roadmap.md

description	GeoZarr V1 release roadmap — three milestones targeting OGC Architecture Board review by summer 2026.

V1 Roadmap

The SWG approved a V1 roadmap at the February 2026 meeting. The target is OAB review by summer 2026.

GeoZarr V1 is built on three modular, composable Zarr conventions:

Convention	Repo
proj (proj:)	zarr-conventions/proj
spatial (spatial:)	zarr-conventions/spatial
multiscales	zarr-conventions/multiscales

Milestone 1: Release Candidate

All content complete and ready for formal review. No new features after this point.

Exit Criteria:

• All three conventions finalized
• Conformance classes defined
• Normative language (RFC 2119) applied throughout
• JSON Schemas stable and validated
• At least 3 implementations documented (Candidate maturity)
• Code owner designated for each convention
• Test dataset suite available
• Documentation complete (quickstart, composition guide, compatibility matrix)

Milestone 2: Architecture Board Review

Target: Summer 2026

Submit to OGC Architecture Board for technical review and public comment.

Exit Criteria:

• Spec document in OGC format
• Public comment period completed (30–60 days)
• Comments addressed

Milestone 3: SWG Vote

Final SWG vote for adoption as OGC Standard.

Exit Criteria:

• OAB review complete
• SWG vote passed
• Release artifacts published
• All conventions at Candidate maturity (3+ implementations)

Post-V1

Deferred to future releases:

• Linked datasets convention (multi-variable relationships, heterogeneous coordinates)

Progress Tracking

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View the full GitHub Project Board for details.