diff --git a/.release-please/main-manifest.json b/.release-please/main-manifest.json
index 0967ef4..11fea0f 100644
--- a/.release-please/main-manifest.json
+++ b/.release-please/main-manifest.json
@@ -1 +1 @@
-{}
+{".":"1.0.0"}
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..2f1dca3
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+
+## 1.0.0 (2026-03-31)
+
+
+### ⚠ BREAKING CHANGES
+
+* init [skip ci]
+
+### Miscellaneous Chores
+
+* init [skip ci] ([22be57b](https://github.com/OGS-GmbH/rolldown-plugin-package-json/commit/22be57b9a7c2ced877dcba1036e94ac1ef303969))