Hello,
Following a standalone context update, all files that use the pgfplots
module produce the following error message :

tex error       > tex error on line 85 in file /home/fab/ntg77.tex: ! You
can't use `the character 7' after \the

<inserted text> 7

\pdflastobj ->\pdffeedback lastobj

<argument> /pgfpat4\space \the \pdflastobj
                                \space 0 R
\pgf@sys@pdf@pdfbackendset@one ...o \noexpand #1#2
                                                  \relax }
<argument> ...pattern@instantiate@north west lines\endcsname
                                                  \expandafter \global
\expa...
\pgfutil@secondoftwo #1#2->#2

...
l.85 \stopaxis

Thanks
fabrice