The major enhancements of the 6.2.28 client over the 5.10.45 client are as follows:

• The screen saver will display the graphics even if the screen saver has the password protected box checked
  
• There are several changes to improve the experience of running the software on Microsoft Vista
  
• A new preference is available to allow you to set the max percent of available processors to use. This field defaults to 100%. The number of processors used is the lesser of either this new value or the value of 'max number of processors' previously set on the device profile. You can access your device profiles here: http://www.worldcommunitygrid.org/ms/device/viewProfiles.do
  
• The latest version of libCurl is being used. This increases the number of proxies that are supported automatically
  
• The latest version of OpenSSL is being used
  
• A message is displayed if you are already connected to World Community Grid and you attempt to 'Add Project'. This is intended to help users understand the difference between joining a different BOINC project vs changing their participation for the projects available at World Community Grid
  
• The research applications will not start running until two minutes after BOINC has started. This will help some computers start up faster.
  Members can now set the maximum resource consumption allowed by the graphics. This field is set for a specific device profile http://www.worldcommunitygrid.org/ms/device/viewProfiles.do . The graphics will use at most X% of cpu time or run at a rate of at most Y frames per second. By default the graphics use at most 5% of cpu time and 7 frames per second.
  
• If the user installing the software is a new user or if they have never modified the cc_config.xml, then:
  • The software will use www.ibm.com in order to check if the BOINC client is connected to the internet. During the initial connection process, it will suggest that if the client cannot connect to the project or to ibm.com, then it will provide a list of things to check
    
  • The BOINC software will now contact World Community Grid to find out if a new version is available rather than contacting the BOINC servers. This gives us control of when the message about a new version being available appears on members messages log.

All members who join after November 19th, 2008 will be using the BOINC 6.2.28 client. All other members are encouraged to update to this new release.

If you are not sure which version you are using, then please follow the directions here to find out.