# ITK5 released, are we ready to start using it?

**URL:** https://discourse.slicer.org/t/itk5-released-are-we-ready-to-start-using-it/6985
**Category:** Development
**Tags:** itk
**Created:** [May 31, 2019, 7:31pm UTC](https://discourse.slicer.org/t/itk5-released-are-we-ready-to-start-using-it/6985 "2019-05-31T19:31:39Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [May 31, 2019, 7:31pm UTC](https://discourse.slicer.org/t/itk5-released-are-we-ready-to-start-using-it/6985/1 "2019-05-31T19:31:40Z")

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Now that ITK5 is officially out, are there any roadblocks to updating slicer?

(and congrats to the ITK team! 🎺 )

> **[ITK 5.0.0 has been released!](https://discourse.itk.org/t/itk-5-0-0-has-been-released/1931)**
>
> We are happy to announce the Insight Toolkit (ITK) 5.0.0! 🎉 ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and registration. ITK 5.0.0 is a major release that features an incredible...

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### Author: ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)
#### Post date: [May 31, 2019, 7:34pm UTC](https://discourse.slicer.org/t/itk5-released-are-we-ready-to-start-using-it/6985/2 "2019-05-31T19:34:27Z")

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The good news is that ITK community has been very proactive and helped us transition to ITK5, we are already using 5.0.rc01.

> <https://github.com/Slicer/Slicer/blob/87105dfbfa055518bf724a880969d423a273b2c1/SuperBuild/External_ITK.cmake#L34-L36>

Updating to use the ITKv5 final version should require less work.

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [May 31, 2019, 8:34pm UTC](https://discourse.slicer.org/t/itk5-released-are-we-ready-to-start-using-it/6985/3 "2019-05-31T20:34:47Z")

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That’s great @jcfr 👍

@siaeleni and I have an extension we’d like to submit but there was one small build error so we we’ve been holding back until Slicer moves to the new version. There’s no particular rush, but it’s good to know there aren’t any other showstoppers.

> <https://github.com/SNRLab/LineMarkerRegistration/pull/3>
>
> This commit moves the LineMarkerRegistration module
> into a subdirectory and als…o modernizes the code
> with a few C++ 11 and ITK v5 updates.
> 
> Note that to avoid a build error related to std::vector
> of bool on mac, ITK should include the following patch:
> https://github.com/InsightSoftwareConsortium/ITK/pull/486/files