diff --git a/changelog.d/5859.feature b/changelog.d/5859.feature
new file mode 100644
index 0000000000..c897c66037
--- /dev/null
+++ b/changelog.d/5859.feature
@@ -0,0 +1,2 @@
+Add unstable support for MSC2197 (filtered search requests over federation), in
+order to allow upcoming room directory query performance improvements.