update readme

Author: aptalca

README.md

@@ -171,6 +171,7 @@ Below are the instructions for updating containers:
 
 ## Versions
 
+* **21.02.19:** - Rebase to xenial due to incompatibility issues on some older host OSes.
 * **12.02.19:** - Rename github repo to match the docker hub repo and container name.
 * **07.02.19:** - Add pipeline logic and multi arch.
 * **31.01.19:** - Add port mappings to docker create sample in readme.

readme-vars.yml

@@ -60,6 +60,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "21.02.19:", desc: "Rebase to xenial due to incompatibility issues on some older host OSes." }
   - { date: "12.02.19:", desc: "Rename github repo to match the docker hub repo and container name." }
   - { date: "07.02.19:", desc: "Add pipeline logic and multi arch." }
   - { date: "31.01.19:", desc: "Add port mappings to docker create sample in readme." }