Information regarding updates for Jack version 6 can be found on our
Jack 6 service page.
Note: The above link is for version 6 only.
For Jack version 5.0 visit the
Jack 5 service page exists.
If you encounter a problem using our software please check our
Frequently Asked Questions page
(FAQ Jack 5, 6,
or FAQ Jack 1, 2, 3, 4)
or the appropriate service page (Jack 5 or Jack 6) first
to see if your problem is already treated there.
If you haven't been able to find the answer on our website you can
contact your vendor or follow the contact instructions on our
License conditions and registration Jack
An overview of the bidding conventions Jack knows about