The siunitx package seems to have deprecated the group-four-digits option. There is compatibility code, however that only works if the option is explicitly set by group-four-digits=true. Thus, the compilation breaks as described in #139. As the option is mapped to group-minimum-digits=4 internally, I would use that option in config.tex.
This is a fix for #139.
The siunitx package seems to have deprecated the
group-four-digitsoption. There is compatibility code, however that only works if the option is explicitly set bygroup-four-digits=true. Thus, the compilation breaks as described in #139. As the option is mapped togroup-minimum-digits=4internally, I would use that option in config.tex.