diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..489df96
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,19 @@
+# Changelog
+
+## 1.0.0 (2023-01-04)
+
+
+### Features
+
+* add http basic auth to POST endpoint ([85ed04d](https://github.com/openfoodfacts/openfoodfacts-events/commit/85ed04d03e9d4216b1f4ca10f25af874c849baf8))
+* update schemas ([6465464](https://github.com/openfoodfacts/openfoodfacts-events/commit/646546462781f72f80d1a1799bc3fbd1a0ee0c14))
+
+
+### Bug Fixes
+
+* constants knit ([8663eae](https://github.com/openfoodfacts/openfoodfacts-events/commit/8663eae44ce7aac7fd3e837f03c78ba99e3c8961))
+* event base schema timestamp ([6ca13a6](https://github.com/openfoodfacts/openfoodfacts-events/commit/6ca13a6caca8244a31ec5d99b2c2f9dcd242abeb))
+* handle unreferenced events to pass anyway ([b88ccd7](https://github.com/openfoodfacts/openfoodfacts-events/commit/b88ccd74e2d0682751e50fe19a4445d2dbb2dfdc))
+* syntax issue ([65fc3c8](https://github.com/openfoodfacts/openfoodfacts-events/commit/65fc3c85914c0c182ca5dfcdbfdb55ac4989face))
+* timestamp server default ([430a461](https://github.com/openfoodfacts/openfoodfacts-events/commit/430a4611309fce64f9ec126cb354f13ff32fbb9f))
+* update requirements.txt ([7fdf34f](https://github.com/openfoodfacts/openfoodfacts-events/commit/7fdf34f3db2f84fb04757d7b75c242b36f0ffdcc))
diff --git a/version.txt b/version.txt
index 8acdd82..3eefcb9 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.0.1
+1.0.0