This is the new Version 6.4, released 9/30/11 to fix the Internet access bug in Version 6.2.
If you are not using Internet access, there's no need to upgrade.

xyManager is the instructor's database manager
   for use with xyAlgebra and xySolver.

To download xyManager, please do the following:

1. Click here to send an e-mail to the author (optional, but much appreciated).
• As your e-mail SUBJECT, please use "Downloading xyManager" (or something similar).
• Please include your NAME and INSTITUTION in your message.
• You will receive at most three return e-mails a year concerning upgrades, bugs, etc.
• If your browser doesn't permit this, or to provide a different return address, please send your e-mail manually to: xy.userlist.987@mindspring.com
2. Click here to download the installer for xyManager 6.4.
    Run the installer program to install xyManager.
    Look for it in your Downloads Folder if no download location is requested.
3. Click here for a summary of the Sept. 2011 problem and recovery steps you may need.
4. Click here to return to the main Downloading page.