# \#release-process

**URL:** https://discourse.vtk.org/tag/release-process/20.md

[Latest](https://discourse.vtk.org/latest.md) · [Categories](https://discourse.vtk.org/categories.md) · [Tags](https://discourse.vtk.org/tags.md)

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## [VTK v9.5.2 release (planned for next week)](https://discourse.vtk.org/t/vtk-v9-5-2-release-planned-for-next-week/16032)

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**Author:** [@sankhesh](https://discourse.vtk.org/u/sankhesh)\
**Replies:** 0\
**Last updated:** [September 11, 2025, 4:12pm UTC](https://discourse.vtk.org/t/vtk-v9-5-2-release-planned-for-next-week/16032 "2025-09-11T16:12:03Z")

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Hello VTK users and developers, We expect to release version 9.5.2 next week. This update will include important bug fixes from version 9.5.1. Please review the relevant updates on the 9.5.2 milestone and prepare for t…

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## [VTK v9.5.1 release (planned for next week)](https://discourse.vtk.org/t/vtk-v9-5-1-release-planned-for-next-week/15955)

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**Author:** [@sankhesh](https://discourse.vtk.org/u/sankhesh)\
**Replies:** 0\
**Last updated:** [August 12, 2025, 2:23pm UTC](https://discourse.vtk.org/t/vtk-v9-5-1-release-planned-for-next-week/15955 "2025-08-12T14:23:56Z")

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Hello VTK users and developers, We expect to release version 9.5.1 next week. This update will include important bug fixes from version 9.5.0. Please review the relevant updates on the 9.5.1 milestone and prepare for t…

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## [Is a VTK+ITK+Qt stack CI/CD Docker runnner feasible?](https://discourse.vtk.org/t/is-a-vtk-itk-qt-stack-ci-cd-docker-runnner-feasible/15890)

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**Author:** [@Daan\_Baas](https://discourse.vtk.org/u/Daan_Baas)\
**Replies:** 5\
**Last updated:** [August 1, 2025, 4:23pm UTC](https://discourse.vtk.org/t/is-a-vtk-itk-qt-stack-ci-cd-docker-runnner-feasible/15890 "2025-08-01T16:23:25Z")

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Hello all, Does anyone around here know whether it is feasible or whether it even makes sense to set up a C++ Continuous Integration/Continuous Delivery(CI/CD) build server that can run inside Docker? “Duh…” I hear th…

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## [VTK 9.5.0.rc1](https://discourse.vtk.org/t/vtk-9-5-0-rc1/15630)

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**Author:** [@sankhesh](https://discourse.vtk.org/u/sankhesh)\
**Replies:** 0\
**Last updated:** [May 15, 2025, 2:42pm UTC](https://discourse.vtk.org/t/vtk-9-5-0-rc1/15630 "2025-05-15T14:42:30Z")

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VTK 9.5.0.rc1 has been tagged! Downloads for docs, sources, wheels, release notes should be available in the coming week. In the meantime, please feel free to test the candidate, report issues, and submit patches. If ma…

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## [Unexpected background due to opacity in volume rendering](https://discourse.vtk.org/t/unexpected-background-due-to-opacity-in-volume-rendering/13714)

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**Author:** [@huaweiping](https://discourse.vtk.org/u/huaweiping)\
**Replies:** 0\
**Last updated:** [April 15, 2024, 5:53pm UTC](https://discourse.vtk.org/t/unexpected-background-due-to-opacity-in-volume-rendering/13714 "2024-04-15T17:53:52Z")

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Hi all, I’m using the vtkVolume to render my oceanography dataset. The valid scalar value is originally in a NetCDF file accompanied by NaN, so I read it in C++ and convert it into a vtkImageData. It seems the NaN is set…

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## [VTK 9.3.0 is out](https://discourse.vtk.org/t/vtk-9-3-0-is-out/12709)

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**Author:** [@willdunklin](https://discourse.vtk.org/u/willdunklin)\
**Replies:** 1\
**Last updated:** [November 15, 2023, 1:00pm UTC](https://discourse.vtk.org/t/vtk-9-3-0-is-out/12709 "2023-11-15T13:00:38Z")

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VTK 9.3.0 is finally here! This release includes a new customizable ABI namespace, new filters, data types and IO wrapppers, various performance improvements, and many, many other new features not listed here. Please see…

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## [VTK 9.3.0.rc2 has been tagged](https://discourse.vtk.org/t/vtk-9-3-0-rc2-has-been-tagged/12575)

