Their blog entry for 2020-11-30 states in part: > This will mark the 18th consecutive year that OTS has provided updated tax programs. Given this implies the

Their blog entry for 2020-11-30 states in part: > This will mark the 18th consecutive year that OTS has provided updated tax programs. Given this implies the first version was 18 years ago, the choice of using C might not, at that time, have seemed as odd as it does now in 2021.