diff --git a/Nathanael Nerode/README.md b/Nathanael Nerode/README.md
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--- a/Nathanael Nerode/README.md	
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+The "master" branch of the directory contains extensions for use with the most recent development version of Inform (10.2).
+The "10.1" branch contains extensions for use with the 10.1 version of Inform.
+
 The files in this directory, to the extent that they are written by Nathanael Nerode,
 are licensed under the Creative Commons Attribution 4.0 International Public License (CC-BY),
 which is the standard license for Inform 7 Extensions.