# CGNS v3.4.0

**URL:** https://discourse.paraview.org/t/cgns-v3-4-0/1749
**Category:** ParaView Support
**Created:** [May 2, 2019, 1:52pm UTC](https://discourse.paraview.org/t/cgns-v3-4-0/1749 "2019-05-02T13:52:55Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![xgarnaud](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/x/41988e/32.png) [@xgarnaud](https://discourse.paraview.org/u/xgarnaud)
#### Post date: [May 2, 2019, 1:52pm UTC](https://discourse.paraview.org/t/cgns-v3-4-0/1749/1 "2019-05-02T13:52:55Z")

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Dear all,

It seems there has been a change in the CGNS library in the way to save polygonal / polyhedral and mixed element meshes.  
Do you know if this is already supported in paraview? will the paraview reader remain compatible with the old format?  
Best regards,

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [May 2, 2019, 2:19pm UTC](https://discourse.paraview.org/t/cgns-v3-4-0/1749/2 "2019-05-02T14:19:56Z")

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There is a discussion about the issue here: [https://gitlab.kitware.com/paraview/paraview/issues/18837](https://gitlab.kitware.com/paraview/paraview/issues/18837)

Currently we’re targeting support for it in ParaView 5.8, due out in the towards the end of 2019.

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### Author: ![xgarnaud](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/x/41988e/32.png) [@xgarnaud](https://discourse.paraview.org/u/xgarnaud)
#### Post date: [May 2, 2019, 2:23pm UTC](https://discourse.paraview.org/t/cgns-v3-4-0/1749/3 "2019-05-02T14:23:53Z")

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Thank you.