Hi Hans, Font expansion (hz) seems to be enabled by default with the latest upload. If I compile this document locally with ConTeXt "2022.11.18 13:22": \showframe % \definefontfeature[default][default][expansion=quality] % \usetypescript[modern-base] % \setupbodyfont[reset,modern] % \setupalign[hz] \starttext Hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello. \stoptext I get slightly different spacing than I do when I compile the same document on live.contextgarden.net. If I compile the document with the lines uncommitted on live.contextgarden.net, I get the same results as I do on my local installation with the lines commented. Personally, I think that enabling hz expansion by default is probably a good thing, but this change will affect a very large number of documents and you never mentioned it in the announcement email, so I suspect that it was accidentally added when you added the math hz. Thanks, -- Max