i was using 126.96.36.199 of winvnc and viewer 188.8.131.52 but want to try last version.
I use tablet win 10 on server side & pc win 7 on client side.
With 184.108.40.206 server & viewer:
When the server side rotate the screen (tablet) from landscape to portrait, the client side don't change the dispaly size screen & i have black part of screen not used.
other problem: if i have application that display the osk.exe (keyboard) on bottom screen & software on top. When in portrait mode & disabled when in landscap. When rotate the left part to the ground (landscape to portrait) screen are upside down. No probleme if rotate right part to the ground first & rotation to landscap and after to portrait (left side to the ground)
With 220.127.116.11 server & viewer 18.104.22.168: