# \#itk-releases **URL:** https://discourse.itk.org/tag/itk-releases/72.md [Latest](https://discourse.itk.org/latest.md) · [Categories](https://discourse.itk.org/categories.md) · [Tags](https://discourse.itk.org/tags.md) --- ## [ITK 5.4.7 has been released! Expanded Image IO, Faster DTI, and Reliable Builds](https://discourse.itk.org/t/itk-5-4-7-has-been-released-expanded-image-io-faster-dti-and-reliable-builds/7787)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [August 10, 2026, 7:07pm UTC](https://discourse.itk.org/t/itk-5-4-7-has-been-released-expanded-image-io-faster-dti-and-reliable-builds/7787 "2026-08-10T19:07:47Z")
We are pleased to announce the release of ITK 5.4.7! ITK 5.4.7 is a maintenance release focused on image IO capabilities, computational performance, build reliability, and packaging resilience for this cross-platform, o… --- ## [ITK 5.4.6 has been released! Performance, Stability, and Security](https://discourse.itk.org/t/itk-5-4-6-has-been-released-performance-stability-and-security/7756)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [May 1, 2026, 8:41pm UTC](https://discourse.itk.org/t/itk-5-4-6-has-been-released-performance-stability-and-security/7756 "2026-05-01T20:41:18Z")
We are pleased to announce the release of ITK 5.4.6! ITK 5.4.6 is a maintenance release focused on performance improvements, security fixes, and platform compatibility for this cross-platform, open-source toolkit suppor… --- ## [ITK 6.0 Beta 2 has been released!](https://discourse.itk.org/t/itk-6-0-beta-2-has-been-released/7738)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 1\ **Last updated:** [March 25, 2026, 4:11pm UTC](https://discourse.itk.org/t/itk-6-0-beta-2-has-been-released/7738 "2026-03-25T16:11:40Z")
We are excited to announce the second beta release of ITK 6.0! This release introduces modern CMake module targets — a major build system modernization that makes it easier than ever to link ITK into your projects. Along… --- ## [ITK 5.4.5 has been released! Onboarding AI Agents](https://discourse.itk.org/t/itk-5-4-5-has-been-released-onboarding-ai-agents/7670)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [November 24, 2025, 9:00pm UTC](https://discourse.itk.org/t/itk-5-4-5-has-been-released-onboarding-ai-agents/7670 "2025-11-24T21:00:32Z")
We are pleased to announce the release of ITK 5.4.5! ITK 5.4.5 is a maintenance release focused on critical bug fixes, improved documentation, and platform support, while introducing AI agent onboarding to assist in pro… --- ## [ITK 6.0 Beta 1 has been released!](https://discourse.itk.org/t/itk-6-0-beta-1-has-been-released/7651)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [October 29, 2025, 9:10pm UTC](https://discourse.itk.org/t/itk-6-0-beta-1-has-been-released/7651 "2025-10-29T21:10:36Z")
We are excited to announce the first beta release of ITK 6.0! This major version update marks a significant leap forward in the toolkit’s evolution, focusing on code modernization, cleanup, and enhanced performance. As a… --- ## [ITK 5.4.4 has been released!](https://discourse.itk.org/t/itk-5-4-4-has-been-released/7565)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 4\ **Last updated:** [September 10, 2025, 3:33pm UTC](https://discourse.itk.org/t/itk-5-4-4-has-been-released/7565 "2025-09-10T15:33:06Z")
We are pleased to announce the release of ITK 5.4.4, a maintenance update delivering critical improvements while maintaining API stability. This is latest maintenance update for this cross-platform, open-source toolkit s… --- ## [ITK 5.4.3 has been released!](https://discourse.itk.org/t/itk-5-4-3-has-been-released/7489)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [April 2, 2025, 3:27pm UTC](https://discourse.itk.org/t/itk-5-4-3-has-been-released/7489 "2025-04-02T15:27:07Z")
We are pleased to announce the release of ITK 5.4.3, the latest maintenance update for this cross-platform, open-source toolkit supporting N-dimensional scientific image analysis with spatially-aware algorithms. :tada: … --- ## [ITK 5.4.2 has been released!](https://discourse.itk.org/t/itk-5-4-2-has-been-released/7430)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [February 13, 2025, 8:06pm UTC](https://discourse.itk.org/t/itk-5-4-2-has-been-released/7430 "2025-02-13T20:06:23Z")
