On Thu, 29 Jul 2021 at 11:22, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> Personally, I would have written this as just "up to date", I don't
> think the hyphens are required.
>
FWIW Mirriam-Webster and the CED suggest "up-to-date" when before a noun,
so the changes should be "up-to-date answer" but "are up to date".
https://dictionary.cambridge.org/dictionary/english/up-to-date
Geoff