diff --git a/.claude/agents/version-control-engineer.md b/.claude/agents/version-control-engineer.md
index ae4bcb1..40f6625 100644
--- a/.claude/agents/version-control-engineer.md
+++ b/.claude/agents/version-control-engineer.md
@@ -69,14 +69,65 @@ chore: bump version to 0.19.0
 git status
 
 # 2. Update version in pyproject.toml
-# Edit: version = "0.19.0"
+# Edit: version = "0.20.0"
 
-# 3. Commit version bump
-git add pyproject.toml
-git commit -m "chore: bump version to 0.19.0"
+# 3. Update CHANGELOG.md (see Changelog section below)
 
-# 4. Create git tag
-git tag -a v0.19.0 -m "Release v0.19.0"
+# 4. Commit version bump and changelog
+git add pyproject.toml CHANGELOG.md
+git commit -m "chore: bump version to 0.20.0"
+
+# 5. Create git tag
+git tag -a v0.20.0 -m "Release v0.20.0"
+```
+
+## Changelog Management
+
+### Changelog Location
+- File: `CHANGELOG.md`
+- Format: [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
+
+### Changelog Structure
+
+The changelog uses these categories under each version:
+- **Added**: New features
+- **Changed**: Changes to existing functionality
+- **Deprecated**: Features that will be removed
+- **Removed**: Features that were removed
+- **Fixed**: Bug fixes
+- **Security**: Security-related changes
+
+### Updating the Changelog
+
+**During Development:**
+1. Add changes to the `[Unreleased]` section as they are merged
+2. Use the appropriate category (Added, Changed, Fixed, etc.)
+3. Write clear, user-focused descriptions
+
+**During Release:**
+1. Rename `[Unreleased]` to `[X.Y.Z] - YYYY-MM-DD`
+2. Add a new empty `[Unreleased]` section at the top
+3. Update the comparison links at the bottom of the file
+
+**Example Changelog Entry:**
+```markdown
+## [Unreleased]
+
+### Added
+
+- New bulk delete operation for todos via `client.todo.delete_many()`
+
+### Fixed
+
+- Resolved timeout issue in async operations with large payloads
+```
+
+### Changelog Links
+
+Keep the comparison links at the bottom of CHANGELOG.md updated:
+```markdown
+[Unreleased]: https://github.com/franccesco/bloomy-python/compare/vX.Y.Z...HEAD
+[X.Y.Z]: https://github.com/franccesco/bloomy-python/compare/vA.B.C...vX.Y.Z
 ```
 
 ## Pull Request Workflow
@@ -141,36 +192,42 @@ uv run mkdocs build --strict
 
 # 3. Verify all tests pass
 # 4. Review recent commits for changelog
-git log --oneline v0.18.0..HEAD
+git log --oneline v0.19.0..HEAD
 ```
 
 ### Release Steps
 
 ```bash
-# 1. Update version in pyproject.toml
-# 2. Update CHANGELOG.md (if exists)
-
-# 3. Commit release
-git add pyproject.toml
-git commit -m "chore: bump version to 0.19.0"
+# 1. Update CHANGELOG.md
+#    - Move items from [Unreleased] to new version section
+#    - Add release date: ## [0.20.0] - 2025-12-10
+#    - Update comparison links at bottom
 
-# 4. Create annotated tag
-git tag -a v0.19.0 -m "Release v0.19.0
+# 2. Update version in pyproject.toml
+#    version = "0.20.0"
 
-Features:
-- Added bulk operations support
-- Improved async performance
+# 3. Commit release
+git add CHANGELOG.md pyproject.toml
+git commit -m "chore: release v0.20.0"
 
-Fixes:
-- Fixed date parsing issue
-"
+# 4. Create annotated tag (simple message - changelog is in CHANGELOG.md)
+git tag -a v0.20.0 -m "Release v0.20.0"
 
 # 5. Push with tags
 git push origin main --tags
 ```
 
-### Post-Release
-- Verify GitHub release is created
+### Automated GitHub Release
+
+When you push a tag matching `v*`, the GitHub Actions workflow (`.github/workflows/release.yml`) automatically:
+1. Extracts the changelog section for that version from CHANGELOG.md
+2. Creates a GitHub Release with the changelog as the release body
+3. Names the release after the tag (e.g., "v0.20.0")
+
+**No manual GitHub Release creation is needed!**
+
+### Post-Release Verification
+- Verify GitHub Release was created at: https://github.com/franccesco/bloomy-python/releases
 - Documentation auto-deploys via GitHub Actions
 - Manual PyPI publish if needed
 
