diff --git a/README.md b/README.md
index bcf4ffd..ae92273 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ steps:
   - name: Setup CUDA
     uses: mjun0812/setup-cuda@v1
     with:
-      version: '12.4'
+      version: '13.0'
 ```
 
 ## Usage Examples
@@ -51,20 +51,20 @@ The latest patch version will be automatically selected.
 
 ```yaml
 steps:
-  - name: Setup CUDA 12.4
+  - name: Setup CUDA 13.0
     uses: mjun0812/setup-cuda@v1
     with:
-      version: '12.4'
+      version: '13.0'
 ```
 
 ### Install a specific patch version
 
 ```yaml
 steps:
-  - name: Setup CUDA 12.4.1
+  - name: Setup CUDA 13.0.1
     uses: mjun0812/setup-cuda@v1
     with:
-      version: '12.4.1'
+      version: '13.0.1'
 ```
 
 ### Specify installation method
@@ -74,7 +74,7 @@ steps:
   - name: Setup CUDA with network installer
     uses: mjun0812/setup-cuda@v1
     with:
-      version: '12.4'
+      version: '13.0'
       method: 'network'  # or 'local', 'auto'
 ```
 
@@ -106,7 +106,7 @@ TestContainer:
     - name: Setup CUDA
       uses: mjun0812/setup-cuda@v1
       with:
-        version: '12.4'
+        version: '13.0'
 ```
 
 ## Inputs
@@ -119,8 +119,8 @@ TestContainer:
 
 - `latest`: Install the latest available version
 - `Major` (e.g., `13`): Install the latest minor version for the specified major version
-- `Major.Minor` (e.g., `12.4`): Install the latest patch version for the specified major.minor version
-- `Major.Minor.Patch` (e.g., `12.4.1`): Install the exact version specified
+- `Major.Minor` (e.g., `13.0`): Install the latest patch version for the specified major.minor version
+- `Major.Minor.Patch` (e.g., `13.0.1`): Install the exact version specified
 
 **Required**: No
 **Default**: `latest`
@@ -142,7 +142,7 @@ TestContainer:
 
 ### `version`
 
-The full version string of NVIDIA CUDA that was actually installed (e.g., `12.4.1`).
+The full version string of NVIDIA CUDA that was actually installed (e.g., `13.0.1`).
 
 **Example**:
 
@@ -151,7 +151,7 @@ The full version string of NVIDIA CUDA that was actually installed (e.g., `12.4.
   id: cuda
   uses: mjun0812/setup-cuda@v1
   with:
-    version: '12.4'
+    version: '13.0'
 
 - name: Print installed version
   run: echo "Installed CUDA version ${{ steps.cuda.outputs.version }}"
@@ -200,7 +200,7 @@ If the network installer fails, the action will automatically fall back to the l
 - name: Setup CUDA with local installer
   uses: mjun0812/setup-cuda@v1
   with:
-    version: '12.4'
+    version: '13.0'
     method: 'local'
 ```
 
