diff --git a/html/changelogs/AutoChangeLog-pr-12821.yml b/html/changelogs/AutoChangeLog-pr-12821.yml
new file mode 100644
index 0000000000..7861bbc536
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-12821.yml
@@ -0,0 +1,4 @@
+author: "silicons"
+delete-after: True
+changes: 
+  - balance: "projectiles are by default 17.5 tiles per second instead of 12.5"