Q:

numeric undefined in datetime2 package

I ran into a weird problem with the \usepackage{datetime2} (with datetime2-english installed). When I run the following code
\documentclass{article}
\usepackage[UKenglish]{babel}
\usepackage[useregional=numeric]{datetime2}
\DTMlangsetup[en-GB]{datesep={\space\&,\&\space}}
\begin{document}
\today\\
\DTMdisplaydate{2000}{01}{01}{}
\end{document}

the date is typeset correctly in both cases (i.e. with the datesep intentionally set to weird values [' &,& '] for demonstration purposes). This shows me, that the en-GB-numeric style seems to be used correctly. Nevertheless, I get three errors
! Package datetime2 Error: Unknown style `en-GB-regional'

and nine warnings
Package datetime2 Warning: No date style `en-GB-regional' defined on input line[...]

The same is true for en-US. However, in both cases there is absolutely no problem when I set useregional=text. Am I doing something wrong or is this a bug?

A:

It turned out that this was truly a minor bug. It has now been fixed in v. 1.01 of datetime2-english.
Bug Report

