diff --git a/README-branch.txt b/README-branch.txt
index 3a016b5b2..3cd89256d 100644
--- a/README-branch.txt
+++ b/README-branch.txt
@@ -1 +1 @@
-This is release branch v2.2 of MathJax.
+This is release branch v2.3 of MathJax.