Dear list, I think I stumbled into a bug in the latest beta. When using Minion Pro, ConTeXt changes a colon to an apostrophe. A minimal example: \definefontfamily [mainface] [rm] [Minion Pro] \setupbodyfont[mainface, 12pt] \starttext a: b \stoptext I think this was introduced so long ago. I do not track all the updates, but I update fairly regularly, and one of my older installs did not have the bug in question. Also TeXLive 2015 gets it right. Michal