# CryoSPARC v4.2.1 Release Notes

**Version:** v4.2.1  
**Released:** March 15, 2023
**Source:** https://cryosparc.com/updates/v4.2.1

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We are excited to announce the stable release of CryoSPARC v4! This release contains various updates and performance improvements:

A project-level parameter now controls whether or not jobs output <a href="https://guide.cryosparc.com/setup-configuration-and-management/software-system-guides/guide-data-management-in-cryosparc-v4.0+#4.-ability-to-clear-intermediate-results">intermediate results</a>, with default on. Turning this off will save disk space, without having to manually clear intermediate results after the jobs complete.

In <a href="https://guide.cryosparc.com/processing-data/all-job-types-in-cryosparc/utilities/job-particle-sets-tool"><em>Particle Sets Tool</em></a> and <a href="https://guide.cryosparc.com/processing-data/all-job-types-in-cryosparc/utilities/job-exposure-sets-tool"><em>Exposure Sets Tool</em></a> jobs, add note in event log indicating that result groups are taken from set <code>A</code> for the <code>intersect</code> dataset.

In <em>Average Power Spectra</em> job, print particle pixel size and power spectra sample spacing to the event log.

<em>Manual Picker</em> no longer fails when micrograph CTF input is not provided.

Resolved an issue where loading external data for the homepage modules would fail if a non-standard response was received.

Prevented a database error from occurring when no recent items existed for a user.

Fixed issue where copying to the clipboard would not work in some cases depending on how CryoSPARC was hosted over an internal network.

Priority field in the job queuing slide-over is now required and cannot be empty.

Resolved an issue where a previously selected entity was still selected after creating a new project.

Resolved an issue where clearing a job would not reset its queue priority.

Resolved an issue where completed jobs that were deleted displayed within project, workspace and session cards.

In <em>3D Classification</em>, fixed <code>KeyError</code> with CTF fields when “Output results after every F-EM iteration” is enabled.

Fixed an issue where re-ordering classes and outputting intermediate results in 3D Classification conflicted and caused the job to fail. These options are now mutually exclusive.