diff --git a/html/changelogs/AutoChangeLog-sierra-pr-2784.yml b/html/changelogs/AutoChangeLog-sierra-pr-2784.yml
new file mode 100644
index 0000000000000..62d43b2b13caf
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+++ b/html/changelogs/AutoChangeLog-sierra-pr-2784.yml
@@ -0,0 +1,6 @@
+author: Sbotkin
+changes:
+  - {rscadd: Envelopes are craftable from cardboard.}
+  - {rscadd: Envelopes can be sealed and resealed with rubber stamps. Open envelope
+      will show the last stamp it was sealed with.}
+delete-after: true