Initially, Kowalczyk did not release a 64-bit version of Sumatra, indicating that while it might offer slightly more speed and available memory, he believed at that time that it would greatly add to user confusion and that the benefits would not outweigh the potential costs.
Kowalczyk起初没有发布Sumatra的64位版本，指出这可能要求明显更快的速度及更多可用的内存，当时他相信这会加大用户的顾虑而且不大于潜在的成本效应。