# Legacy Archive

This section tracks documentation paths that remain in-tree for compatibility but are no longer part of the canonical Truthound 3.0 reading path.

Policy:

- Canonical 3.0 docs live in the main MkDocs navigation.
- Legacy guides may remain reachable through compatibility stub pages and direct links.
- Internal docs links should target canonical pages or explicit legacy pages directly, not historical aliases.

If you arrived here from an older bookmark, start with:

- [Architecture](../concepts/architecture.md)
- [Reporter SDK](../guides/reporter-sdk.md)
- [Checkpoints](../guides/checkpoints.md)
- [Migration to 2.0](../guides/migration-2.0.md)
- [Migration to 3.0](../guides/migration-3.0.md)
