# Download source for VTK 9.1.x?

**URL:** https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199
**Category:** Support
**Created:** [August 24, 2023, 10:29pm UTC](https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199 "2023-08-24T22:29:02Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Tomasso](https://discourse.vtk.org/user_avatar/discourse.vtk.org/tomasso/32/5786_2.png) [@Tomasso](https://discourse.vtk.org/u/Tomasso)
#### Post date: [August 24, 2023, 10:29pm UTC](https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199/1 "2023-08-24T22:29:02Z")

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The [VTK download page](https://vtk.org/download/) shows the current release, the previous release, and a release before that. E.g. it currently shows VTK-9.3.0.RC, VTK-8.2.0, and VTK-7.1.1.

Is it possible for me to load a previous version that does not show on that page?  
E.g. where can I download source for VTK-9.1.x?

I see [vtkVersion.cmake for 9.1.0 here](https://gitlab.kitware.com/vtk/vtk/-/blob/b05bf13b2d0b25e618993153036149bf6a16ac18/CMake/vtkVersion.cmake) - probably a dumb question but how do I use this file?

Thanks!

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### Author: ![Christos\_Tsolakis](https://discourse.vtk.org/user_avatar/discourse.vtk.org/christos_tsolakis/32/2076_2.png) [@Christos\_Tsolakis](https://discourse.vtk.org/u/Christos_Tsolakis)
#### Post date: [August 24, 2023, 10:49pm UTC](https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199/2 "2023-08-24T22:49:06Z")

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> Is it possible for me to load a previous version that does not show on that page?

Yes! Here are the steps:

- Go to the [gitlab](https://gitlab.kitware.com/vtk/vtk) repository of VTK
- Switch the dropdown on the left from `master` to the tag you are interested in e.g `v9.1.0`
- Click the download button (next to clone on the right) and you will get an archive of the code.

> I see [vtkVersion.cmake for 9.1.0 here](https://gitlab.kitware.com/vtk/vtk/-/blob/b05bf13b2d0b25e618993153036149bf6a16ac18/CMake/vtkVersion.cmake) - probably a dumb question but how do I use this file?

No need to use it directly . Once you download the archive you can follow the [build instructions](https://docs.vtk.org/en/latest/build_instructions/index.html).

You may also want to check the [getting started](https://docs.vtk.org/en/latest/getting_started/index.html) guide.

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### Author: ![Tomasso](https://discourse.vtk.org/user_avatar/discourse.vtk.org/tomasso/32/5786_2.png) [@Tomasso](https://discourse.vtk.org/u/Tomasso)
#### Post date: [August 24, 2023, 11:11pm UTC](https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199/3 "2023-08-24T23:11:32Z")

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Excellent - thanks!

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### Author: ![ben.boeckel](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/ea5d25/32.png) [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [August 25, 2023, 6:14pm UTC](https://discourse.vtk.org/t/download-source-for-vtk-9-1-x/12199/4 "2023-08-25T18:14:52Z")

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Note that submodules (vtkm) is missing from those downloads. You should be able to guess names based on the URL pattern ([https://www.vtk.org/files/release/9.3/VTK-9.3.0.rc1.tar.gz](https://www.vtk.org/files/release/9.3/VTK-9.3.0.rc1.tar.gz)), but I suppose we need the hashes somewhere.