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**Author:** [@willdunklin](https://discourse.vtk.org/u/willdunklin)\
**Replies:** 0\
**Last updated:** [October 30, 2023, 10:26pm UTC](https://discourse.vtk.org/t/vtk-9-3-0-rc2-has-been-tagged/12575 "2023-10-30T22:26:11Z")

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VTK 9.3.0.rc2 has been tagged! Downloads for docs, sources, wheels should be available on the VTK site no later than tomorrow (October 31). Hopefully this is the last release candidate before the full 9.3 release. Please…

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## [VTK 9.3.0 Release Cycle](https://discourse.vtk.org/t/vtk-9-3-0-release-cycle/11598)

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**Author:** [@willdunklin](https://discourse.vtk.org/u/willdunklin)\
**Replies:** 5\
**Last updated:** [October 5, 2023, 7:22am UTC](https://discourse.vtk.org/t/vtk-9-3-0-release-cycle/11598 "2023-10-05T07:22:49Z")

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Hi all, It’s about time for another VTK release. The CI dashboards have been stabilizing fairly well and it seems like a good time to start cutting a release. Tentative dates: Jun 15: branch and create rc1 Jun 22: r…

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## [VTK 9.3.0.rc1 has been tagged](https://discourse.vtk.org/t/vtk-9-3-0-rc1-has-been-tagged/12144)

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**Author:** [@willdunklin](https://discourse.vtk.org/u/willdunklin)\
**Replies:** 0\
**Last updated:** [August 14, 2023, 2:49pm UTC](https://discourse.vtk.org/t/vtk-9-3-0-rc1-has-been-tagged/12144 "2023-08-14T14:49:32Z")

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VTK 9.3.0.rc1 has been tagged! Downloads for docs, sources, wheels should be available later today (Aug 14). Please report any issues you find. Downloads: https://vtk.org/download/ Release notes: https://gitlab.kitwar…

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## [How can I show just border of Actor](https://discourse.vtk.org/t/how-can-i-show-just-border-of-actor/11903)

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**Author:** [@A.M\_Shahpouri](https://discourse.vtk.org/u/A.M_Shahpouri)\
**Replies:** 6\
**Last updated:** [July 15, 2023, 8:28am UTC](https://discourse.vtk.org/t/how-can-i-show-just-border-of-actor/11903 "2023-07-15T08:28:26Z")

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Hi I have a filled Actor Now I want to view just Border of this actor how can I do this?

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## [About vtkImagePlaneWidget remove or delete vtkImageData from it self.](https://discourse.vtk.org/t/about-vtkimageplanewidget-remove-or-delete-vtkimagedata-from-it-self/11675)

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**Author:** [@wulicheng](https://discourse.vtk.org/u/wulicheng)\
**Replies:** 0\
**Last updated:** [June 12, 2023, 2:40am UTC](https://discourse.vtk.org/t/about-vtkimageplanewidget-remove-or-delete-vtkimagedata-from-it-self/11675 "2023-06-12T02:40:06Z")

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Now, I created a vtkImagePlaneWidget instance, and i set the vtkImageData by SetInputDataConnection(). Now, I want to set another vtkImageData instance, But I don’t konw how to remove the first vtkImageData instance or …

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## [VTK 9.0.0.rc3](https://discourse.vtk.org/t/vtk-9-0-0-rc3/3113)

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**Author:** [@TJ\_Corona](https://discourse.vtk.org/u/TJ_Corona)\
**Replies:** 0\
**Last updated:** [April 20, 2020, 8:39pm UTC](https://discourse.vtk.org/t/vtk-9-0-0-rc3/3113 "2020-04-20T20:39:54Z")

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The VTK maintenance team is happy to announce that VTK 9.0.0 RC3 is available for testing! You can find the source, data, documentation tarballs and python wheels for linux and OS X here (the python wheels are made usin…

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## [VTK 9.1.0.rc1 has been tagged](https://discourse.vtk.org/t/vtk-9-1-0-rc1-has-been-tagged/6747)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 0\
**Last updated:** [October 1, 2021, 6:24pm UTC](https://discourse.vtk.org/t/vtk-9-1-0-rc1-has-been-tagged/6747 "2021-10-01T18:24:04Z")

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VTK 9.1.0.rc1 has been tagged. Wheels, docs, and sources will be available later today (or Monday). Please report any issues! Also, if there is anything that should be mentioned and is missing, please feel free to add to…

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## [VTK 9.1.0.rc2 has been tagged](https://discourse.vtk.org/t/vtk-9-1-0-rc2-has-been-tagged/6802)

