Debbie, it's never been the case that it's hard to upgrade.  It's very easy.  Just download the newest version and run the setup.  The next time you run OnTime, it'll upgrade your database.

There is some coordination between users needed for upgrades as everyone has to run the same version, but it's very easy to do the upgrade on an individual level.

For larger teams of say 25 or more users who have IT resources that want to automatically push updates to users, that too is possible.  David Higgens wrote a great blog post on how to automate this.