/**
* This format is not compatible with ISO-8601, but is left this way for backward compatibility reasons.
* Use DateTime::ATOM or DATE_ATOM for compatibility with ISO-8601 instead.
* @since 7.2
* @deprecated
*/
public const ISO8601 = 'Y-m-d\TH:i:sO';
which is being used right now in propel.
We should be using *ATOM then then as suggested instead.
which is being used right now in propel.
We should be using
*ATOM
then then as suggested instead.