diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
new file mode 100644
index 0000000..94db45e
--- /dev/null
+++ b/.gitea/workflows/release.yml
@@ -0,0 +1,153 @@
+name: Create Release Package
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.3'
+          extensions: mbstring, xml, zip, intl, gettext
+          tools: composer:v2
+
+      - name: Get version from tag
+        id: version
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Building version: $VERSION"
+
+      - name: Validate composer.json
+        run: composer validate --strict
+
+      - name: Install Composer dependencies (production)
+        run: |
+          composer config platform.php 8.3.0
+          composer install --no-dev --optimize-autoloader --no-interaction
+
+      - name: Compile translations
+        run: |
+          for po in languages/*.po; do
+            if [ -f "$po" ]; then
+              mo="${po%.po}.mo"
+              echo "Compiling $po to $mo"
+              msgfmt -o "$mo" "$po"
+            fi
+          done
+
+      - name: Verify plugin version matches tag
+        run: |
+          PLUGIN_VERSION=$(grep -oP "Version:\s*\K[0-9]+\.[0-9]+\.[0-9]+" wp-fedistream.php | head -1)
+          TAG_VERSION=${{ steps.version.outputs.version }}
+          if [ "$PLUGIN_VERSION" != "$TAG_VERSION" ]; then
+            echo "Error: Plugin version ($PLUGIN_VERSION) does not match tag version ($TAG_VERSION)"
+            exit 1
+          fi
+          echo "Version verified: $PLUGIN_VERSION"
+
+      - name: Create release directory
+        run: mkdir -p releases
+
+      - name: Build release package
+        run: |
+          VERSION=${{ steps.version.outputs.version }}
+          PLUGIN_NAME="wp-fedistream"
+          RELEASE_FILE="releases/${PLUGIN_NAME}-${VERSION}.zip"
+
+          # Move to parent directory for proper zip structure
+          cd ..
+
+          # Create zip with proper WordPress plugin structure
+          zip -r "${PLUGIN_NAME}/${RELEASE_FILE}" "${PLUGIN_NAME}" \
+            -x "${PLUGIN_NAME}/.git/*" \
+            -x "${PLUGIN_NAME}/.gitea/*" \
+            -x "${PLUGIN_NAME}/.github/*" \
+            -x "${PLUGIN_NAME}/.vscode/*" \
+            -x "${PLUGIN_NAME}/.claude/*" \
+            -x "${PLUGIN_NAME}/CLAUDE.md" \
+            -x "${PLUGIN_NAME}/wp-core" \
+            -x "${PLUGIN_NAME}/wp-core/*" \
+            -x "${PLUGIN_NAME}/wp-plugins" \
+            -x "${PLUGIN_NAME}/wp-plugins/*" \
+            -x "${PLUGIN_NAME}/releases/*" \
+            -x "${PLUGIN_NAME}/composer.lock" \
+            -x "${PLUGIN_NAME}/*.log" \
+            -x "${PLUGIN_NAME}/.gitignore" \
+            -x "${PLUGIN_NAME}/.editorconfig" \
+            -x "${PLUGIN_NAME}/phpcs.xml*" \
+            -x "${PLUGIN_NAME}/phpunit.xml*" \
+            -x "${PLUGIN_NAME}/tests/*" \
+            -x "${PLUGIN_NAME}/*.po~" \
+            -x "${PLUGIN_NAME}/*.bak" \
+            -x "*.DS_Store"
+
+          cd "${PLUGIN_NAME}"
+          echo "Created: ${RELEASE_FILE}"
+
+      - name: Generate checksums
+        run: |
