diff --git a/.changeset/selfish-pans-search.md b/.changeset/selfish-pans-search.md
new file mode 100644
index 00000000..8de83839
--- /dev/null
+++ b/.changeset/selfish-pans-search.md
@@ -0,0 +1,5 @@
+---
+'@api3/contracts': major
+---
+
+Support for API3 Market Phase 2.1