- Bump PROTOCOL_VERSION 14 → 15 for save_result field addition - Add tracing::warn on SaveLoadPending command overwrite (double-tap F5) - Add tracing::warn on KnowledgeGraph::new() fallback during save - Fix misleading WouldBlock comment in tcp.rs - Document SimSpacePressure.active_count pre-eviction timing - Document entity-based eviction tie-breaking non-determinism - Add ScopePinned eviction survival regression test - Regenerate msgpack fixtures for protocol v15 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>