# Snapshot and manifest migrations

## 0.1 — frozen 2026-10-12

This is the first supported `schemaVersion`. The seed draft omitted `claims`, required relation `sourceRefs`, manifest `schemaVersion`, `relationLabels`, and `factPolicy`. Those documents were edited in place. There is no 0.0 reader.

`content_explorer.contract.SUPPORTED_VERSIONS` accepts only `0.1`. A document with any other version fails validation. A later version must add a named migrator, for example `migrate_0_1_to_0_2`, and must not guess missing rights or claims.

Display text on an entity is not a second source of truth. A `tldr` claim with `status: asserted` is the statement the renderer prefers to show. `status: unknown` records that the field was considered and is not known.