Release notes Personal Desktop Client 5.21

Release date: 2026-07-10

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.

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Last updated: July 10, 2026