diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+__Note__: You are viewing the development version README.
+For the README consistent with the latest released version see https://github.com/kickstarter/rack-attack/blob/6-stable/README.md.
+
 # Rack::Attack
 
 *Rack middleware for blocking & throttling abusive requests*