[tex-live] BibLatex issues after last upgrade

Ken Brown kbrow1i at gmail.com
Wed Mar 9 00:44:02 CET 2016

On 3/8/2016 5:13 AM, Angelo Graziosi wrote:
> This morning I did a TL-2015 upgrade but some documents do not build any
> more. For example:
> $ latexmk -pdf solutio_majorana
> [...]
> (/opt/texlive/texmf-dist/tex/latex/biblatex/bbx/authoryear.bbx
> (/opt/texlive/texmf-dist/tex/latex/biblatex/bbx/standard.bbx))
> (/opt/texlive/texmf-dist/tex/latex/biblatex-philosophy/philosophy-standard.bbx
> ! Undefined control sequence.
> l.1597 \ifblx at load@version at one

Hi Angelo,

The problem seems to be that \ifblx at load@version at one was renamed to 
\ifblx at load@version at legacy in biblatex-3.3.  This happened in commit 
09f8438 in the biblatex git repo, which did a lot of renaming.  Phil, 
did you intend to keep the old names as legacy aliases?


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