This is the Q1 data release: https://www.cosmos.esa.int/web/euclid/euclid-q1-data-release This paper gives an overview: https://pubs.euclid-ec.org/public/coordinated_release/aussel... See figure 4 for an overview of the data processing.

The “non-quick” Data Release 1 is planned for October 2026: https://euclid.caltech.edu/page/data-release-timeline