diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4fe538..b75701f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.3.11] - 2026-08-26
+
+### Changed
+
+- Feat(analysis): per-step secondary multiplicity plots
+
 ## [0.3.10] - 2026-08-26
 
 ### Changed