adding CHANGELOG

Author: claude

src/mcp-lambda-handler/CHANGELOG.md

@@ -0,0 +1,53 @@
+# 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/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+### Added
+
+- GitHub Actions workflows to publish to PyPI as `aws-lambda-mcp-server` and `lambda-mcp-server`
+- Expanded README with examples for tools, resources, session management, and custom session backends
+
+## [0.1.14] - 2026-03-06
+
+### Added
+
+- Streamlined boto3 user agent tracking (`md/awslabs#mcp#mcp-lambda-handler#<version>`)
+
+### Fixed
+
+- `Optional[T]` type hints now correctly resolve to the inner type JSON Schema instead of defaulting to `string`
+
+## [0.1.13] - 2026-01-09
+
+### Fixed
+
+- Upgraded urllib3 to resolve security advisory GHSA-38jv-5279-wg99
+
+## [0.1.12] - 2025-10-24
+
+### Fixed
+
+- Tool names are no longer converted from `snake_case` to camelCase — the original function name is preserved
+
+## [0.1.11] - 2025-07-31
+
+### Added
+
+- Resource support: `resources/list` and `resources/read` MCP methods
+- `Resource`, `FileResource`, and `StaticResource` types
+- `@mcp.resource()` decorator and `mcp.add_resource()` for registering resource providers
+
+## [0.1.10] - 2025-07-01
+
+### Added
+
+- `ImageContent` support — tools that return `bytes` are automatically encoded as base64 image content blocks with MIME type auto-detection (JPEG, PNG, GIF, WebP)
+
+### Fixed
+
+- Notification requests (no `id` field) now correctly return HTTP 202 instead of an error