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Version: 4.1 (2026 H2)

Release 4.1.10086.0 (November 2026)

Release 4.1.10086.0 is a maintenance release for Release 4.1.10085.0. It was prompted by security updates for Duende IdentityServer and .NET 10 that should not wait for the next release. It also includes three fixes for Outlook and Excel.

Security updates​

Duende IdentityServer 7.4.14. Sign-in to primedocs is based on Duende IdentityServer. Version 7.4.7, shipped so far, is affected by vulnerability GHSA-mxv6-xwqj-ww2p, rated high, which concerns Pushed Authorization Requests (PAR). primedocs disables PAR, so the vulnerability cannot be exploited. Release 4.1.10086.0 ships the fixed version 7.4.14.

.NET 10.0.14. Microsoft released .NET 10.0.14 as an out-of-band security update (CVE-2026-111497, Brotli compression). primedocs does not use Brotli decompression. The release moves the primedocs .NET packages from 10.0.13 to 10.0.14.

The release also replaces several libraries that their vendors have deprecated with their successors. This does not change the documented functionality. The update is recommended for all installations.

All changes​

Office add-ins​

Fixed

  • Signature names in the UI language (Outlook (classic)). The selection of primedocs signatures in the ribbon shows the signature names in the user's UI language. Previously, they always appeared in the default UI language of the datasource. If a translation is missing, the name appears in the parent language (for example German for German (Switzerland)), otherwise in the default UI language as before. The language of the email still determines which signatures are offered and in which language they are inserted. The translated names are available after the next distribution of the signatures.
  • Cc and Bcc are kept with «Create & open» (Outlook (new) and Outlook in the browser). When an email template is applied to an existing draft, its To, Cc and Bcc recipients and its subject are kept. The template's recipients are added, and each address appears only once. A confirmation prompt now only appears if the draft already contains text or a pasted image, because only the text is replaced by the template. Previously, Cc and Bcc were lost without notice.
  • Logo in the Excel header with a selected chart. If a chart is selected in a workbook, primedocs now updates pictures in the header and footer (such as the logo after a profile change) without an error. Previously, the update stopped with an error message. After the update, the previous cell selection is active again.

Important notices​

Update the server applications

The security updates are part of the primedocs server applications. The fix for the .NET runtime itself is delivered by the .NET 10 Windows Hosting Bundle. Updating it to version 10.0.14 is recommended. primedocs still only requires an installed .NET 10 Windows Hosting Bundle. Details: Update primedocs server.