diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dacb96d54..4885316dd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.4.15
+
+* SpatialPooler: Tweak the boost factor rounding to mimic numpy's rounding of float32s
+
 ## 0.4.14
 
 * SpatialPooler: New boosting algorithm
diff --git a/VERSION b/VERSION
index e6196c8fc3..4ea988fb19 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.4.15.dev0
+0.4.15