Merge remote-tracking branch 'origin/master' into r7-merge-to-master

com.unity.ml-agents/CHANGELOG.md

 and this project adheres to
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Major Changes
+#### com.unity.ml-agents (C#)
+#### ml-agents / ml-agents-envs / gym-unity (Python)
+
+### Minor Changes
+#### com.unity.ml-agents (C#)
+#### ml-agents / ml-agents-envs / gym-unity (Python)
+
+### Bug Fixes
+#### com.unity.ml-agents (C#)
+#### ml-agents / ml-agents-envs / gym-unity (Python)
+
 
 ## [1.4.0-preview] - 2020-09-16
 ### Major Changes

com.unity.ml-agents/Runtime/Communicator/GrpcExtensions.cs

         #endregion
 
         #region Observations
-        public static ObservationProto ToProto(this Observation obs)
-        {
-            ObservationProto obsProto = null;
-
-            if (obs.CompressedData != null)
-            {
-                // Make sure that uncompressed data is empty
-                if (obs.FloatData.Count != 0)
-                {
-                    Debug.LogWarning("Observation has both compressed and uncompressed data set. Using compressed.");
-                }
-
-                obsProto = new ObservationProto
-                {
-                    CompressedData = ByteString.CopyFrom(obs.CompressedData),
-                    CompressionType = (CompressionTypeProto)obs.CompressionType,
-                };
-            }
-            else
-            {
-                var floatDataProto = new ObservationProto.Types.FloatData
-                {
-                    Data = { obs.FloatData },
-                };
-
-                obsProto = new ObservationProto
-                {
-                    FloatData = floatDataProto,
-                    CompressionType = (CompressionTypeProto)obs.CompressionType,
-                };
-            }
-
-            obsProto.Shape.AddRange(obs.Shape);
-            return obsProto;
-        }
-
         /// <summary>
         /// Static flag to make sure that we only fire the warning once.
         /// </summary>

gym-unity/gym_unity/__init__.py

 # Version of the library that will be used to upload to pypi
-__version__ = "0.20.0"
+__version__ = "0.21.0.dev0"
-__release_tag__ = "release_7"
+__release_tag__ = None

ml-agents-envs/mlagents_envs/__init__.py

 # Version of the library that will be used to upload to pypi
-__version__ = "0.20.0"
+__version__ = "0.21.0.dev0"
-__release_tag__ = "release_7"
+__release_tag__ = None

ml-agents/mlagents/trainers/__init__.py

 # Version of the library that will be used to upload to pypi
-__version__ = "0.20.0"
+__version__ = "0.21.0.dev0"
-__release_tag__ = "release_7"
+__release_tag__ = None

protobuf-definitions/README.md

 
 `pip install grpcio-tools==1.11.1`
 
-`pip install mypy-protobuf`
+`pip install mypy-protobuf==1.16.0`
 
 
 #### On Windows

com.unity.ml-agents/Runtime/Sensors/Observation.cs.meta

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-guid: e9292f3e3b1864e0fbe1e9bb9a29d4ed
-MonoImporter:
-  externalObjects: {}
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com.unity.ml-agents/Runtime/Sensors/Observation.cs

-using System;
-
-namespace Unity.MLAgents.Sensors
-{
-    internal struct Observation
-    {
-        /// <summary>
-        /// The compressed sensor data. Assumed to be non-null if CompressionType != CompressionType.None
-        /// </summary>
-        public byte[] CompressedData;
-
-        /// <summary>
-        /// Uncompressed sensor data. Assumed to be non-empty if CompressionType == CompressionType.None
-        /// </summary>
-        public ArraySegment<float> FloatData;
-
-        /// <summary>
-        /// The format of the compressed data
-        /// </summary>
-        public SensorCompressionType CompressionType;
-
-        /// <summary>
-        /// The uncompressed dimensions of the data.
-        /// E.g. for RGB visual observations, this will be {Height, Width, 3}
-        /// </summary>
-        public int[] Shape;
-    }
-}