Sure, that's a reasonable question.
The idea is that if we were to make more than one change in a year, you can choose to swap after the first one, or wait till the 12th month and get the aggregate of all changes during that year.
Absent the qualifier, some might presume you could swap it ten times if we made 10 changes. While common sense would suggest this is not the case, it doesn't hurt to spell it out.
Elsewhere, someone suggested that we'd intentionally hold back release as some sort of secret plot to deny folks their opportunity to swap. By this logic, we could somehow obviate all future ideas for changes by delaying release interminably to continue to improve it. That's a somewhat tortured cascade of assumptions.
A dash of Occam's Razor would help here. The simpler, (and actual) explanation for our extra work is to build it well so folks love it from the start.
TextBlade took some years to think through and develop, and we don't have plans to change it. But we may learn things and deploy changes in the next 12 months, and if so, all our preo-order customers will have a right to a free swap to have them.
It's a really exceptional guarantee, and it was meant to be.