When updating my LMTX installation today, I got this: tex error > tex error on line 179 in file /home/conrado/Apps/lmtx/tex/texmf-context/tex/context/base/mkiv/strc-flt.mkvi: ! Undefined control sequence <argument> \c!compressdistance =\emwidth \mult_interfaces_get_parameters_item ...2->\if ,#1 ,\expandafter \mult_interf... \mult_interfaces_get_parameters_indeed ...tem #1,] , \setup_float ...es_get_parameters {\??float :}[#1] \the \everysetupfloat \fi ... <to be read again> \syst_helpers_double_empty_two_nop \par l.179 169 \c!bottomoffset=\zeropoint, 170 \c!freeregion=\v!yes, 171 %\c!local=, 172 %\c!bottombefore=, % e.g. \vfill 173 %\c!bottomafter=, 174 %\c!default=, % default location 175 \c!sidethreshold=.5\strutdp, % set to "old" to check with old method 176 \c!numbering=\v!yes, 177 \c!compress=\v!yes, % when possible pack floats when flushing 178 \c!compressdistance=\emwidth] 179 >> 180 \setupfloatframed 181 [\c!frame=\v!off, 182 \c!offset=\v!overlay, 183 \c!strut=\v!no] 184 185 \appendtoks 186 \doifelse{\floatparameter\c!compress}\v!yes\settrue\setfalse\c_page_floats_pack_flushed 187 \d_page_floats_compress_distance\floatparameter\c!compressdistance\relax 188 \to \everysetupfloat 189 The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., '\hobx'), type 'I' and the correct spelling (e.g., 'I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. Seems to affect the floats mechanism. Andrés Conrado Montoya http://chiquitico.org