diff --git a/Changelog.md b/Changelog.md
index d23e884..3b2a046 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,6 +2,8 @@
 
 This update doesn't add any new features, simply a code simplification, using some of the .net 6 tools, such as global usings and file-scoped namespace declarations.
 
+This update adds some operations from calculus, as well as many new geometry structures.
+
 ```
 * Nerd_STF
     = Removed unused or unrequired usings in all files.