We are pleased to announce the release of ITK 5.4.2, the latest maintenance update for this cross-platform, open-source toolkit supporting N-dimensional scientific image analysis with spatially-aware algorithms. :tada: … --- ## [ITK 5.4.0 has been released!](https://discourse.itk.org/t/itk-5-4-0-has-been-released/7386)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [January 20, 2025, 4:12am UTC](https://discourse.itk.org/t/itk-5-4-0-has-been-released/7386 "2025-01-20T04:12:16Z")
ITK 5.4.0 Release Notes: ReadTheDocs Documentation We are happy to announce the Insight Toolkit (ITK) 5.4.0 is available for download! :tada: :clinking\_beer\_mugs: :partying\_face: ITK is an open-source, cross-platform too… --- ## [error LNK2005: \_\_ ucrt \_ int \_ to \_ float has been defined in itktiff-6.0.lib (tif\_ aux.obj)](https://discourse.itk.org/t/error-lnk2005-ucrt-int-to-float-has-been-defined-in-itktiff-6-0-lib-tif-aux-obj/7073)
**Author:** [@xiaohua](https://discourse.itk.org/u/xiaohua)\ **Replies:** 6\ **Last updated:** [July 19, 2024, 12:56am UTC](https://discourse.itk.org/t/error-lnk2005-ucrt-int-to-float-has-been-defined-in-itktiff-6-0-lib-tif-aux-obj/7073 "2024-07-19T00:56:57Z")
error LNK2005: \_\_ ucrt \_ int \_ to \_ float has been defined in itktiff-6.0.lib (tif\_ aux.obj) --- ## [My roten recipe to build ITK 5.4rc04 with ITKElastix and other modules with Python in Linux](https://discourse.itk.org/t/my-roten-recipe-to-build-itk-5-4rc04-with-itkelastix-and-other-modules-with-python-in-linux/6663)
**Author:** [@edgar](https://discourse.itk.org/u/edgar)\ **Replies:** 0\ **Last updated:** [May 25, 2024, 2:20pm UTC](https://discourse.itk.org/t/my-roten-recipe-to-build-itk-5-4rc04-with-itkelastix-and-other-modules-with-python-in-linux/6663 "2024-05-25T14:20:58Z")
Hi. I just want to share how I was able to build ITK with some modules, including ITKElastix with Python 3.12. The attachment has the instructions, versions of source code, versions of running software and compilation lo… --- ## [ITK 5.4 Release Candidate 4: ALL THE DICOMs](https://discourse.itk.org/t/itk-5-4-release-candidate-4-all-the-dicoms/6592)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [April 24, 2024, 4:50pm UTC](https://discourse.itk.org/t/itk-5-4-release-candidate-4-all-the-dicoms/6592 "2024-04-24T16:50:20Z")
We are happy to announce the Insight Toolkit (ITK) 5.4 Release Candidate 4 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and r… --- ## [how to build ITK 5.3.0 with Python bindings in Linux?](https://discourse.itk.org/t/how-to-build-itk-5-3-0-with-python-bindings-in-linux/6544)
**Author:** [@edgar](https://discourse.itk.org/u/edgar)\ **Replies:** 9\ **Last updated:** [April 8, 2024, 5:51pm UTC](https://discourse.itk.org/t/how-to-build-itk-5-3-0-with-python-bindings-in-linux/6544 "2024-04-08T17:51:18Z")
Hello. I would like to know if someone can help me to build ITK 5.3.0 with Python bindings in Linux. The idea is to have a reproducible build, which implies that downloading the binary packages is not an option. Thank yo… --- ## [ITK 5.4 Release Candidate 2 available for testing](https://discourse.itk.org/t/itk-5-4-release-candidate-2-available-for-testing/6404)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [January 22, 2024, 9:20pm UTC](https://discourse.itk.org/t/itk-5-4-release-candidate-2-available-for-testing/6404 "2024-01-22T21:20:45Z")
ITK 5.4 Release Candidate 2: Web3 Testing Data We are happy to announce the Insight Toolkit (ITK) 5.4 Release Candidate 2 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional s… --- ## [ITK 5.4 Release Candidate 1 available for testing](https://discourse.itk.org/t/itk-5-4-release-candidate-1-available-for-testing/6107)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 2\ **Last updated:** [January 22, 2024, 9:00pm UTC](https://discourse.itk.org/t/itk-5-4-release-candidate-1-available-for-testing/6107 "2024-01-22T21:00:04Z")
