Add in changelog to explain patch applied for v1.0.1.

Author: hunter547

.gitignore

@@ -21,6 +21,7 @@ coverage/
 *.swo
 *.md
 !README.md
+!CHANGELOG.md
 
 # OS
 .DS_Store

CHANGELOG.md

@@ -0,0 +1,23 @@
+# 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).
+
+## [1.0.1] - 2025-01-19
+
+### Fixed
+
+- Fixed CommonJS (.cjs) exports not being included in the published package. The tsup build configuration now correctly outputs `index.cjs` for CommonJS and `index.js` for ESM, matching the package.json exports.
+
+## [1.0.0] - 2025-01-17
+
+### Added
+
+- Initial release
+- Full REST API coverage for TopstepX trading API
+- Real-time WebSocket data feeds via Microsoft SignalR
+- Automatic token management with refresh
+- Complete TypeScript type definitions
+- Dual ESM/CommonJS support

package.json

@@ -32,7 +32,8 @@
   "files": [
     "dist",
     "README.md",
-    "LICENSE"
+    "LICENSE",
+    "CHANGELOG.md"
   ],
   "sideEffects": false,
   "engines": {