uniCenta oPOS upgrade uniCenta oPOS have so far released quite a few versions from 3.56 that I am using. They are 3.60, 3.70, 3.80/3.81, 3.90. The upgrade cannot be straight from 3.56 to 3.90. As per the release notes, it goes this way: 3.56 -> 3.60, 3.60 -> 3.70, 3.70 -> 3.90. 3.80/3.81 can be […]