A software update is a downloadable file that will modify your current installation of the software to the latest release. For example, if you have a copy of version 5.0.4 on your computer this is not the most recent release of version 5--applying the update program will upgrade to the latest version. The updates will transform any previous version of the program to the latest release.

No, the update only changes the program files.

The update packs incorporate fixes to the program that are likely to overcome potential problems you may encounter. All software programs will have bugs that can result in program crashes. Applying the update will reduce such occurrences and so improve your experience with the program.

Just download the update and run it. To install new software you will need "Administrator" security rights. Please consult your system software administrator if you are unsure about what this means.

We number our software follows. Software releases are designated in the manner "A.B.C" where A is the version number, B is reserved for future use (in all current releases this is "0") and C is the minor revision number. We have a policy of correcting faults in the operation of the program and where this is done we use the minor revision number to allow users to know which particular build of the program they have. It is our view that a change to the minor revision number has no influence on the substantive operation of our programs. We are aware, however, that some large companies take the view that any change cannot be permitted. While we disagree with this interpretation, users who are in doubt should consult their company policy.

Single-user Licenses. The downloadable updates only upgrade the version of the program that you originally purchased. To upgrade to the latest version of the program you have to purchase an upgrade pack.

Multi-user Licenses. A multi-user license will allow the latest version of GraFit to be used, including later versions. Just install the new version on your computer and you will be able to run it.