18 versions of Viscosity are listed here, from August 27, 2021 to the current 1.13.2.1888. Each one links to the publisher’s own installer files.
18 versions over 5 years · about 3.5 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 1.13.2.1888Latest | October 1, 2026 | 17.1 MB | 64-bit EXE (Inno Setup) 17.1 MBARM64 EXE (Inno Setup) 17.1 MB Release notesupdated
OpenVPN updated to version 2.6.23
updated
OpenSSL updated to version 3.5.9
fixed
Various bug fixes and enhancements |
| 1.13.1.1884 | August 7, 2026 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup) Release notesupdated
OpenVPN updated to version 2.6.22
fixed
Resolves potential interface layout issues when changing display DPI
fixed
Workaround for traffic blocked by incompatible filters attached to VPN adapters
fixed
Resolves crash on legacy versions of Windows 11
fixed
Resolves potential crash when sleeping computer with active VPN connections
fixed
Various bug fixes and enhancements |
| 1.13.0.1877 | July 7, 2026 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup) Release notesadded
Enhanced Settings window design on Windows 11
added
Enhanced main menu design
added
Connection performance and throughput improvements
added
Support for modern PKCS#11 URI scheme when specifying a token identity
improved
Main menu scrolling and mouse wheel support
improved
Dark mode improvements for the Settings window and connection editor
improved
Single adapter now renamed to match the active VPN connection
improved
Settings window responsiveness improved when using CPU rendering
improved
PKCS#11 certificates can now match on additional details
improved
PKCS#11 identity selection menu improved
improved
Support for CloudConnexa Device Identity Verification and Enforcement
updated
OpenVPN updated to version 2.6.21
updated
OpenSSL updated to version 3.5.7
fixed
Resolves issue where the menu may not reflect the updated order of sorted connections
fixed
Resolves PKCS#11 failing on reconnects after a token signing error has occurred
fixed
Resolves issue where DNS servers or domains sent via IPv6 RA may be ignored
fixed
Resolves DHCP failing if the connection has used static assignments previously
fixed
Resolves rare issue where DNS setup could stall for an extended period
fixed
Resolves issue where a pushed MTU may override a locally set value
fixed
Resolves a rejected TCP connection attempt not being immediately processed
fixed
Resolves failed TCP connection attempts ignoring a reconnect delay value
fixed
Resolves incorrect connection time after system time changes
fixed
Various bug fixes and enhancements
removed
Legacy OpenVPN TAP Adapter support removed
removed
Windows 10 version 21H1 and older are no longer supported |
| 1.12.1.1857 | February 12, 2026 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup) Release notesupdated
OpenVPN updated to version 2.6.19
fixed
Various bug fixes and enhancements |
| 1.12.0.1855 | February 3, 2026 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup) Release notesadded
Support for AWS Client VPN SAML authentication
added
Support for WatchGuard SAML authentication
added
Import from Server support for WatchGuard devices
added
Support for connecting to HTTP and SOCKS proxies using IPv6
improved
Updated localizations
improved
Allow an optional separate CA to be specified when using PKCS#12
improved
Automatically exclude a transport SOCKS proxy from the VPN connection
updated
OpenVPN updated to version 2.6.17
updated
OpenSSL updated to version 3.0.19
fixed
Workaround for VPN adapter activation failures on PCs with Driver Store issues
fixed
Resolves a potential reachability failure when connecting using a HTTP or SOCKS proxy
fixed
Various bug fixes and enhancements |
| 1.11.5.1842 | May 15, 2025 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup) Release notesimproved
Updated localizations
improved
Performance improvements
updated
OpenVPN updated to version 2.6.14
updated
OpenSSL updated to version 3.0.16
fixed
Removes extraneous escaping when using a static challenge
fixed
Resolves some UI elements not being correctly localized
fixed
Various bug fixes and enhancements
removed
Windows 10 32-bit is no longer supported |
| 1.11.4.1835 | January 15, 2025 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup)32-bit EXE (Inno Setup) Release notesimproved
DNS engine performance and memory consumption improvements
updated
OpenSSL updated to version 3.0.15
fixed
Resolves background service memory spikes when receiving invalid DNS replies
fixed
Resolves issue where a connection may not fall back to secondary servers
fixed
Removes extraneous escaping when using RememberUsername setting
fixed
Resolves certain FIDO origin addresses being seen as invalid
fixed
Various bug fixes and enhancements |
| 1.11.3.1828 | August 27, 2024 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup)32-bit EXE (Inno Setup) Release notesupdated
OpenVPN updated to version 2.6.12
fixed
Authentication for SOCKS proxies is now correctly supported
fixed
Resolves issue where certain dynamic challenge requests may be ignored
fixed
Various bug fixes and enhancements |
| 1.11.2.1820 | June 6, 2024 | — | 64-bit EXE (Inno Setup)ARM64 EXE (Inno Setup)32-bit EXE (Inno Setup) Release notesupdated
OpenSSL updated to version 3.0.14
fixed
Resolves rare BSOD at computer sleep when using certain filter drivers
fixed
Various bug fixes and enhancements |
| 1.11.1.1814 | May 9, 2024 | — | Any CPU EXE (Inno Setup) |
| 1.11.0.1806 | February 22, 2024 | — | Any CPU EXE (Inno Setup) |
| 1.10.6.1790 | September 26, 2023 | — | Any CPU EXE (Inno Setup) |
| 1.10.5.1775 | March 13, 2023 | — | Any CPU EXE (Inno Setup) |
| 1.10.4.1769 | November 3, 2022 | — | Any CPU EXE (Inno Setup) |
| 1.10.3.1763 | June 22, 2022 | — | Any CPU EXE (Inno Setup) |
| 1.10.2.1754 | March 28, 2022 | — | Any CPU EXE (Inno Setup) |
| 1.10.1.1749 | November 17, 2021 | — | Any CPU EXE (Inno Setup) |
| 1.9.4.1732 | August 27, 2021 | — | Any CPU EXE (Inno Setup) |
