diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..d34081f1
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,35 @@
+# 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).
+
+## [1.0.0] - 2026-02-01
+
+### Added
+- **Skill Installer Service**: Install bundled Claude Code skills (commit, branch, push, pull, stash) to user or project scope
+- **TileListView Component**: Reusable card-style list widget with consistent styling
+- **TODO.md Integration**: Parse and display project TODO.md files in the TODOs panel
+- **File Watcher**: Real-time file system monitoring with reactive updates
+- **Git Graph View**: Visual commit graph in sidebar
+- **Branch Status Widget**: Enhanced branch display with remote tracking info
+- **Theme System**: 22 built-in themes including Summer Night (default)
+- **Alt-key Shortcuts**: VSCode-familiar keybindings that don't interfere with input fields
+
+### Changed
+- Restructured project with clear separation of controllers, services, and widgets
+- Improved panel architecture with state preservation on hide/show
+- Enhanced git integration with better status display
+
+### Fixed
+- Test fixtures updated for new widget architecture
+
+## [0.1.0] - 2026-01-15
+
+### Added
+- Initial project structure and TUI framework
+- Basic panel layout (sidebar, workspace, context)
+- Claude Code integration as primary workspace
+- Pydantic models for data validation
+- pytest test infrastructure
diff --git a/clide/__init__.py b/clide/__init__.py
index a82584e5..204e5190 100644
--- a/clide/__init__.py
+++ b/clide/__init__.py
@@ -1,3 +1,3 @@
 """Clide - A TUI CLI IDE for Claude Code CLI."""
 
-__version__ = "0.1.0"
+__version__ = "1.0.0"
diff --git a/pyproject.toml b/pyproject.toml
index 5534c218..7f63c392 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "clide"
-version = "0.1.0"
+version = "1.0.0"
 description = "A TUI CLI IDE for Claude Code CLI"
 readme = "README.md"
 requires-python = ">=3.12"