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@@ -1,4 +1,7 @@
 # HamShield
+
+The master branch is intended for use with HamShield hardware -09 and above.
+
 HamShield Arduino Library and Example Sketches
 
 This repository is meant to be checked out into your Arduino application's libraries folder. After reloading the application, the library and example sketches should be available for use.