# Migration from 1.1 SQLite schema and snapshot v2 remain unchanged. Both checkpoints and the topic-map contract are unchanged. Existing data and supported APIs continue to work. No automatic reindex, vocabulary merge, memory deletion or new glossary is inserted. New APIs: `remember_bridge`, `recall_grounded`, `verify_grounded`, `query`, `verify_query`, `pack_grounded`, `pack_query`, and `RecallClient`. `prepare_recall_prompt(..., grounded=True)` uses the explicit grounded read path. The default `pack_evidence` now optimizes over complete proof choices. Applications must inspect `optimization.optimal` and handle `search_exhausted` in addition to `budget_exceeded`. The packed evidence schema stays v1; selected proofs can change because shared support is now considered globally. No numeric policy is edited. Do not enable the new bridge write endpoint for unauthenticated callers. It is a normal memory-write privilege. Keep application namespaces separate to avoid silently importing one project's terminology into another.