-However, there are two items in this repo that must be kept in sync: ``rmr-version.yaml``, which controls what rmr gets installed for unit testing in Jenkins, and ``integration_tests/install_rmr.sh`` which is a useful script for a variety of local testing.
+As of 2020/02/13, A1 (Dockerfile), Dockerfile-Unit-Test, and all three
+integration test receivers use an Alpine base image and install RMR
+from a base builder image. Must update and rebuild all 5 containers
+in the A1 repo (or just A1 itself for prod usage).