SHA256 hash of UltraVNC_1831_X86_Setup.exe:
3d75bfb7b7edb6e2927ccd4f661aa349f9610306564d466cc4053e1d0efc9f60

SHA256 hash of UltraVNC_1831_X64_Setup.exe:
a351a06e12a86a85190112cc6b200e9bdafb2482843c2de27f48e51f498e9242

SHA256 hash of UltraVNC_1831.zip:
ccd520c1057d1983b1ce023dc42609d5a5d3439892500538a5adbb1e750aaf2d

SHA256 hash of UltraVNC_1831_x86_Setup.msi:
5fe76f6f0815aeb359e24ba0fef3a609c3dc61ebeab54a00b113592318ddcca1

SHA256 hash of UltraVNC_1831_x64_Setup.msi:
0f83483c2054bb42f9a4adffe38d0e55c688dd31b773b319192beeb4ab7e9215

INSTALLERS

Downloads:

UltraVNC 1.8.3.1 x86 Installer 1.8.3.1 NEWHOT

UltraVNC 1.8.3.1 x86 Installer

 GNU/GPL

 5446360

 4,795

Download

UltraVNC 1.8.3.1 x64 Installer 1.8.3.1 NEWHOT

UltraVNC 1.8.3.1 x64 Installer

 GNU/GPL

 6240608

 7,205

Download

UltraVNC 1.8.3.1 x86 MSI 1.8.3.1 NEWHOT

UltraVNC 1.8.3.1 x86 MSI

 GNU/GPL

 6004736

 262

Download

UltraVNC 1.8.3.1 x64 MSI 1.8.3.1 NEWHOT

UltraVNC 1.8.3.1 x64 MSI

 GNU/GPL

 6795264

 681

Download

Zipped x86/x64 binaries

UltraVNC 1.8.3.1 (ZIP) x86 x64 1.8.3.1 NEWHOT

UltraVNC 1.8.3.1 (ZIP) x86 x64

 GNU/GPL

 17239681

 975

Download

Changelog

UltraVNC 1.8.3.0

• noVNC support multi-monitors

• RealVNC Viewer support fix

• XZ encoder fix

• Translation updates

• Clipboard (HTML and BITMAP) fix

UltraVNC 1.8.2.9

• Purple halo that appeared around the mouse cursor fix

• Info messages (-InfoMsg) now display non-ASCII characters correctly

• Command-line options are now correctly re-applied when loading per-connection settings in the Viewer

• Crash/stability issue fixed when the Server detects the operating system version

UltraVNC 1.8.2.8

Security

• A heap overflow in Tight JPEG decoding and hardened the Viewer against malformed screen updates sent by a Server fix

Improvements & fixes

• -fullscreen now automatically hides the toolbar — No need for the -notoolbar workaround

• -logfile now accepts paths containing spaces (e.g., C:\Program Files\uvnc.log)

• Info messages (-InfoMsg) now support non-ASCII characters (UTF-8)

• Detection of empty and encrypted-empty passwords fix

• A network interruption (error 10004) being incorrectly reported as a system error fix

• The Viewer now correctly refreshes the screen when returning from dormant mode

• Various screen handling fixes

UltraVNC 1.8.2.5/1.8.2.6

New features

• Viewer passwords can now be saved securely in the Windows Credential Manager and are reused automatically on the next connection

• Added a noVNC web-based Viewer with TLS support

• File transfer: deleting multiple files at once works again, and file transfer with older Viewers is supported

• Portable mode: The server keeps running headless on systems without an explorer shell (e.g., WinPE)

Improvements & fixes

• The server no longer restarts when encryption is activated

• Horizontal scrolling in the Viewer fix

• Clipboard synchronization issues fix

• Display sizing on Windows 7 and improved automatic window sizing fix

• Quotes inside passwords can now be escaped on the command line (vncviewer.exe -password "123\"456")

• MS-Logon authentication (timeout, screen position) fixes

• A service running under a custom service name no longer reads ultravnc.ini

• Complete German translation for the server dialogs; all language files synchronized; dialog text enlarged so translations display properly

Security

• Security audit hardening: file-transfer paths pinned, safer DLL loading, and hardened service command handling

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