biblatex fails to patch the latest \MakeUppercase / \MakeLowercase

[David Carlisle]

yes, sorry about the inconvenience, see

https://github.com/plk/biblatex/pull/1233

an update to biblatex has already been submitted, and we are working on a
longer term fix,

as an immediate workaround you can add

\def\blx at err@patch#1{}

to avoid the error.



On Sun, 3 Jul 2022 at 14:45, Robert Alessi <alessi at robertalessi.net> wrote:

> Dear all,
>
> With the latest update of latex, biblatex now returns the following
> errors:
>
> ! Package biblatex Error: Patching \MakeUppercase failed.
>
> ...
>
> ! Package biblatex Error: Patching \MakeLowercase failed.
>
> which does not happen if I use latex-dev.
>
> Robert
>
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