@@ -219,6 +276,6 @@ git push origin --delete feature-branch
 
 ## Files to Update for Releases
 
+- `CHANGELOG.md` - Release notes (REQUIRED - move items from Unreleased, update links)
 - `pyproject.toml` - Version number
-- `CHANGELOG.md` - Release notes (if maintained)
-- `docs/` - Any version-specific documentation
+- `docs/` - Any version-specific documentation (if applicable)
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..aedec45
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,57 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Extract version from tag
+        id: version
+        run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
+
+      - name: Extract changelog for this version
+        id: changelog
+        run: |
+          # Extract the changelog section for this version
+          version="${{ steps.version.outputs.version }}"
+
+          # Use awk to extract the section between this version and the next
+          changelog=$(awk -v ver="$version" '
+            /^## \[/ {
+              if (found) exit
+              if ($0 ~ "\\[" ver "\\]") found=1
+              next
+            }
+            found && /^## \[/ { exit }
+            found { print }
+          ' CHANGELOG.md)
+
+          # Write to file to preserve formatting
+          echo "$changelog" > /tmp/release_notes.md
+
+          # Set output (escape newlines for GitHub Actions)
+          {
+            echo 'notes<<EOF'
+            cat /tmp/release_notes.md
+            echo 'EOF'
+          } >> $GITHUB_OUTPUT
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: v${{ steps.version.outputs.version }}
+          body: ${{ steps.changelog.outputs.notes }}
+          draft: false
+          prerelease: ${{ contains(steps.version.outputs.version, '-') }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..3042df4
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,214 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.19.0] - 2025-12-10
+
+### Fixed
+
+- Made `Position.name` field optional to handle null API responses from Bloom Growth API
+- Fixes Pydantic validation errors in `UserOperations.positions()`, `details(include_positions=True)`, and `details(all=True)`
+
+## [0.18.0] - 2025-12-08
+
+### Added
+
+- Async bulk operations with rate limiting for goals, todos, issues, and meetings
+- Performance benchmarks documentation for async operations
+
+### Fixed
+
+- Corrected API endpoints and field mappings in async operations
+
+## [0.17.0] - 2025-12-07
+
+### Added
+
+- Batch read operation for meetings via `client.meeting.get_many()`
+- Documentation and examples for batch operations
+
+## [0.16.0] - 2025-12-06
+
+### Added
+
+- Claude AI agent configurations and settings for development workflow
+- Specialized subagents for manager-mode workflow
+
+### Changed
+
+- Streamlined CLAUDE.md to focus on architecture and development commands
+
+## [0.15.0] - 2025-12-05
+
+### Added
+
+- Comprehensive VS Code devcontainer support for consistent development environment
+- GitHub CLI integration in devcontainer
+
+## [0.14.0] - 2025-12-04
+
+### Added
+
+- Bulk creation methods for issues, todos, goals, and meetings
+- Comprehensive test suite for bulk operations
+- Bulk operations guide documentation
+
+## [0.13.2] - 2025-12-03
+
+### Fixed
+
+- Adjusted scorecard typing expectations
+
+## [0.13.1] - 2025-12-02
+
+### Added
+
+- Comprehensive ruff linting rules with preview features enabled
+
+### Fixed
+
+- All linting issues identified by new ruff rules
+
+## [0.13.0] - 2025-12-01
+
+### Added
+
+- Full async/await support with `AsyncClient`
+- Async operations for goals, headlines, issues, and scorecard
+- `pytest-asyncio` for async test support
+
+## [0.12.0] - 2025-11-30
+
+### Fixed
+
+- Documentation to match actual SDK implementation
