versions.

1) As per docker site, the latest version of commercially supported docker version is 1.13.1-cs9 and EE version is 17.03

https://docs.docker.com/cs-engine/1.13/release-notes/
https://docs.docker.com/enterprise/17.03/release-notes/

2) In the Redhat portal, the docker-latest version available is 1.13.1-53.git774336d

Could you please let me know how to map the redhat repository docker version and the docker's own version so that we know how many releases we are behind. It would help us to plan accordingly as few of
the features are available in the latest releases of docker.