Release notes Personal Desktop Client 5.21

Release date: 2026-07-10

Recommendation:
Customers using Personal Desktop Client 5.20 or later versions should remove the DisableCapiOverrideForRSA registry key to ensure optimal and future-proof operation. See KB5066835: KSP vs CSP transition and recommendations for Personal Desktop Client for details.

Feature

Jira ticket number	Description
PER-4901	Show remaining PIN attempts Personal Desktop Client now shows remaining PIN attempts (when the card supports it) in Windows (minidriver) and in Plugout. When using PKCS#11 C_Login with an incorrect PIN, Personal Desktop Client now sets both CKF_USER_PIN_COUNT_LOW and CKF_USER_PIN_FINAL_TRY flags when there is one PIN attempt remaining.

Contact and support

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For more information, go to Nexus Technical Support or contact your local sales representative.

Last updated: September 22, 2026