Add revwalk note to CHANGELOG
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4fd68d..dae86de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ v0.24 + 1
* Support for reading and writing git index v4 files
+* Improve the performance of the revwalk and bring us closer to git's code.
+
### API additions
* You can now get the user-agent used by libgit2 using the