diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 823c82d..ad4f638 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,6 +5,14 @@ antsibull-docs -- TypeScript library for processing Ansible documentation markup
 .. contents:: Topics
 
 
+v1.0.0
+======
+
+Release Summary
+---------------
+
+First stable release. This package is using semantic versioning, so there will be no more breaking changes until the release of 2.0.0.
+
 v0.4.0
 ======
 
diff --git a/changelogs/changelog.yaml b/changelogs/changelog.yaml
index 91660cd..72dcca1 100644
--- a/changelogs/changelog.yaml
+++ b/changelogs/changelog.yaml
@@ -98,3 +98,10 @@ releases:
     - 49-camel-case.yml
     - 51-urls-md.yml
     release_date: '2023-04-23'
+  1.0.0:
+    changes:
+      release_summary: First stable release. This package is using semantic versioning,
+        so there will be no more breaking changes until the release of 2.0.0.
+    fragments:
+    - 1.0.0.yml
+    release_date: '2023-04-27'
diff --git a/changelogs/fragments/1.0.0.yml b/changelogs/fragments/1.0.0.yml
deleted file mode 100644
index 12fc7db..0000000
--- a/changelogs/fragments/1.0.0.yml
+++ /dev/null
@@ -1 +0,0 @@
-release_summary: First stable release. This package is using semantic versioning, so there will be no more breaking changes until the release of 2.0.0.