diff --git a/README.md b/README.md
index 15a2334..8693181 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 ![Stringy](http://danielstjules.com/github/stringy-logo.png)
 
 A PHP string manipulation library with multibyte support. Compatible with PHP
-5.3+ and HHVM.
+5.3+ and HHVM. Refer to the [1.x branch](https://github.com/danielstjules/Stringy/tree/1.x)
+for older documentation.
 
 ``` php
 s('string')->toTitleCase()->ensureRight('y') == 'Stringy'