# SimpleITK Release v1.0rc1

- Key Improvements:
  - Improved Python data bridge
    - New Python method `GetArrayViewFromImage` provides copy free read-only access
    - Updated Python data structures to use `memory view` objects
  - Building SimpleITK wrappers:
    - R devtools based installer (https://github.com/SimpleITK/SimpleITKRInstaller).
    - Python: scripts for building wheels (https://github.com/SimpleITK/SimpleITKPythonPackage) and a Conda recipe (https://github.com/SimpleITK/SimpleITKCondaRecipe).
  - Support use of virtual image domain in the `ImageRegistrationMethod`.
  - OnePlusOneOptimizer added to registration framework.
  - Improved support for R: propogating C++ exceptions into R, additional R tests.
  - Additional tests for Java.
  - Python and R notebooks repository illustrating the basics and more advanced functionality of SimpleITK (https://github.com/InsightSoftwareConsortium/SimpleITK-Notebooks).
  - Added continous integration via CircleCI.
  - Updated version and improved integration of Google Test.
  - Updated ITK version to 4.11
  - Updated minimal required CMake version to 3.0, and numerous CMake changes to support various build configurations.
  - Updated to usage of SWIG 3.0.11 ( using the latest SIWG is strongly recommended for R )
  - Reorganized examples directory into example based sub-directories with multiple languages
  - Improvements to documentation transmogrification scripts
  - Many bug fixes and improvement to the build system!
- API changes:
  - R methods which previously unnecessarily returned self return void.
  - New method `Image::GetNumberOfPixels`
  - New method `LabelMapContourOverlayImageFilter::SetColormap`
  - New method `LabelMapToRGBImageFilter::SetColormap`
  - New method `ImageRegistrationMethod::SetVirtualDomain`
  - New method `ImageRegistrationMethod::SetVirtualDomainFromImage`
  - New seed parameter to `ImageRegistrationMethod::AddMetricSamplingSeed` method
  - `CastImageFilter::SetOutputPixelType` method no longer accepts the pixel ID by value, uses only enumerated type.