Hello, compiling a LuaLaTeX document with rev. 20998 of expl3 results in the error: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! This is a LaTeX bug: check coding! ! ! Command `\lua_shipout_x:n' not yet defined! ! ! See the LaTeX3 documentation for further information. ! For immediate help type H <return>. !............................................... l.68 \cs_generate_variant:Nn \lua_shipout_x:n { x } in the file l3luatex.sty; probably because \latelua is not enabled by default. Regards, Philipp