New Levels:

1. Psychlab.

   1. contributed/psychlab/memory_suite_01/explore_goal_locations_extrapolate
   2. contributed/psychlab/memory_suite_01/explore_goal_locations_holdout_extrapolate
   3. contributed/psychlab/memory_suite_01/explore_goal_locations_holdout_interpolate
   4. contributed/psychlab/memory_suite_01/explore_goal_locations_holdout_large
   5. contributed/psychlab/memory_suite_01/explore_goal_locations_holdout_small
   6. contributed/psychlab/memory_suite_01/explore_goal_locations_interpolate
   7. contributed/psychlab/memory_suite_01/explore_goal_locations_train_large
   8. contributed/psychlab/memory_suite_01/explore_goal_locations_train_small

2. Language binding tasks.

   1. contributed/fast_mapping/fast_mapping
   2. contributed/fast_mapping/slow_mapping

New Features:

1. A property system has been added that allows dynamic querying and modifying of environment state. Level scripts can register and consume custom properties.
2. A new Python module, dmenv_module, is provided that exposes the DeepMind .