# SimpleITK 1.2 Release Candidate 1

**URL:** https://discourse.itk.org/t/simpleitk-1-2-release-candidate-1/1480
**Category:** Announcements
**Tags:** python, csharp, r, java, simpleitk
**Created:** [December 14, 2018, 9:40pm UTC](https://discourse.itk.org/t/simpleitk-1-2-release-candidate-1/1480 "2018-12-14T21:40:33Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![blowekamp](https://discourse.itk.org/user_avatar/discourse.itk.org/blowekamp/32/79_2.png) [@blowekamp](https://discourse.itk.org/u/blowekamp)
#### Post date: [December 14, 2018, 9:40pm UTC](https://discourse.itk.org/t/simpleitk-1-2-release-candidate-1/1480/1 "2018-12-14T21:40:33Z")

</div>

# Announcement

We are pleased to announce SimpleITK 1.2 Release candidate 1.

## Release Notes

- Improvements
  - New look for ReadTheDocs, along with more examples and documentation. ([http://simpleitk.readthedocs.io/en/master/](http://simpleitk.readthedocs.io/en/master/))
  - Support for stream reading regions from files. The `ImageFileReader` adds the option to specify a image region to extract while reading from disk. ([https://simpleitk.readthedocs.io/en/master/Examples/AdvancedImageReading/Documentation.html](https://simpleitk.readthedocs.io/en/master/Examples/AdvancedImageReading/Documentation.html))
  - Option to specify the ITK `ImageIO` used in the `ImageFileReader class` or `ReadImage` procedure. ([https://simpleitk.readthedocs.io/en/master/Examples/ImageIOSelection/Documentation.html](https://simpleitk.readthedocs.io/en/master/Examples/ImageIOSelection/Documentation.html))
  - Multi-resolution BSpline registration by adapting the `BSplineTransform` resolution in the `ImageRegistrationMethod`. ([https://simpleitk.readthedocs.io/en/master/Examples/ImageRegistrationMethodBSpline3/Documentation.html](https://simpleitk.readthedocs.io/en/master/Examples/ImageRegistrationMethodBSpline3/Documentation.html))
  - Added `BSplineDecompositionImageFilter` , and new `BSplineTransform` initialization from coefficient images.
  - Added `ImageRegistrationMethod` method `GetMetricSamplingPercentage` to get the number of samples used after each iteration.
  - Wrapping of the SLICImageFilter ( [http://hdl.handle.net/10380/3596](http://hdl.handle.net/10380/3596) ).
  - New `ImageViewer` class to support state-full parameters while providing the behavior supported by the `Show` procedure.
  - Added support for multi-component images to `ClampImageFilter`, `MeanProjectionImageFilter`, `SumProjectionImageFilter`, and the `TileImageFilter`.
  - Improvements to the R interface and packaging.
  - Fix 4D Image support in the Python `GetArrayFromImage` and `GetArrayViewFromImage` procedures.
  - Added Transform `FlattenTransform` method, to combine nested composite transforms.
  - ITKv5 compatibility enables SimpleITK to be compiled against ITKv5 betas.
  - The default and binaries are built against the proven ITK 4.13.1 release branch. Comprehensive SimpleITK testing has lead to improvements in upstream ITK. ([https://github.com/InsightSoftwareConsortium/ITK/releases/tag/v4.13.1](https://github.com/InsightSoftwareConsortium/ITK/releases/tag/v4.13.1))
  - Miscellaneous build and documentation fixes.

## Python Binary Downloads

- Many binary Python wheels are available for download and testing. It is important to have the latest pip version to ensure correct wheel compatibility. To install the SimpleITK package:

```auto
pip install --upgrade pip
pip install --pre -f https://github.com/SimpleITK/SimpleITK/releases/tag/v1.2rc1 SimpleITK
```