diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..c8b1b92
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,18 @@
+# Changelog
+
+## 1.0.0 (2026-06-30)
+
+
+### Features
+
+* OPAQUE (RFC 9807) PAKE client with password-policy validation ([60d9a07](https://github.com/structured-id/opaque/commit/60d9a07654068dec561d641217cdf0ff02ba6948))
+
+
+### Bug Fixes
+
+* **opaque-zkpp:** deploy threaded wasm variants + wire backend-wasm to generate_zkpp_proof ([b43a8c9](https://github.com/structured-id/opaque/commit/b43a8c90bddb4e997405f8e1a29636d041fa495a))
+
+
+### Performance Improvements
+
+* **opaque-zkpp:** persistent worker pool reused across stages + commit-MSM worker ([41b46a4](https://github.com/structured-id/opaque/commit/41b46a487691315c6833c33fc95a6c5d21b7a989))
diff --git a/package.json b/package.json
index d0bac15..b5fb2dd 100644
--- a/package.json
+++ b/package.json
@@ -13,5 +13,6 @@
   },
   "engines": {
     "node": ">=20"
-  }
+  },
+  "version": "1.0.0"
 }