diff --git a/History.txt b/History.txt
index fee761f9..67fd7454 100644
--- a/History.txt
+++ b/History.txt
@@ -1,6 +1,6 @@
 === 3.5.0 2017-10-11
 
-* [#589] Add support for detaching sources from customers
+* [#589] Rename source `delete` to `detach` (and deprecate the former)
 
 === 3.4.1 2017-10-05