diff --git a/changelog.d/2270.feature.md b/changelog.d/2270.feature.md
new file mode 100644
index 000000000..9b9c373a1
--- /dev/null
+++ b/changelog.d/2270.feature.md
@@ -0,0 +1,2 @@
+The server now calculates some data for `unsigned` data when sending it to clients, rather than embedding it at rest. This brings decreased storage costs and improved access control checks.
+Contributed by @nex.