ITK 5.4 Release Candidate 1: C++17 We are happy to announce the Insight Toolkit (ITK) 5.4 Release Candidate 1 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scientific im… --- ## ['CurvatureRegistrationFilter': is not a member of 'itk'.](https://discourse.itk.org/t/curvatureregistrationfilter-is-not-a-member-of-itk/5190)
**Author:** [@tnayak](https://discourse.itk.org/u/tnayak)\ **Replies:** 4\ **Last updated:** [May 24, 2023, 1:48am UTC](https://discourse.itk.org/t/curvatureregistrationfilter-is-not-a-member-of-itk/5190 "2023-05-24T01:48:18Z")
Hi all, I am currently try to implement the DeformableRegistration10 example, in that I am getting the following error C2039 ‘CurvatureRegistrationFilter’: is not a member of ‘itk’. Anyone have any idea how to fix this … --- ## [Any example or implement for image registration with cuda](https://discourse.itk.org/t/any-example-or-implement-for-image-registration-with-cuda/5107)
**Author:** [@busyyang](https://discourse.itk.org/u/busyyang)\ **Replies:** 3\ **Last updated:** [January 17, 2023, 9:30am UTC](https://discourse.itk.org/t/any-example-or-implement-for-image-registration-with-cuda/5107 "2023-01-17T09:30:10Z")
Hi all, we have implemented a demo for 2D/3D image registration with help by this article. But it cost too much time when registration even over 5 minites. We’d like to speed up the process. And cuda may help it, but we… --- ## [ITK 5.3.0 has been released!](https://discourse.itk.org/t/itk-5-3-0-has-been-released/5578)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [December 20, 2022, 6:29pm UTC](https://discourse.itk.org/t/itk-5-3-0-has-been-released/5578 "2022-12-20T18:29:28Z")
We are exceedingly pleased to announce the Insight Toolkit (ITK) 5.3.0 is available for download! :tada: :santa: :gift: ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segment… --- ## [itk 5.3rc4.post3: Failure to load libtbb library (observed on macOS 10.13)](https://discourse.itk.org/t/itk-5-3rc4-post3-failure-to-load-libtbb-library-observed-on-macos-10-13/5405)
**Author:** [@jcfr](https://discourse.itk.org/u/jcfr)\ **Replies:** 3\ **Last updated:** [November 14, 2022, 1:55pm UTC](https://discourse.itk.org/t/itk-5-3rc4-post3-failure-to-load-libtbb-library-observed-on-macos-10-13/5405 "2022-11-14T13:55:47Z")
To follow up on ITK 5.3 Release Candidate 4 available for testing, I may have identified few issues found with itk 5.3rc4.post3 specific to macOS that are related to the bundling of libtbb.12.3.dylib. Context While the … --- ## [ITK 5.3 Release Candidate 2 available for testing](https://discourse.itk.org/t/itk-5-3-release-candidate-2-available-for-testing/4573)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 6\ **Last updated:** [November 7, 2022, 5:02pm UTC](https://discourse.itk.org/t/itk-5-3-release-candidate-2-available-for-testing/4573 "2022-11-07T17:02:45Z")
ITK 5.3 Release Candidate 2 Release Notes We are happy to announce the Insight Toolkit (ITK) 5.3 Release Candidate 2 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scient… --- ## [itk::imageSeriesReader return nullptr](https://discourse.itk.org/t/itk-imageseriesreader-return-nullptr/5367)
**Author:** [@wulicheng](https://discourse.itk.org/u/wulicheng)\ **Replies:** 2\ **Last updated:** [September 27, 2022, 1:55pm UTC](https://discourse.itk.org/t/itk-imageseriesreader-return-nullptr/5367 "2022-09-27T13:55:54Z")
using InputImageTypeCuda = itk::CudaImage\; using ReaderTypeCuda = itk::ImageSeriesReader; ReaderTypeCuda::Pointer reader = ReaderTypeCuda::New(); ReaderTypeCuda::New() failed it return nullptr, anyone know w… --- ## [ITK 5.3 Release Candidate 4 available for testing](https://discourse.itk.org/t/itk-5-3-release-candidate-4-available-for-testing/5290)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [August 23, 2022, 7:11pm UTC](https://discourse.itk.org/t/itk-5-3-release-candidate-4-available-for-testing/5290 "2022-08-23T19:11:38Z")
We are happy to announce the Insight Toolkit (ITK) 5.3 Release Candidate 4 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and r… --- ## [Building vtkITK Lib with Emscripten](https://discourse.itk.org/t/building-vtkitk-lib-with-emscripten/3908)
