Disclaimer: I know nothing about devanagari, I can only describe changes visually ... I installed yesterday the newest context, and one of my examples of devanagari is now missing an "accent". I'm rather confident that the output was different before the update as I made screenshots when testing this with luaotfload. The affected font siddhanta can be found here http://svayambhava.blogspot.com/p/siddhanta-devanagariunicode-open-type.html Screenshots and code that show the difference and the missing accent in the xelatex and context output are in this comment https://github.com/u-fischer/luaotfload/issues/9#issuecomment-431288932 the older (perfect) output is in a comment above https://github.com/u-fischer/luaotfload/issues/9#issuecomment-426978522 -- Ulrike Fischer https://www.troubleshooting-tex.de/