diff --git a/docs/dev.md b/docs/dev.md
new file mode 100644
index 0000000..ec90fd1
--- /dev/null
+++ b/docs/dev.md
@@ -0,0 +1,204 @@
+# Development Guide
+
+## Prerequisites
+
+- Node.js >= 24.0.0
+- pnpm (version specified in package.json: 10.18.3)
+
+## Setup
+
+Install dependencies:
+
+```bash
+pnpm install
+```
+
+## Development Workflow
+
+### 1. Create a Feature Branch
+
+Always work on a feature branch, not directly on `main`:
+
+```bash
+git checkout -b <your-branch-name>
+```
+
+Branch naming convention (recommended):
+- `feat/<feature-name>` - for new features
+- `fix/<bug-name>` - for bug fixes
+- `docs/<doc-name>` - for documentation
+- `refactor/<refactor-name>` - for refactoring
+
+### 2. Make Changes
+
+After making code changes, run the following commands locally:
+
+```bash
+# Format code
+pnpm run format
+
+# Lint
+pnpm run lint:fix
+
+# Type check
+pnpm run typecheck
+
+# Run tests
+pnpm run test
+
+# Build
+pnpm run build
+
+# Or run all at once
+pnpm run all
+```
+
+**Important**: Always commit the `dist/` directory after building. The built files must be committed because GitHub Actions runs the action from the repository directly.
+
+### 3. Commit Changes
+
+Follow Conventional Commits format:
+
+```bash
+git add .
+git commit -m "feat: add new feature"
+```
+
+Commit message format:
+- `feat:` - new feature
+- `fix:` - bug fix
+- `docs:` - documentation changes
+- `refactor:` - code refactoring
+- `test:` - test changes
+- `ci:` - CI/CD changes
+
+### 4. Push and Create PR
+
+```bash
+git push origin <your-branch-name>
+```
+
+Then create a PR on GitHub targeting the `main` branch.
+
+## CI/CD
+
+### CI Workflow (`.github/workflows/ci.yml`)
+
+Runs on:
+- Pull requests to `main`
+- Pushes to `main`
+
+Jobs:
+1. **Format-Lint-TypeCheck**
+   - Checks code formatting with Prettier
+   - Lints code with ESLint
+   - Type checks with TypeScript
+   - Runs unit tests with Vitest
+
+2. **Test**
+   - Tests the action on multiple platforms:
+     - Windows: windows-latest
+     - Linux: ubuntu-latest, ubuntu-24.04-arm
+   - Tests with different installation methods: local, network, auto
+   - Tests with latest CUDA version
+
+3. **ci-check**
+   - Final status check that ensures all jobs passed
+
+### Full Test Workflow (`.github/workflows/full-test.yml`)
+
+Runs on:
+- Manual trigger (workflow_dispatch)
+- Weekly schedule (Sunday at 3 AM UTC)
+
+Comprehensive testing matrix:
+- OS: windows-latest, windows-2025, windows-2022, ubuntu-latest, ubuntu-24.04, ubuntu-22.04, ubuntu-24.04-arm, ubuntu-22.04-arm
+- CUDA versions: 10.0, 11.0, 12.0, 13.0, latest
+- Methods: local, auto
+
+### Container Test Workflow (`.github/workflows/container-test.yml`)
+
+Runs on:
+- Manual trigger (workflow_dispatch)
+
+Tests on container environments:
+- almalinux:9
+- fedora:latest
+- quay.io/pypa/manylinux_2_28_x86_64
+
+## Release Process
+
+### 1. Ensure `dist/` is Up-to-Date
+
+Before creating a release, make sure the `dist/` directory is built and committed:
+
+```bash
+pnpm run build
+git add dist/
+git commit -m "build: update dist for release"
+git push
+```
+
+### 2. Create and Push a Tag
+
+Tags must follow the format `v<major>.<minor>.<patch>` (Semantic Versioning):
+
+```bash
+git tag v1.2.3
+git push origin v1.2.3
+```
+
+### 3. Release Workflow Triggers
+
+When a tag matching `v[0-9]+.[0-9]+.[0-9]+` is pushed, the release workflow (`.github/workflows/release.yml`) automatically:
+
+1. Checks out the code
+2. Installs dependencies
+3. Builds the project
+4. Verifies that `dist/` is up-to-date (fails if uncommitted changes exist)
+5. Creates a GitHub release with auto-generated release notes
+6. Updates the major version tag (e.g., `v1`) to point to the new release
+
+Example:
+- Push `v1.2.3` → Creates release and updates `v1` tag to point to `v1.2.3`
+- This allows users to reference `mjun0812/setup-cuda@v1` to always get the latest v1.x.x
+
+## Testing Locally
+
+### Unit Tests
+
+```bash
+# Run tests once
+pnpm run test
+
+# Run tests in watch mode
+pnpm run test:watch
+
+# Run tests with coverage
+pnpm run test:coverage
+```
+
+### Integration Test
+
+To test the action locally, you can create a test workflow in `.github/workflows/` and trigger it manually, or use [act](https://github.com/nektos/act) to run GitHub Actions locally.
+
+## Project Structure
+
+```
+.
+├── src/              # TypeScript source code
+├── dist/             # Compiled JavaScript (must be committed)
+├── .github/
+│   └── workflows/    # CI/CD workflows
+├── docs/             # Documentation
+├── package.json      # Project metadata and scripts
+├── action.yml        # GitHub Action definition
+└── tsconfig.json     # TypeScript configuration
+```
+
+## Notes
+
+- The `dist/` directory must always be committed after changes
+- The release workflow will fail if `dist/` is not up-to-date
+- Major version tags (e.g., `v1`) are automatically updated on release
+- CI runs automatically on all PRs to ensure code quality