You need to do it manually at this point. Look at the version number of your current install and then check the site or the first post in this thread for the most recent version. The most recent version is from December 22 2009.
Updates
0.9.6.3 Nov 25:
+ Fix for installer on Vista/Win7, runs as admin by default
+ Fix for rectangular windows showing edges
+ Fix for window going off screen and saving that position
+ Fix for obscure invalid facet bug (needs more testing)
+ Fix for personal .map files crashing, maybe (needs more testing)
+ Can now edit and delete markers from within UOC
+ Adjustments to client/server protocol. New clients will work with older servers. New server will *NOT* work with older clients
0.9.6.4 Nov 27:
+ Fix crash when adding/removing markers
0.9.6.5 Dec 2:
+ Added "Disconnect", menu item, will switch depending on context
+ Disconnect on quitting UOC client
+ Fixed misspelt directory ( ), may pause a bit first time you run it while it copies everything. Pray it works on Vista/Win7
+ Log server info for client, in My Docs../UOCar../serverlog.txt
+ Updated server: tries to prevent multiple same users at once, sends version info, logs logoffs
* client is backwards compatible with older servers, server is NOT backwards compatible, as before. do not update server unless all clients are on 0.9.6.3 or later
0.9.6.6 Dec 5:
+Minor update for icons to make it easier to add custom ones. See this post:
http://vboards.stratics.com/showpost...&postcount=372
0.9.6.7 Dec 11:
+ Adds a filter sub-menu so you can filter out specific map files (saves it too!)
+ Removes duplicate map markers at run-time (somewhat indiscriminately)
+ Fix for uncommon "WSACancelBlockingCall" bug
+ Something else which I have since forgotten....
- Removed map (marker) files from the installer.
0.9.6.8 Dec 12:
+ Fix several bugs introduced with the new filtering system.
0.9.8.0 Dec 17:
+ Fix lat/long coors in Fel/Tram.
+ Find window extended to 3 tabs - "People & Places", "Lat & Long" and "X & Y". All work the same way and center the map on the chosen location (on the current facet). You can also tick the "Track?" button to get a destination pointer on the map that you can follow. (Use Clear Destination to get rid of it).
+ Installer will not overwrite icons.bmp or icons.txt if they exist.
0.9.8.1 Dec 22:
+ Minor performance improvement when connected to a server.
If you are not using the current version simply download the newest and install over top your existing version.