PILOT-7189: add Version note for pilot release

.github/pull_request_template.md

@@ -26,3 +26,8 @@ Are there any new or updated tests to validate the changes?
 ## Test Directions
 
 (Additional instructions for how to run tests or validate functionality if not covered by unit tests)
+
+## Versions
+
+- Pilot Release Version:
+- Compatible Version:

README.md

@@ -41,6 +41,15 @@ Command line tool that allows the user to execute data operations on the platfor
 
     ./app/bundled_app/linux/pilotcli --help
 
+
+## Compatible versions
+
+| Cli Version | Pilot Release Version | Compatible Version |
+|----------|----------|----------|
+| 3.15.0   | 2.14.2  | 2.14.2   |
+| 3.15.1   | 2.14.2  | 2.14.2   |
+| 3.15.2   | 2.15  | 2.15   |
+
 ### Build Instructions
 1. Each system has its own credential, so building should be done after the updated the env file.
 2. Run build commands for your system.