diff --git a/html/changelogs/AutoChangeLog-pr-8400.yml b/html/changelogs/AutoChangeLog-pr-8400.yml
new file mode 100644
index 00000000000..04b790f82d7
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-8400.yml
@@ -0,0 +1,4 @@
+author: "uraniummeltdown"
+delete-after: True
+changes: 
+  - tweak: "Plants no longer take twice as many cycles to age"