[PATCH v2] NEWS: mention more recent developments

[Florian Weimer]

* Andreas K. Hüttel:

> diff --git a/NEWS b/NEWS
> index e1c1db284a..ca81dedc6a 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -27,10 +27,13 @@ Major new features:
>    been imported from the CORE-MATH project, in particular cosh, sinh, and
>    tanh.
>  
> -* The SVID handling for cosh and sinh were moved to compat symbols, allowing
> -  improvements in performance.
> +* Many additional improvements to existing functions have been synchronized
> +  from the CORE-MATH project.
> +
> +* assert is now supported as a variadic macro for C++26.

What about this instead?

* For C++26, the assert macro now accepts arguments that contain commas
  which are not nested in parentheses.

>  
> -* New locale added: hrx_BR (Hunsrik language spoken in Brazil).
> +* The SVID handling for cosh and sinh was moved to compat symbols, allowing
> +  improvements in performance.

Maybe: SVID [error] handling

Thanks,
Florian