Minimum OS: Windows 7

UltraVNC 1.6.4.0

1.6.4.0

INSTALLERS

MSI

Zipped x86/x64 binaries

SC

 

UltraVNC – Changelog

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1.6.4.0 – June 2025

• Update viewer layout
• Viewer, SessionDialog wrong size after dpi change #278
• Fix to small msg buffer size
• Fix big border (ThomasLevering)
• Update GNOME /QEMU display settings text + zlibbuffer was unneeded recrated
• Fix vncviewer crash #58
• FIX empty password detection, also for SC
• Fix bug in undefer_input() that misplaced the input state. (#272)
• Do not accept Anonymous TLS sub-types during VeNCrypt authentication (#274)
  But allow fallback to standard RFB types (e.g. rfbVncAuth)

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1.6.1.0 – May 2025

• Fixed Chat Japanese chars
• Fixed saving listenport
• Fixed saving custom messages accept/reject
• Fixed save settings should not reload defaults

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1.6.0.0 – April 2025

• Updated dev version to release.

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1.5.0.18-dev – April 2025

• Use single DLL instead of V2 version.

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1.5.0.17-dev – April 2025

• International keyboard fix.

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1.5.0.16-dev – April 2025

• Viewer defaults were not loading.

• Possible keyboard fix (to verify) — supports characters like +ěščřžýáíé=´.

• Renamed authSSPV2 loggingV2.dll to fix Event Viewer messages on x64.

• Echoserver fix.

• Fix for broken sc_20 build.

Keyboard Notes:

• The "international keyboard" option must be enabled on the server.

• Only tested using a virtual Czech keyboard.

Bug Detail:

• Viewer defaults missing caused issues like incorrect INI viewonly mode and wrong encoding settings.

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1.5.0.15-dev – March 2025

• File Transfer: Fixed buffer overflow and memory leak (#254).

• Added service to settings.

• Log file movement fix.

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1.5.0.14-dev – March 2025

• Slider fix.

• Fixed DSMPlugin and MS-Logon settings when running as standalone.

• Resolved bug where own messages weren’t logged due to logfile move.

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1.5.0.13-dev – March 2025

• Moved log file to the ultravnc.ini folder.

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1.5.0.12-dev – March 2025

• File Transfer window size fix.

• Fix for crash on Microsoft Windows 7.

• Installer: Added "Run as admin" to settings shortcut.

• Installer: .ini file now copied to ProgramData before service starts.

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1.5.0.10-dev – March 2025

• DSMPlugin configuration fix.

• Fixed "Apply Save Settings" functionality.

• Clearing admin password also clears VNC password.

• ISOtime added in About window + smaller max size.

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1.5.0.9-dev – March 2025

• Removed installer popups.

• Fixed issue where some settings weren’t saved correctly.

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1.5.0.8-dev – March 2025

• Save settings fix.

• Typo correction.

• Added Bluesky integration.

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1.5.0.7-dev – March 2025

• Command line can now overwrite default values.

• Settings dialog can run standalone.

• Viewer: Focus set to host input field.

• General bug fixes.

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1.5.0.5-dev – February 2025

• Fallback to old folder if ultravnc.ini is missing.

• Command line options take priority in Viewer.

• Encryption fix for viewonly (VNC password).

• UI/UX: Settings dialog enable/disable cosmetic fix.

• Plugin architecture check (32/64-bit) before use.

• Chunked messages and default client certs allowed in TLS (#250).

• Rules fix.

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1.5.0.4-dev – February 2024

• UI update.

• Moved ini file to ProgramData.

• Bug fixes (see Git).

• Added admin password functionality.

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1.5.0.3-dev

• UI corrections.

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1.5.0.2-dev

• Merged IPv4 & IPv6 into a single EXE with switchable property.

• Fixed RealVNC UDP port usage.

• UI improvements: layout and icons.

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1.5.0.1-dev

• Reverted fonts in File Transfer.

• Fullscreen: Added Chat and File Transfer to topbar.

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1.5.0.0-dev

• DirectX reconnect fix.

• Added extra links.

• Text/version info fixes.

• Switched to vcpkg for easier library maintenance.

• Fixed stack corruption (#185).

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1.4.4.0-dev

• Code cleanup.

• UI spellcheck and standardization.

• TLS: Added CertVerifyCertificateChainPolicy API (#144).

• Switched to Arial font.

• TLS-encrypted transport via VeNCrypt authentication (#142).

• WIP: RSA-AES auth & encryption (#139).

• Fixed typo: "Repetear" → "Repeater" (#138).

• Windows Recovery Environment (WinRE 10) fix.

• Snapshot naming now sortable by date.

• Unified omnithread usage for Server and Viewer.

• Reinit D3D device on invalid pre-update (#130).

• SC: UAC restoration with try/catch.

• Scrollbar added to properties.

• Fixed group default settings load order.

• SC UAC reset fix.

• Able to connect to Debian v12 "bookworm" via WayVNC (#133).

  

License

GNU GENERAL PUBLIC LICENSE (GPL)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

https://www.gnu.org/licenses