The signed record of every release.

The Logic layer comes online. The two modules reserved in v0.2 — Logos and Praxis — ship to MVP. Reasoning now lives inside the platform, bound to the same ontology contract as everything beneath it.

Added

• Logos (Function Studio) — MVP. Pure functions over objects, authored in Monaco and typed against the ontology. Bound to a type, a function becomes a computed property; bound to a workflow, a decision node.
• Praxis (Workflow Builder) — MVP. Triggers (object created, schedule, webhook) wired to actions, functions, and branches on a canvas. An in-process synchronous executor runs the graph; the distributed executor remains on the post-v1.0 horizon.

Changed

• The Logic layer is no longer scaffolded. Logos and Praxis are marked live across the platform surface, the docs, and the module table.

— The house

The first public-facing release of Marsovius. The platform's surface is rebranded, the module lexicon is in place across navigation, and the workspace abstraction is plumbed end-to-end. Marsovius v0.2 is the first release the house publishes by name. Earlier internal versions, under the working name ONTOS, are not catalogued here.

Added

• Marsovius rebrand. The product is Marsovius. The chrome, the docs and the public surfaces are updated.
• Greek and Latin module names applied to every navigation item — Hermes, Aqueduct, Bibliotheca, Codex, Lyceum, Forge, Eidolon, Vigil, Demos, Civitas — each paired with its English subtitle in the chrome.
• App Rail (52px) — Palantir-style left rail. Modules grouped by layer; workspace switcher at the top, user menu at the bottom.
• Workspaces (Demos). Backend table, WorkspaceProvider on the frontend, and the /w/{slug}/* URL structure. One installation, many tenants.
• WorkspacePicker and WorkspaceHome — the picker for choosing a demos, the launcher for the apps inside it.
• Stubs reserved for the modules whose implementation lands in later releases: Logos, Praxis, Atlas, Tabula, Pythia. The names are committed to the lexicon; the surfaces will follow.

Changed

• Legacy top-level routes (/home, /clevel, …) redirect into /w/{current}/.... Existing links keep working; new code uses the workspace prefix.

Sovereignty

• Apache 2.0 source remains the deployment story. No SaaS. No managed cloud. The customer hosts the platform; the house does not host customer data.

Known limitations

• Logos, Praxis, Atlas, Tabula, Pythia are scaffolded but not yet functional. The roadmap commits each to a named release.
• Pythia requires ANTHROPIC_API_KEY. Without it, the AIP endpoints return 503; every other module operates fine.
• Multi-region deployments are not supported. Single-region only through v1.x.
• Per-workspace physical data isolation — separate ontology folders, separate ClickHouse databases — is on the v0.5 roadmap. Today, the workspace boundary is a URL prefix and a column.

The next release is described in the platform's docs/ROADMAP.md. The changelog records what has shipped; the roadmap records what is next.

— The house