cannot pass pdftitle in square brackets: LaTeX Error: Encoding scheme `PU' unknown

[stuart-little]

I have a vanilla install of TeX Live 2020, with up-to-date hyperref as of 2021-02-10. With the latest update the following short document produces an error:

\documentclass[11pt]{article}
\usepackage[pdftitle={}]{hyperref}

\title{}
\begin{document}
\maketitle
\end{document}

The error is as in the title of this issue:

ERROR: LaTeX Error: Encoding scheme `PU' unknown.

I can get it to compile fine if I pass the option separately, after the usepackage command:

\documentclass[11pt]{article}

\usepackage{hyperref}
\hypersetup{pdftitle={}}

\title{}
\begin{document}
\maketitle
\end{document}

[u-fischer]

Yes, sorry, I know that already and will upload tomorrow the fixed version.

[stuart-little]

Thanks!

For what it's worth: pdftitle is not the only culprit; I've had pdfproducer behave identically.

In any case, I suppose it's one problem that the update will fix in one go.

[u-fischer]

This has been resolved with todays update. (7.00j)