https://owncloud.com/news/infinite-scale-release/
https://owncloud.com/infinite-scale/

Here is a brief overview of what is available with this release:

The Infinite Scale backend, a brand new architected backend component for file sync and share and content collaboration.
Written in Golang following a microservices architecture paradigm. Based on REVA 1, a collaboration platform maintained by the CS3 community which we are proudly part of.
A brand new web client 4 based on vue.js following latest design and UX principles. Slim, efficient to use and fully accessible.
Fully compatible desktop-, iOS- and Android clients (soon) which support Infinite Scale features and ownCloud 10
Multiple deployment models for the backend from simple single binary deployment 1 via docker to scaling setups in modern cloud infrastructure
Complete new admin documentation 7


https://central.owncloud.org/t/owncloud-development-roadmap-future-of-owncloud-classic-versus-ocis/37633

fr :
https://www.nextinpact.com/news/99045-owncloud-9-0-est-disponible-collaboration-et-evolutivite-ameliorees.htm

(je suis passé en 8.1)