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**Author:** [@vbolea](https://discourse.vtk.org/u/vbolea)\
**Replies:** 0\
**Last updated:** [October 11, 2021, 11:10pm UTC](https://discourse.vtk.org/t/vtk-9-1-0-rc2-has-been-tagged/6802 "2021-10-11T23:10:02Z")

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:tada: :tada: :tada: VTK 9.1.0.rc2 has been tagged. Wheels, docs, and sources are already available. Please report any issues! Also, if there is anything that should be mentioned and is missing, please feel free to add …

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## [VTK 9.2.0.rc2 has been tagged](https://discourse.vtk.org/t/vtk-9-2-0-rc2-has-been-tagged/9037)

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**Author:** [@vbolea](https://discourse.vtk.org/u/vbolea)\
**Replies:** 0\
**Last updated:** [July 28, 2022, 10:22pm UTC](https://discourse.vtk.org/t/vtk-9-2-0-rc2-has-been-tagged/9037 "2022-07-28T22:22:27Z")

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:tada: :tada: :tada: VTK 9.2.0.rc2 is out on PyPI and in the main repository. The website should be updated within a day or two. Please report any issues. :tada: :tada: :tada:

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## [VTK 9.2.5 is out](https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549)

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**Author:** [@mwestphal](https://discourse.vtk.org/u/mwestphal)\
**Replies:** 0\
**Last updated:** [January 27, 2023, 3:28pm UTC](https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549 "2023-01-27T15:28:48Z")

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VTK 9.2.5 is out. This release comes with three critical fixes, one for shipping webapp in VTK, one regarding window resizing and a fix for a CVE in VTK. Downloads: https://vtk.org/download/ Release notes: https://git…

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## [VTK 9.2.6 is out](https://discourse.vtk.org/t/vtk-9-2-6-is-out/10707)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 0\
**Last updated:** [February 15, 2023, 11:21pm UTC](https://discourse.vtk.org/t/vtk-9-2-6-is-out/10707 "2023-02-15T23:21:22Z")

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VTK 9.2.6 is out. This release contains fixes for: y coordinates in the Conduit source filter static analysis support from the vtk module bounds extraction in vtkModifiedBSPTree OSMesa wheels are available on VTK’s P…

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## [VTK 9.2.4 is out](https://discourse.vtk.org/t/vtk-9-2-4-is-out/10348)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 1\
**Last updated:** [January 2, 2023, 3:58pm UTC](https://discourse.vtk.org/t/vtk-9-2-4-is-out/10348 "2023-01-02T15:58:17Z")

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VTK 9.2.4 is out.\[^1\] This release comes with Python wheels for Python 3.11 and SDKs for building further wheels based on VTK’s C++ API. It also improves compatibility for newer NumPy (1.24+) and Matplotlib (3.6+) releas…

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## [VTK 9.2.2 is out](https://discourse.vtk.org/t/vtk-9-2-2-is-out/9520)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 7\
**Last updated:** [October 7, 2022, 1:05pm UTC](https://discourse.vtk.org/t/vtk-9-2-2-is-out/9520 "2022-10-07T13:05:14Z")

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VTK 9.2.2 is finally out. This release comes with Python wheels for Python 3.10 and SDKs for building further wheels based on VTK’s C++ API. Python 3.11 is not included as our dependencies don’t seem to be ready yet. Do…

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## [VTK 9.2.0 Release Cycle](https://discourse.vtk.org/t/vtk-9-2-0-release-cycle/8149)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 9\
**Last updated:** [September 30, 2022, 6:49pm UTC](https://discourse.vtk.org/t/vtk-9-2-0-release-cycle/8149 "2022-09-30T18:49:21Z")

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Hi all, It’s about time for another VTK release. The CI dashboards have been stabilizing fairly well with just one flaky test (being excluded here) and it seems like a good time to start cutting a release. Tentative da…

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## [VTK 9.2.0.rc1 is out](https://discourse.vtk.org/t/vtk-9-2-0-rc1-is-out/8771)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 3\
**Last updated:** [July 26, 2022, 1:39pm UTC](https://discourse.vtk.org/t/vtk-9-2-0-rc1-is-out/8771 "2022-07-26T13:39:50Z")

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VTK 9.2.0.rc1 is finally out. This release comes with Python wheels for Python 3.10 and SDKs for building further wheels based on VTK’s C++ API. Downloads: https://vtk.org/download/ Release notes: https://gitlab.kitwar…

