I assume luatex experimental, because luatex trunk is still with poppler .
# luatex --credits
This is LuaTeX, Version 1.09.0 (TeX Live 2018)
The LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater, Luigi Scarso.
LuaTeX merges and builds upon (parts of) the code from these projects:
tex : Donald Knuth
etex : Peter Breitenlohner, Phil Taylor and friends
omega : John Plaice and Yannis Haralambous
aleph : Giuseppe Bilotta
pdftex : Han The Thanh and friends
kpathsea : Karl Berry, Olaf Weber and others
lua : Roberto Ierusalimschy, Waldemar Celes and Luiz Henrique de Figueiredo
metapost : John Hobby, Taco Hoekwater, Luigi Scarso, Hans Hagen and friends
pplib : Paweł Jackowski
fontforge : George Williams (partial)
luajit : Mike Pall (used in LuajitTeX)
Compiled with libpng 1.6.34; using 1.6.34
Compiled with lua version 5.3.4
Compiled with mplib version 2.00
Compiled with zlib 1.2.11; using 1.2.11
Development id: 6832
I have installed context with first-setup.sh, as usual.
# context --version
mtx-context | ConTeXt Process Management 1.02
mtx-context |
mtx-context | main context file: /opt/context/experimental/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context | current version: 2018.06.25 12:21