Where Extended Matrix lives.
News, two recurring meetings, two chat channels, one issue tracker. Everything is open — drop in, ask questions, share work.
Latest news
Short posts about releases, milestones, EU-project news and other day-to-day community signal. The full archive lives at /news.
- 4 Jun 2026
Two community meetings in June: EM Hour (11th) and Dev Meeting (23rd)
Recurring meetings calendar reopens after EM 1.5 LTS: EM Hour on the 11th (community happy hour) and Dev Meeting on the 23rd (public coordination). Both on Teams in the browser — no Microsoft account needed; please use your real name when joining.
- 2 Jun 2026
EM 1.5 is out
EM 1.5 ships with Landscape mode, CronoFilter, the new TSU vocabulary, an LTS commitment, and a refreshed EM Tools manual — the result of two years of work and the launchpad for the StratiGraph 1.6 cycle.
- 2 Jun 2026
Extended Matrix at the heart of European projects
EM is now a building block of the StratiGraph European project — funded by the European Commission and contributing to the European Collaborative Cloud for Cultural Heritage (ECCCH).
- 2 Jun 2026
extendedmatrix.org, refreshed
A redesigned home for the Extended Matrix ecosystem: clearer onboarding, the 1.5 stable line front and centre, an open 1.6 development track, and a tighter window onto the StratiGraph European project.
- 8 Sept 2025
EM at DH 2025
Extended Matrix presented at the Digital Humanities 2025 conference — talks, posters and discussions on the StratiGraph trajectory.
Conferences, bazaars & talks
Yearly gatherings — EM Conference for users, EM Bazaar for developers — plus talks and workshops at partner venues. Recordings, slides and programmes are kept on each event page.
- Talk 8 Sept 2025
EM at DH 2025
Digital Humanities 2025 conferenceExtended Matrix presented at the Digital Humanities 2025 conference — talks, posters, and discussions on the StratiGraph trajectory, the CIDOC-CRM alignment, and the role of EM in the European Collaborative Cloud for Cultural Heritage.
- Conference 11 Apr 2024
EM Conference 2024
Rome, ItalyFirst Extended Matrix Conference — talks, workshops and a community gathering devoted to the formal language and the framework around it. The user-facing counterpart of EM Bazaar.
▶ recordings - Bazaar 21 Apr 2022
EM Bazaar 2022
Rome, ItalyEM Bazaar — the developer-focused gathering of the Extended Matrix community. Demos, code sessions, architecture discussions, and a look at what was coming next in the framework.
▶ recordings
EM Hour
The Extended Matrix Happy Hour — recurring informal session every Thursday at 17:30 CET. Open chat, screen shares, demos, "what are you working on this week?".
Upcoming
- Thu, 11 June 202614:00 · 60 min
EM Hour — first community happy hour
The first Extended Matrix community happy hour — Wednesday June 11, 16:00–17:00 CET, on Microsoft Teams. Open chat about the brand-new EM 1.5 LTS, the redesigned extendedmatrix.org, the StratiGraph EU project, and what the community is building right now.
Host: Emanuel Demetrescu Join meeting →
Development meetings
Monthly public coordination for the codebase. Open by default, notes-first, decisions are recorded so direction stays transparent — especially as more contributors arrive with AI-assisted workflows. Each meeting has its own page with TL;DR, attendees, decisions and action items; async agenda gathering happens on the Meeting Notes discussion category on the dev-site repo.
Upcoming
- Tue, 23 June 202613:00
Dev coordination — June public sync
First public dev meeting of the post-1.5 cycle. EM 1.5 LTS shipped, PR #28 (Postgres pyArchInit backend) merged, DP-61 (Mappings Registry) on the table. Open floor on Sub-3 timing and how to contribute.
Past meetings
- Fri, 15 May 2026
Want to host a session, propose a topic, or just listen in? Say hello on Telegram →