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## [VTK 9.1 Release Cycle](https://discourse.vtk.org/t/vtk-9-1-release-cycle/6664)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 14\
**Last updated:** [January 12, 2022, 6:51am UTC](https://discourse.vtk.org/t/vtk-9-1-release-cycle/6664 "2022-01-12T06:51:32Z")

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Hi all, It’s about time for a VTK release. The CI dashboards have been stabilizing fairly well and it seems like a good time to start cutting a release. Tentative dates: Sep 27: branch and create rc1 Oct 4: rc2 and …

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## [9.1.0 is out](https://discourse.vtk.org/t/9-1-0-is-out/7084)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 4\
**Last updated:** [November 8, 2021, 1:11pm UTC](https://discourse.vtk.org/t/9-1-0-is-out/7084 "2021-11-08T13:11:02Z")

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Hi all, 9.1.0 is out on PyPI, the repository, and the website. Changes since rc4 include some FindHDF5 fixes, missing includes, and new CMake policy warning changes. Release notes can be found here. The next big releas…

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## [VTK 9.1.0.rc4 has been tagged](https://discourse.vtk.org/t/vtk-9-1-0-rc4-has-been-tagged/7037)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 6\
**Last updated:** [November 3, 2021, 3:05pm UTC](https://discourse.vtk.org/t/vtk-9-1-0-rc4-has-been-tagged/7037 "2021-11-03T15:05:58Z")

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Hi all, 9.1.0.rc4 (rc3 had some process timing issues that ended up forcing it to be skipped) is out on PyPI and the repository. The website should be updated within a day or two. This is to be the last rc before the fi…

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## [VTK 9.0.3](https://discourse.vtk.org/t/vtk-9-0-3/6128)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 13\
**Last updated:** [July 30, 2021, 4:41am UTC](https://discourse.vtk.org/t/vtk-9-0-3/6128 "2021-07-30T04:41:01Z")

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VTK 9.0.3 is now released. This fixes the VTK\_DEBUG\_LEAKS flag in the official wheels as compared to 9.0.2.

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## [VTK 9.0.2](https://discourse.vtk.org/t/vtk-9-0-2/6107)

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**Author:** [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)\
**Replies:** 27\
**Last updated:** [July 16, 2021, 7:29pm UTC](https://discourse.vtk.org/t/vtk-9-0-2/6107 "2021-07-16T19:29:27Z")

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It’s finally here :slight\_smile: . Wheels have been uploaded to PyPI and VTK’s package registry. Source, data, and documentation tarballs are on the website. Still TODO: upload 9.0.2 Doxygen to the website Seems VTK…

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## [VTK 9.0.0](https://discourse.vtk.org/t/vtk-9-0-0/3205)

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**Author:** [@TJ\_Corona](https://discourse.vtk.org/u/TJ_Corona)\
**Replies:** 5\
**Last updated:** [June 11, 2020, 12:00pm UTC](https://discourse.vtk.org/t/vtk-9-0-0/3205 "2020-06-11T12:00:48Z")

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The VTK development team is pleased to introduce VTK 9.0.0. This major release includes many improvements and fixes to VTK, as well as new features that extend VTK’s utility as a state-of-the-art toolkit for scientific …

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## [VTK 9.0.0.rc2](https://discourse.vtk.org/t/vtk-9-0-0-rc2/2977)

<div class="topic-metadata">

**Author:** [@TJ\_Corona](https://discourse.vtk.org/u/TJ_Corona)\
**Replies:** 1\
**Last updated:** [April 8, 2020, 3:02am UTC](https://discourse.vtk.org/t/vtk-9-0-0-rc2/2977 "2020-04-08T03:02:14Z")

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The VTK maintenance team is happy to announce that VTK 9.0.0 RC2 is available for testing! You can find the source, data and documentation tarballs here . Take a look at the VTK wiki for a complete list of API changes…

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## [VTK 9.0.0.rc1](https://discourse.vtk.org/t/vtk-9-0-0-rc1/2860)

<div class="topic-metadata">

**Author:** [@TJ\_Corona](https://discourse.vtk.org/u/TJ_Corona)\
**Replies:** 15\
**Last updated:** [March 25, 2020, 4:03pm UTC](https://discourse.vtk.org/t/vtk-9-0-0-rc1/2860 "2020-03-25T16:03:59Z")

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The VTK maintenance team is happy to announce that VTK 9.0 has entered the release candidate stage! You can find the source, data and documentation tarballs here. Take a look at the VTK wiki for a complete list of API …