diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..00bef4d
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,14 @@
+# Changelog
+
+## 1.0.0 (2026-07-12)
+
+
+### Features
+
+* Commit Chronicles app — SVG card renderer, Cloud Run API, and the Cortex reading ([#5](https://github.com/anchildress1/commit-chronicles/issues/5)) ([0a9f59c](https://github.com/anchildress1/commit-chronicles/commit/0a9f59c00470c8890e82e95fcf529a69dcf2fd0e))
+* detector + card contract that matches the render ([#4](https://github.com/anchildress1/commit-chronicles/issues/4)) ([2a27e2b](https://github.com/anchildress1/commit-chronicles/commit/2a27e2bc0547f0a32ff792aab56005dfe9bf3046))
+
+
+### Miscellaneous Chores
+
+* release 1.0.0 ([13612b4](https://github.com/anchildress1/commit-chronicles/commit/13612b40b0116949e5e83b5eb186e037f90100c3))
diff --git a/package-lock.json b/package-lock.json
index 3d3c29f..6c9b4ce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "commit-chronicles",
-  "version": "0.0.0",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "commit-chronicles",
-      "version": "0.0.0",
+      "version": "1.0.0",
       "dependencies": {
         "@google-cloud/storage": "^7.21.0",
         "@google-cloud/tasks": "^6.2.3",
diff --git a/package.json b/package.json
index a4e7fc8..f706cc4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "commit-chronicles",
-  "version": "0.0.0",
+  "version": "1.0.0",
   "private": true,
   "type": "module",
   "engines": {