Update changelog

CHANGELOG.md

@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added a new CMake option `IDYNTREE_COMPILES_TOOLS` to disable compilation of iDynTree tools.
 - Added a `KinDynComputations::getCentroidalTotalMomentumJacobian()` method (https://github.com/robotology/idyntree/pull/706)
 - iDynTree now supports build compiled as a shared library also on Windows.
+- When used in Python, new iDynTree objects can be constructed from generic iterable objects and NumPy arrays (`*.FromPython`),
+  and existing objects can be converted to NumPy arrays (`*.toNumPy`) (https://github.com/robotology/idyntree/pull/726).
 
 ### Fixed
 - Fixed bug in `yarprobotstatepublisher` that caused segmentation fault each time an unknown joint name was read from the input joint states topic (https://github.com/robotology/idyntree/pull/719)
@@ -19,12 +21,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - By default  iDynTree is compiled as a shared library also on Windows. The `BUILD_SHARED_LIBS` CMake variable can be used to
   control if iDynTree is built as a shared or a static library.
+- The Python method `*.fromPyList` is replaced by `*.FromPython` (https://github.com/robotology/idyntree/pull/726).
 
 ### Removed 
 - Remove the CMake option IDYNTREE_USES_KDL and all the classes available when enabling it. They were deprecated in iDynTree 1.0 .
 - Remove the semantics related classes. They were deprecated in iDynTree 1.0 .
 - Remove unnecessary warning messages from [ModelSensorsTransformers.cpp](https://github.com/robotology/idyntree/blob/master/src/sensors/src/ModelSensorsTransformers.cpp) and [URDFDocument.cpp](https://github.com/robotology/idyntree/blob/master/src/model_io/urdf/src/URDFDocument.cpp) (see [PR 718](https://github.com/robotology/idyntree/pull/718))
-
+- Python2 will not be maintained past 2020 and its support has been dropped (https://github.com/robotology/idyntree/pull/726).
+- Remove the need to call `iDynTree.init_helpers()` and `iDynTree.init_numpy_helpers()` from Python (https://github.com/robotology/idyntree/pull/726).
 
 ## [Unreleased]