diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..a055e8c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,8 @@
+# Changelog
+
+## 1.0.0 (2026-07-11)
+
+
+### Features
+
+* first commit ([bb82f06](https://github.com/seiya-koji/git-exclude-explorer/commit/bb82f06ea0243146df231ba49c45c20186321064))
diff --git a/package-lock.json b/package-lock.json
index 737d24b..aabb80b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "git-exclude-explorer",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "git-exclude-explorer",
-      "version": "0.0.1",
+      "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
         "@commitlint/cli": "^21.0.2",
diff --git a/package.json b/package.json
index 71a4a25..42e728d 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "git-exclude-explorer",
   "displayName": "Git Exclude Explorer",
   "description": "Browse and manage .git/info/exclude and your global gitignore in a dedicated tree view, with add/remove from the Explorer context menu.",
-  "version": "0.0.1",
+  "version": "1.0.0",
   "publisher": "seiya-koji",
   "repository": {
     "type": "git",