• Now your Env and Wrapper subclasses should define step, reset, render, close, seed rather than underscored method names.
• Removed the board_game, debugging, safety, parameter_tuning environments since they're not being maintained by us at OpenAI. We encourage authors and users to create new repositories for these environments.
• Changed MultiDiscrete action space to range from [0, ..., n-1] rather than [a, ..., b-1].
• No more render(close=True), use env-specific methods to close the rendering.
• Removed scoreboard directory, since site doesn't exist anymore.
• Moved gym/monitoring to gym/wrappers/monitoring
• Add dtype to Space.
• Not using python's built-in module anymore, using gym.logger