Ring – Decentralized, Free, Multi-Device Communication

There was a new release recently: https://lists.gnu.org/archive/html/info-gnu/2016-11/msg00001... Also they joined the GNU project: https://blog.savoirfairelinux.com/en-ca/2016/ring-official-g...

Last time I checked, offline message (storage) was not implemented. Is there progress on this?