Hi, Luigi and I are currently looking into Lua 5.3 in combination with LuaTeX. We have an experimental setup and all seems to work well, which given the new number model of Lua is good news. Depending on how we compile the binaries we either gain some speed or in the worst case loose half the performance but that will be sorted out one of these days as we know where to look. For most users the consequences will be minimal but for those who use a lot of Lua it makes sense to keep an eye on the subtle differences between 5.2 and 5.3 which is why I post this. For TeXLive we don't expect the switch before 2019 (so 2018 will ship two binaries with the 5.2 one the official one) but for the context distribution we will make the switch earlier so that we can test in real situations. 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 -----------------------------------------------------------------