# Biblatex 2.1 bug [closed]

After updating my texlive 2012 installation using tlmgr update --all --self the biblatex was updated to version 2.1 and biber to version 1.1. Now I cannot compile my document. I get the following error:

compiling main.tex...
/usr/local/texlive/2012/texmf-dist/tex/latex/biblatex/biblatex.sty:86: Missing number, treated as zero.
/usr/local/texlive/2012/texmf-dist/tex/latex/biblatex/biblatex.sty:86: Missing = inserted for \ifnum.
/usr/local/texlive/2012/texmf-dist/tex/latex/biblatex/biblatex.sty:86: Missing number, treated as zero.
/usr/local/texlive/2012/texmf-dist/tex/latex/biblatex/biblatex.sty:86: Missing \begin{document}.
main.tex:268: Missing number, treated as zero.
main.tex:268: Missing = inserted for \ifnum.
main.tex:268: Missing number, treated as zero.
main.tex:268: Missing \begin{document}.
main.tex:704: Missing number, treated as zero.
main.tex:704: Missing = inserted for \ifnum.
make: *** [pdf] Error 1


With the previous version everything was ok!

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## closed as too localized by lockstep, Joseph Wright♦Aug 30 '12 at 21:29

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Known, passing, bug in biblatex as released to CTAN: github.com/plk/biblatex/issues/25. This should be fixed in TeX Live and MiKTeX within a few days. –  Joseph Wright Aug 5 '12 at 18:30
You can download from SourceForge and manually install if you need to. –  PLK Aug 5 '12 at 18:37
@Joseph: miktex drags behind currently regarding updates. Its biblatex is still 2.0 and so not affected. –  Ulrike Fischer Aug 6 '12 at 7:29