This release updates PuTTY CAC 0.85 with the following changes since Update 1. This release was compiled with Microsoft Visual Studio 2026.
Enhancements:
- Added tab groups and customizable tab and group colors to PuTTYTab (puttytab.exe), with improvements to display scaling and focus handling.
- Added the certificate subject to copied public-key comments by default. Hold Shift while selecting Copy To Clipboard to omit the subject.
Fixes:
- Fixed focus and responsiveness issues with FIDO authentication and key-creation dialogs.
- Fixed cached PIN allocation and handling.
- Fixed Pageant certificate-list persistence during startup.
- Fixed wildcard certificate selection during SSH authentication.
- Improved certificate creation, deletion, and public-key parsing error handling.
MSI Installers
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-arm64.msi
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-x86.msi
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-x64.msi
ZIP Files (Contains All Executables)
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-arm64.zip
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-x86.zip
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-0.85u2-x64.zip
Binary Hash Information
https://github.com/NoMoreFood/putty-cac/releases/download/0.85u2/puttycac-hash.txt
Other Tools
https://github.com/NoMoreFood/putty-cac/raw/0.85u2/tools/CertificateTransformer.ps1