Dear all,

> [..]
> Change:
> I suggest that we start using the date format yyyy-mm-dd
> for all dates in package.mask
> starting with 2019-07-01
> [..]

Thank you for your quick responses.
package.mask uses now ISO 8601 dates.

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c621d104eb258b5fc4b05dfb9940bc26cab7f959

-- 
Best,
Jonas