# CryoSPARC v5.1.1 Release Notes

**Version:** v5.1.1  
**Released:** November 6, 2026
**Source:** https://cryosparc.com/updates/v5.1.1

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Please see the full v5.1 changelog, update instructions, and compatibility notes here: [cryosparc.com/updates/v5.1](https://cryosparc.com/updates/v5.1)

Updated Volume Viewer now falls back to a legacy viewer if WebGPU is not enabled by the browser. The updated view can be [enabled with workarounds](https://guide.cryosparc.com/application-guide/volume-viewer#using-the-viewer-over-http-insecure-browser-contexts).

CryoSPARC starts correctly on RHEL/Rocky/AlmaLinux 8.

CryoSPARC startup no longer fails with `Error: Failed to import documents into Typesense` when Tags are missing in some projects.

Patch CTF with junk masking turned on no longer fails on data that has been Fourier-cropped to a ratio of 3/4.

Queuing a job directly to a GPU now behaves the same as in v5.0, i.e., it launches the job immediately rather than waiting for the GPU to be idle.