Hi We currently have mkii : which uses pdftex/xetex mkiv : which uses lua(jit)tex 1.10 and next year we will also have lmtx : which runs luatex functionally there is no difference between mkiv and lmtx but there are some diferences under the hood. It might also turn out to be a bit more efficient (at least this is what experiments here indicate). The lmtx version is part of a "long term stability" approach and it will probably take some time (and esp testing) to reach that goal. When experiments work out well, the next context meeting will be showtime. One of these days I will ask context dev to test this version because decisions have to be made on how to roll this out. The reason that I mention this development is that in upcoming beta releases one can run into (not that dramatic, easy to fix) issues related to reshuffing some code. I might also involve users who (I know) runs massive amounts of complex documents. Because there is no functional change there are no consequences for daily use of context. However, there can be additional functionality at some point. So, from the users perspective lmtx is just mkiv, but in some places it will identify itself as lmtx (which is handy for checking). Hans -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------