diff --git a/CHANGELOG b/CHANGELOG
index d42b884..f5df87f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,6 @@
-* Avoid triggering warning when Java is disabled in IE8. [#668 state:resolved] (orv, kangax, Andrew Dupont, Tobie Langel)
+*1.6.1* (August 24, 2009)
+
+* Avoid triggering a warning when Java is disabled in IE8. [#668 state:resolved] (orv, kangax, Andrew Dupont, Tobie Langel)
 
 * Simplify String#(un)escapeHTML and remove their DOM dependencies. (Tobie Langel)
 
diff --git a/src/constants.yml b/src/constants.yml
index 4c389ab..9be5d27 100644
--- a/src/constants.yml
+++ b/src/constants.yml
@@ -1 +1 @@
-PROTOTYPE_VERSION: 1.6.1_rc3
+PROTOTYPE_VERSION: 1.6.1