diff --git a/changelog.txt b/changelog.txt
index 57e7a76a..64d7e821 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,6 +1,8 @@
 OPENSEADRAGON CHANGELOG
 =======================
 
+2.4.0: (In Progress)
+
 2.3.1:
 
 * Debug mode now uses different colors for different tiled images (customizable via debugGridColor) (#1271)