After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome

2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130

2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome

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Silly Question... but

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Cheval
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Posts: 32
Joined: 2009-11-10 05:12

Silly Question... but

Post by Cheval »

I know the easy answer is just get the latest version but it's not as easy as one would like...

We've not kept up with the latest versions of UltraVNC and can't immediately bring all the systems up to the latest version.

That being the case, which versions work together and which will not work together?

ie. How far back in versions will each server talk to clients?

I am only interested in remote control over a secure VPN, so not worried about file transfer, blacking out the screen, multi-monitor, plug-ins, etc.
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Rudi De Vos
Admin & Developer
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Posts: 6978
Joined: 2004-04-23 10:21
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Re: Silly Question... but

Post by Rudi De Vos »

If you don't use a ultravnc viewer ( a tight or realvnc viewer) it should work with all versions.
This internal switch the servers to compatibility mode.

The backword compatibility with vncviewer seems to be broken. There were some bugs in the old server that get triggered
by the new viewer.

We need to cross test all versions, current we don't have a list.
Sorry
UltraVNC links (join us on social networks):
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- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
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- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
- uvnc2me: https://uvnc2me.com/
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