-Fixed issue 20423: [security] Open redirect vulnerability (Thank you to Melvin Lammerts for reporting the issue)
-Fixed issue: [security] RemoteControl API user export exports too much information (Carsten Schmitz)
-Fixed issue AT-1871: datestamps showing incorrect value when datestamp setting is off (#4649) (Stefan K)
-Fixed issue #CT-1634: survey loses customized theme settings on submit page (#4756) (Tim Willig)
-Fixed issue #AT-1949: fixed background color of the sticky menu and lower shadow intensity (#4745) (Stefan K)
-Fixed issue #20444: SQL error during update to 6.16.11 and using Postgres (Stefan K)
-Fixed issue #20443: User with all survey permissions and global "Create Survey" permission cannot copy surveys owned by others (Carsten Schmitz)
-Fixed issue #20244: Deprecation error in Upload question type when debug mode is activated (Carsten Schmitz)
-Fixed issue #20106: Broken loading of survey theme options with force_xmlsettings_for_survey_rendering enabled (Carsten Schmitz)
-Fixed issue: Token views - added header element changes instead of aria-level declaration (a11y) (#4602) (Tim Willig)
-Fixed issue: a11y compliant dropdowns in extraMenu.php (a11y) (#4709) (Tim Willig)
-Fixed issue: tab roles for text element settings and themes (a11y) (#4680) (Anblik Audit Team)
-Fixed issue: roles and tags for lists of participants and surveythemes (a11y) (#4676) (Anblik Audit Team)
-Fixed issue: adding descriptive ARIA labels to email method, SMTP encryption, and SMTP debug controls in global settings (a11y) (#4675) (Anblik Audit Team)
-Fixed issue: added roles to massive action and added roles/aria labels to question and groups overview page (a11y) (#4737) (Anblik Audit Team)
-Fixed issue: added disabled attribute on massive action menu (a11y) (#4674) (Anblik Audit Team)
-Fixed issue: improved label–input associations in assessments + correct tab roles for Quotas (a11y) (#4678) (Anblik Audit Team)
-Fixed issue: add screen-reader-only table captions (a11y) (#4749) (Anblik Audit Team)
-Fixed issue: add optional table captions, fix modal dialogs with aria-labelledby/aria-modal, add aria-labels to close buttons, and enhance data grid header checkbox ARIA labeling (a11y) (#4735) (Anblik Audit Team)
-Fixed issue: improvements to mass edit form in send email dropdown (a11y) (#4738) (Anblik Audit Team)