changelog

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Optimizations to SPICE kernel queries leading to a 13% speedup in orbit propagation,
+  along with >43% speedup in state queries from the spice kernels. Speedup from orbit
+  propagation comes directly from the spice kernel optimization.
 - Moved python wrappers over propagation into the rust backend entirely.
 - Simplified polymorphic support in the rust wrappers, removing some intermediate
   objects which were over-complicating the interface.