diff --git a/html/changelogs/AutoChangeLog-pr-138.yml b/html/changelogs/AutoChangeLog-pr-138.yml
new file mode 100644
index 00000000000..fd8045e5320
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-138.yml
@@ -0,0 +1,4 @@
+author: "bobbahbrown"
+delete-after: True
+changes: 
+  - refactor: "Documented timer subsystem, minor refactoring to improve code quality"