diff --git a/html/changelogs/AutoChangeLog-pr-15011.yml b/html/changelogs/AutoChangeLog-pr-15011.yml
new file mode 100644
index 0000000000..ecec45b7b4
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-15011.yml
@@ -0,0 +1,4 @@
+author: "Putnam3145"
+delete-after: True
+changes: 
+  - rscadd: "Lavaland/ice planet atmos is no longer a preset gas mixture and varies per round"