diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6af7a9751..55b724cbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,10 @@
 
 ##### Breaking
 
-* None.
+* SourceKitten now requires Xcode 8.x and Swift 3.0 to build.
+  APIs have not yet been adapted to conform to the Swift 3 API Design
+  Guidelines but will shortly.  
+  [Norio Nomura](https://github.com/norio-nomura)
 
 ##### Enhancements