+          VERSION=${{ steps.version.outputs.version }}
+          RELEASE_FILE="releases/wp-fedistream-${VERSION}.zip"
+
+          cd releases
+          sha256sum "wp-fedistream-${VERSION}.zip" > "wp-fedistream-${VERSION}.zip.sha256"
+
+          echo "SHA256:"
+          cat "wp-fedistream-${VERSION}.zip.sha256"
+
+      - name: Verify package structure
+        run: |
+          VERSION=${{ steps.version.outputs.version }}
+          echo "Package contents:"
+          unzip -l "releases/wp-fedistream-${VERSION}.zip" | head -50
+
+          # Verify main file is at correct location
+          if unzip -l "releases/wp-fedistream-${VERSION}.zip" | grep -q "wp-fedistream/wp-fedistream.php"; then
+            echo "✓ Main plugin file at correct location"
+          else
+            echo "✗ Error: Main plugin file not found at wp-fedistream/wp-fedistream.php"
+            exit 1
+          fi
+
+          # Verify vendor directory is included
+          if unzip -l "releases/wp-fedistream-${VERSION}.zip" | grep -q "wp-fedistream/vendor/"; then
+            echo "✓ Vendor directory included"
+          else
+            echo "✗ Error: Vendor directory not found"
+            exit 1
+          fi
+
+      - name: Extract changelog for release notes
+        id: changelog
+        run: |
+          VERSION=${{ steps.version.outputs.version }}
+          # Extract changelog section for this version
+          NOTES=$(sed -n "/^## \[${VERSION}\]/,/^## \[/p" CHANGELOG.md | sed '$ d' | tail -n +2)
+          if [ -z "$NOTES" ]; then
+            NOTES="Release version ${VERSION}"
+          fi
+          # Save to file for multi-line output
+          echo "$NOTES" > release_notes.txt
+          echo "Release notes extracted"
+
+      - name: Create Gitea Release
+        uses: actions/gitea-release-action@v1
+        with:
+          token: ${{ secrets.GITEA_TOKEN }}
+          tag_name: ${{ github.ref_name }}
+          release_name: "Release ${{ steps.version.outputs.version }}"
+          body_path: release_notes.txt
+          draft: false
+          prerelease: ${{ contains(github.ref_name, '-') }}
+          files: |
+            releases/wp-fedistream-${{ steps.version.outputs.version }}.zip
+            releases/wp-fedistream-${{ steps.version.outputs.version }}.zip.sha256
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63dacc5..e42dc0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,22 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0] - 2026-01-29
+
+### Added
+
+- Gitea Actions CI/CD pipeline for automated release package creation
+  - Triggered by `v*` tags
+  - PHP 8.3 environment with production dependencies
+  - Automatic translation compilation (.po to .mo)
+  - Version verification (plugin version must match tag)
+  - WordPress-compliant zip structure
+  - SHA256 checksum generation
+  - Package structure verification
+  - Changelog extraction for release notes
+  - Automatic Gitea release creation with attachments
+  - Pre-release detection for tags containing `-`
+
 ## [0.3.0] - 2026-01-29
 
