Security status of Aurora

Hi,

The announcement about dropping Aurora said: "Between April and June, 
Firefox Aurora on Desktop (54) will continue to receive updates for 
critical security issues". Aurora is still a version from 2017-04-18. 
While a day later Firefox 53 was release with a whole batch of security 
fixes. Can someone confirm that all those are also fixed in Aurora?

There was also a release on the 5th of May, but it's "only" high. Is 
that expected to get fixed in Aurora?


Kurt