VO 1.8.91 includes:

- Logoff timer is now increased to 30 seconds if you should receive a private message. The extended logoff period exists for 20 seconds after receiving any incoming message. After waiting the extended countdown period, logoff proceeds normally. This only occurs during flight, not in stations.
- Fixed bug with Linux version where the client didn't use some of the enumerated resolutions correctly.
- Added ability to override window-mode resolution in Linux. For example:
[refgl]
xf86vidmode=0
xsize=1000
ysize=1000
- Fixed crashing sectors.