diff --git a/.changeset/kind-cups-invent.md b/.changeset/kind-cups-invent.md
new file mode 100644
index 0000000..482e043
--- /dev/null
+++ b/.changeset/kind-cups-invent.md
@@ -0,0 +1,5 @@
+---
+"@iter-x/itertools": patch
+---
+
+implement some operation