diff --git a/CHANGELOG.md b/CHANGELOG.md
index c719bb6a..6b33f765 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 2.67.0
+
+* Reduce memory consumption of duplicate attribute names in `serial_feature`
+* The maxzoom guess calculation now takes into account the number of duplicate feature locations
+
 # 2.66.0
 
 * Only bin by ID, not by geometry, if --bin-by-id-list is specified
diff --git a/version.hpp b/version.hpp
index 9f99f897..8f846676 100644
--- a/version.hpp
+++ b/version.hpp
@@ -1,6 +1,6 @@
 #ifndef VERSION_HPP
 #define VERSION_HPP
 
-#define VERSION "v2.66.0"
+#define VERSION "v2.67.0"
 
 #endif