Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

0.1.0.0 - 2025-07-07

Added

• Initial release of gym-hs
• Basic Gymnasium environment bindings
• Type-safe API for actions and observations
• Subprocess-based Python interoperability
• Support for environment creation, reset, step, and render operations
• Comprehensive error handling with GymError types
• Automatic resource management and cleanup
• JSON-based communication protocol
• Support for all standard Gymnasium environments (CartPole, MountainCar, etc.)
• Complete test suite with hspec
• Example application demonstrating usage
• Documentation and README

Core Features

• makeEnv - Create Gymnasium environments
• reset - Reset environments to initial state
• step - Take actions in environments
• render - Render environment visualization
• closeEnv - Clean up environment resources

Dependencies

• base >= 4.7 && < 5
• process >= 1.6
• aeson >= 2.0
• bytestring >= 0.10
• text >= 1.2
• vector >= 0.12
• containers >= 0.6
• unordered-containers >= 0.2
• scientific >= 0.3

Requirements

• GHC 9.2+
• Python 3.8+
• Gymnasium Python library (pip install gymnasium)