I'm not sure I want to upgrade. How do I know what has changed from the version I have?

It's understandable.  If it's not broke, don't fix it, right?  While that is normally the case, sometimes we add new features or even fix issues that you may not yet be aware of.  In any case, here's a simple way to figure out if you want to upgrade:

1) Start Punch Clock and take note of your version number.  In the image below, you can see that the version this person is running is version 3.0.31.

2) Next, visit our RELEASE NOTES page.  The release notes page shows all of the things fixed or added in a release.

3) In the above excerpt from our Release Notes page, you see the changes for the next 2 versions from the version we showed.  It seems that in version 3.0.32, we added some cool new functionailty for how time is shown on the payroll reports.  In 3.0.33, we made a couple fixes and cleared up some of our verbage.  If these things are things you would use or need, you should upgrade.