diff --git a/html/changelogs/AutoChangeLog-pr-12746.yml b/html/changelogs/AutoChangeLog-pr-12746.yml
new file mode 100644
index 0000000000..a81e5907ad
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-12746.yml
@@ -0,0 +1,4 @@
+author: "silicons"
+delete-after: True
+changes:
+ - rscadd: "chemical reactions now are sorted by priority first and temperature second."