Side-by-side examples for migrating from deprecated Letta API and SDK surfaces to the Letta Agent SDK.
- Filesystem folders to repositories
- Python server PostgreSQL agents to the local App Server
- Cloud agent backup and fresh-agent restore (settings and Git memory restored; saved messages kept for reference)
API guides keep the v1 and v2 implementations close together so behavior can be compared directly. State migrations include a runnable skill and validation scripts.