diff --git a/CHANGELOG b/CHANGELOG
index 8ea54d4..2020a1e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+*1.6.1_rc3* (June 16, 2009)
+
 * Fixed a variety of non-ASCII chars and similar [#610 state:resolved] (T.J. Crowder)
 
 * Add Chrome 1+ to the list of supported browsers. (kangax)
diff --git a/src/constants.yml b/src/constants.yml
index a12207d..4c389ab 100644
--- a/src/constants.yml
+++ b/src/constants.yml
@@ -1 +1 @@
-PROTOTYPE_VERSION: 1.6.1_rc2
+PROTOTYPE_VERSION: 1.6.1_rc3