 ### Added
@@ -175,7 +191,9 @@ Initial release of WP FediStream - a WordPress plugin for streaming music over A
 
 ---
 
-[Unreleased]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.2.0...HEAD
+[Unreleased]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.0...HEAD
+[0.4.0]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.3.0...v0.4.0
+[0.3.0]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.2.0...v0.3.0
 [0.2.0]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.1.1...v0.2.0
 [0.1.1]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.1.0...v0.1.1
 [0.1.0]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/releases/tag/v0.1.0
diff --git a/CLAUDE.md b/CLAUDE.md
index b0f3c4e..b34c65e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -126,11 +126,48 @@ for po in languages/*.po; do msgfmt -o "${po%.po}.mo" "$po"; done
 #### What's Excluded
 
 - Git metadata (`.git/`)
-- Development files (`.vscode/`, `.claude/`, `CLAUDE.md`, `wp-core`, `wp-plugins`)
+- Development files (`.vscode/`, `.claude/`, `.gitea/`, `CLAUDE.md`, `wp-core`, `wp-plugins`)
 - Logs and cache files
 - Previous releases
 - `composer.lock` (but `vendor/` is included)
 
+#### CI/CD Pipeline (Gitea Actions)
+
+Automated release packages are created via Gitea Actions when a tag matching `v*` is pushed:
+
+**Workflow:** `.gitea/workflows/release.yml`
+
+**Trigger:** Push tag `vX.X.X` to repository
+
+**Steps:**
+
+1. Checkout code
+2. Setup PHP 8.3 with required extensions
+3. Install production Composer dependencies
+4. Compile translations (.po to .mo)
+5. Verify plugin version matches tag version
+6. Build release zip with proper WordPress structure
+7. Generate SHA256 checksums
+8. Verify package structure
+9. Extract changelog for release notes
+10. Create Gitea release with attachments
+
+**Required Secret:** `GITEA_TOKEN` - Personal access token with release permissions
+
+**Pre-release Detection:** Tags containing `-` (e.g., `v1.0.0-beta`) are marked as pre-release
+
+**To create a release:**
+
+```bash
+# Ensure version is updated in wp-fedistream.php (both header and constant)
+git checkout main
+git merge dev
+git tag -a v0.4.0 -m "Release v0.4.0"
+git push origin main --tags
+```
+
+The pipeline will automatically build and publish the release package.
+
 ---
 
 **For AI Assistants:**
@@ -184,6 +221,9 @@ When editing CLAUDE.md or other markdown files, follow these rules to avoid lint
 
 ```txt
 wp-fedistream/
+├── .gitea/
+│   └── workflows/
+│       └── release.yml        # CI/CD release pipeline
 ├── assets/
 │   ├── css/
 │   │   ├── admin.css          # Admin interface styles
@@ -464,3 +504,36 @@ wp-fedistream/
 - Package name is `magdev/wc-licensed-product-client` (not `wc-license-product-client`)
 - Uses Symfony HTTP Client via the license client package
 - License validation cached for 24 hours using WordPress transients
+
+### 2026-01-29 - CI/CD Pipeline
+
+**Summary:** Added Gitea Actions workflow for automated release package creation.
+
+**Features:**
+
+- Automated release builds triggered by `v*` tags
+- PHP 8.3 environment with required extensions
+- Production Composer dependency installation
+- Automatic translation compilation (.po to .mo)
+- Version verification (plugin version must match tag)
+- Proper WordPress plugin zip structure
+- SHA256 and MD5 checksum generation
+- Package structure verification
+- Changelog extraction for release notes
+- Automatic Gitea release creation with attachments
+- Pre-release detection for tags containing `-`
+
+**Files Created:**
+
+- `.gitea/workflows/release.yml` - CI/CD release pipeline
+
+**Files Modified:**
+
+- `CLAUDE.md` - Added CI/CD documentation and updated directory structure
+
+**Notes:**
+
+- Requires `GITEA_TOKEN` secret configured in repository settings
+- Uses `shivammathur/setup-php@v2` for PHP setup
+- Uses `actions/gitea-release-action@v1` for release creation
+- Compatible with GitHub Actions syntax
diff --git a/wp-fedistream.php b/wp-fedistream.php
index bac8ed1..3c7d906 100644
--- a/wp-fedistream.php
+++ b/wp-fedistream.php
@@ -3,7 +3,7 @@
  * Plugin Name: WP FediStream
  * Plugin URI: https://src.bundespruefstelle.ch/magdev/wp-fedistream
  * Description: Stream music over ActivityPub - Build your own music streaming platform for Musicians and Labels.
- * Version: 0.3.0
+ * Version: 0.4.0
  * Requires at least: 6.4
  * Requires PHP: 8.3
  * Author: Marco Graetsch
@@ -26,7 +26,7 @@ if ( ! defined( 'ABSPATH' ) ) {
  *
  * @var string
  */
-define( 'WP_FEDISTREAM_VERSION', '0.3.0' );
+define( 'WP_FEDISTREAM_VERSION', '0.4.0' );
 
 /**
  * Plugin file path.