diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92b3059..08ace55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Improved performance of integration and propagation by about 10%.
 - Restructured the Rust FOVs to be organized by observatory.
 - Renamed `SpiceKernels.cache_kernel_reload` to `kernel_reload` and changed it's args.