**Author:** [@Andrzej\_Marciniak](https://discourse.itk.org/u/Andrzej_Marciniak)\ **Replies:** 5\ **Last updated:** [July 21, 2022, 9:55am UTC](https://discourse.itk.org/t/building-vtkitk-lib-with-emscripten/3908 "2022-07-21T09:55:07Z")
I just read @matt.mccormick answer to @prashanth.dumpuri about building with Emscripten for beginners (https://discourse.itk.org/t/building-itk-with-emscripten/2919/5) and it helped me a lot. I am using insighttoolkit… --- ## [ITK 5.3.0 Release Candidate 3 available for testing](https://discourse.itk.org/t/itk-5-3-0-release-candidate-3-available-for-testing/4989)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [May 13, 2022, 4:48pm UTC](https://discourse.itk.org/t/itk-5-3-0-release-candidate-3-available-for-testing/4989 "2022-05-13T16:48:55Z")
ITK 5.3 Release Candidate 3 Release Notes We are happy to announce the Insight Toolkit (ITK) 5.3 Release Candidate 3 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scient… --- ## [Installation from Git sources (master, 5.3rc03) with double vector support](https://discourse.itk.org/t/installation-from-git-sources-master-5-3rc03-with-double-vector-support/4957)
**Author:** [@edgar](https://discourse.itk.org/u/edgar)\ **Replies:** 6\ **Last updated:** [May 7, 2022, 10:56am UTC](https://discourse.itk.org/t/installation-from-git-sources-master-5-3rc03-with-double-vector-support/4957 "2022-05-07T10:56:32Z")
Installation from Git sources (master, 5.3rc03) with double vector support Dear developers, I am trying to get a deformable transformation. I am now using Arch (see below) and “regular” compilation flags (as provided by… --- ## [BinaryPruningImageFilter](https://discourse.itk.org/t/binarypruningimagefilter/4924)
**Author:** [@assia855](https://discourse.itk.org/u/assia855)\ **Replies:** 4\ **Last updated:** [April 19, 2022, 1:40pm UTC](https://discourse.itk.org/t/binarypruningimagefilter/4924 "2022-04-19T13:40:05Z")
Hello, I want to apply this function on my data, but I couldn’t understand the documentation and there’s no example. I would like an example on how can I apply it. Thanks in advance. --- ## [ITK Install issues on VS2022](https://discourse.itk.org/t/itk-install-issues-on-vs2022/4821)
**Author:** [@xyz](https://discourse.itk.org/u/xyz)\ **Replies:** 13\ **Last updated:** [February 24, 2022, 9:43am UTC](https://discourse.itk.org/t/itk-install-issues-on-vs2022/4821 "2022-02-24T09:43:28Z")
Dear all, I was trying to install ITK for transforming the .TRE files from ITKTubeTK - Bullitt - Healthy MR Database to common image format for phantom for several days. My environment is python 3.10, ITK 5.2.1/ITK 5.3r… --- ## [create coronal images for different slice thickness of axial image](https://discourse.itk.org/t/create-coronal-images-for-different-slice-thickness-of-axial-image/4658)
**Author:** [@gayathri](https://discourse.itk.org/u/gayathri)\ **Replies:** 8\ **Last updated:** [December 16, 2021, 2:20pm UTC](https://discourse.itk.org/t/create-coronal-images-for-different-slice-thickness-of-axial-image/4658 "2021-12-16T14:20:52Z")
How to create coronal and sagittal images for different slice thickness --- ## [ITK 5.3 Release Candidate 1 available for testing](https://discourse.itk.org/t/itk-5-3-release-candidate-1-available-for-testing/4421)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [September 14, 2021, 10:16pm UTC](https://discourse.itk.org/t/itk-5-3-release-candidate-1-available-for-testing/4421 "2021-09-14T22:16:18Z")
We are happy to announce the Insight Toolkit (ITK) 5.3 Release Candidate 1 is available for testing! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and r… --- ## [ITK 5.2.1 has been released!](https://discourse.itk.org/t/itk-5-2-1-has-been-released/4336)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [August 17, 2021, 5:21pm UTC](https://discourse.itk.org/t/itk-5-2-1-has-been-released/4336 "2021-08-17T17:21:54Z")
ITK 5.2.1 Release Notes We are happy to announce the Insight Toolkit (ITK) 5.2.1! :tada: Python Packages Install ITK Python packages with: pip install --upgrade itk Guide and Textbook InsightSoftwareGuide-Book1-5.2… [Next page](https://discourse.itk.org/tag/itk-releases/72.md?match_all_tags=true&page=1&tags%5B%5D=itk-releases)