ZIPmagic was offered in the past with an annual maintenance option. ZIPmagic aggressively updates its product to add more and more compelling features each year; to give you a brief overview of the new features that were added in 2014:
64-bit file compression
Full Unicode support in file compression
WIMBoot based disk compression
Major upgrade to NTFS based disk compression
Data deduplication based disk compression
Compare this with tools like WinZip and WinRAR, and it is easy to see how our maintenance plan is justified.
However as a promotion, we have currently removed selling the maintenance plan. This does not mean future upgrades will always be unconditionally free (i.e. we won't pull a WinZip on you - when Corel bought WinZip, they suddenly started charging lifetime customers for upgrades that were supposed to be free, for ever).
There are currently no plans to revamp the serial generation algorithm and to require current users to upgrade. However, based on the future evolution of the tool, we may do this; at that point we will offer all our current customers with very affordable maintenance (it was selling for $9.95 before being removed as part of our current promotion).
Either way, the version you purchase today will work perpetually (and it does not require online activation at all). So you may order in confidence
And rest assured that if we do charge you for an upgrade, it is because we've really done so much work, as to justify the upgrade. It will never be mandatory and you can always use your current version perpetually.