# SimpleITK 2.2 Release Candidate 2

**URL:** https://discourse.itk.org/t/simpleitk-2-2-release-candidate-2/4789
**Category:** Announcements
**Tags:** python, csharp, r, java, simpleitk
**Created:** [February 7, 2022, 7:57pm UTC](https://discourse.itk.org/t/simpleitk-2-2-release-candidate-2/4789 "2022-02-07T19:57:26Z")
**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: [February 7, 2022, 7:57pm UTC](https://discourse.itk.org/t/simpleitk-2-2-release-candidate-2/4789/1 "2022-02-07T19:57:27Z")

</div>

# Announcement

Tagged on 2/2/2022 we are happy to announce SimpleITK 2.2 Release Candidate 2!

Users and developers are encouraged to test the RC before the final release and report issues, bugs, and any compatibility problems.

## Installing SimpleITK

Complete instructions on getting started with SimpleITK including downloading binaries or building SimpleITK can be found on the SimpleITK [Read the Docs web page](https://simpleitk.readthedocs.io/en/master/index.html).

### Python Binary Downloads

- Python binary wheels are available for download. It is important to have the latest version of pip for correct wheel compatibility and installation. To install the latest SimpleITK package from GitHub releases:

```auto
python -m pip install --upgrade pip
python -m pip install --pre SimpleITK --find-links https://github.com/SimpleITK/SimpleITK/releases/tag/v2.2rc2

```

### Anaconda Binary Downloads

Conda packages are available from Anaconda Cloud on the `SimpleITK` channel. These can be installed with:

```auto
conda install -c simpleitk/label/dev simpleitk

```

# Release Notes

## Compatibility Changes

Require SimpleITK\_INT64\_PIXELIDS for 64-bit builds.  
The Python ReadTransform method now returns a downcasted transform.

## New Features

Update to ITK v5.3rc3  
Improved Python packaging type information (PEP 561).  
Improved types for manual Python procedural methods: Resample, GetArrayFromImage, GetImageFromArray, GetArrayViewFromImage, ReadImage, WriteImage, SmoothingRecursiveGaussian, DiscreteGaussian.

## Bug Fixes

Additional baseline test image for AArch64/ARM64 systems.  
Fix test failure when system has more than 127 processors.  
Remove failing test with 32-bit pixel and JPEG file.