+- GitHub/PyPI URLs in documentation
+- Authentication guide documentation
+- API key retrieval documentation examples
+
+### Removed
+
+- Incorrect licensing information
+
+## [0.11.0] - 2025-11-29
+
+### Added
+
+- Informational badges to README
+
+### Changed
+
+- Simplified API description in documentation
+
+### Removed
+
+- Ruby workflows from GitHub Actions
+
+## [0.10.0] - 2025-11-28
+
+### Fixed
+
+- Documentation and implementation mismatches
+- SDK models to match actual API responses
+- Client API key initialization priority
+
+## [0.9.0] - 2025-11-27
+
+### Added
+
+- MkDocs documentation with Material theme
+- Dynamic version loading from pyproject.toml
+
+### Fixed
+
+- Docstring example formatting for mkdocs
+- Documentation to accurately reflect Pydantic model returns
+
+## [0.8.0] - 2025-11-26
+
+### Changed
+
+- Switched to pyright strict mode for enhanced type safety
+
+### Fixed
+
+- All type and linting issues for strict mode compliance
+
+## [0.7.0] - 2025-11-25
+
+### Added
+
+- Pydantic for enhanced data validation and type safety
+
+### Fixed
+
+- Ruff line length configuration
+- Pyright TypedDict access issues
+
+### Removed
+
+- Examples folder
+
+## [0.6.0] - 2025-11-24
+
+### Added
+
+- Claude AI instructions for development assistance
+
+## [0.5.0] - 2025-11-23
+
+### Added
+
+- Python version specification in pyproject.toml
+
+### Fixed
+
+- Removed tracked files that should be ignored
+
+## [0.4.0] - 2025-11-22
+
+### Fixed
+
+- All ruff check issues
+
+## [0.1.0] - 2025-11-21
+
+### Added
+
+- Initial Python SDK implementation migrated from Ruby
+- Core client with authentication support
+- User operations: get details, search, list all users, get direct reports/positions
+- Meeting operations: CRUD operations, get attendees/issues/todos/metrics
+- Todo operations: CRUD for user or meeting todos
+- Goal (Rock) operations: CRUD, archive/restore functionality
+- Scorecard operations: get current week, list/update scores
+- Issue operations: create, list, solve issues
+- Headline operations: CRUD for meeting headlines
+- Configuration management with multiple API key sources
+- httpx-based HTTP client with bearer token authentication
+
+[Unreleased]: https://github.com/franccesco/bloomy-python/compare/v0.19.0...HEAD
+[0.19.0]: https://github.com/franccesco/bloomy-python/compare/v0.18.0...v0.19.0
+[0.18.0]: https://github.com/franccesco/bloomy-python/compare/v0.17.0...v0.18.0
+[0.17.0]: https://github.com/franccesco/bloomy-python/compare/v0.16.0...v0.17.0
+[0.16.0]: https://github.com/franccesco/bloomy-python/compare/v0.15.0...v0.16.0
+[0.15.0]: https://github.com/franccesco/bloomy-python/compare/v0.14.0...v0.15.0
+[0.14.0]: https://github.com/franccesco/bloomy-python/compare/v0.13.2...v0.14.0
+[0.13.2]: https://github.com/franccesco/bloomy-python/compare/v0.13.1...v0.13.2
+[0.13.1]: https://github.com/franccesco/bloomy-python/compare/v0.13.0...v0.13.1
+[0.13.0]: https://github.com/franccesco/bloomy-python/compare/v0.12.0...v0.13.0
+[0.12.0]: https://github.com/franccesco/bloomy-python/compare/v0.11.0...v0.12.0
+[0.11.0]: https://github.com/franccesco/bloomy-python/compare/v0.10.0...v0.11.0
+[0.10.0]: https://github.com/franccesco/bloomy-python/compare/v0.9.0...v0.10.0
+[0.9.0]: https://github.com/franccesco/bloomy-python/compare/v0.8.0...v0.9.0
+[0.8.0]: https://github.com/franccesco/bloomy-python/compare/v0.7.0...v0.8.0
+[0.7.0]: https://github.com/franccesco/bloomy-python/compare/v0.6.0...v0.7.0
+[0.6.0]: https://github.com/franccesco/bloomy-python/compare/v0.5.0...v0.6.0
+[0.5.0]: https://github.com/franccesco/bloomy-python/compare/v0.4.0...v0.5.0
+[0.4.0]: https://github.com/franccesco/bloomy-python/compare/v0.1.0...v0.4.0
+[0.1.0]: https://github.com/franccesco/bloomy-python/releases/tag/v0.1.0