diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06d62bd1c..bf61d506c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,20 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Added
+- Cognitive delay system (#423, D-060) — CognitiveDelay component buffers perception events before emitting KnowledgeEvents (0.6s base / 0.3s urgent at 10 tps), pending_recognitions in ObserverSnapshot v7 for client fog entity visualization, cancellation on entity LOS exit
+- ListeningFocus eavesdrop system (#426, D-053) — stationary_ticks tracking for eavesdrop positioning bonus, 30-tick threshold (20 for Careful stance), Sprint blocks accumulation, registered after validate_movement
+- YAML content loader with hot-reload (#326, D-028) — LinePool system parsing dialogue/monologue YAML into BTreeMap-indexed pools, 4-layer query filtering (access > situation > trust > topic+mood), timestamp-polling hot-reload (dev-only), graceful failure preserves previous content
+- Line pool format specification (#308) — formal spec at docs/architecture/line-pool-format.md defining YAML structure, tag enums, 4-layer filtering pipeline, prerequisite-to-KG mapping, ID format, and Rust loader interface
+- InteractionMemory KG schema design (#442, D-064) — design doc at docs/architecture/interaction-memory-schema.md extending FactKnowledge with interaction tracking, 5-state InteractionState enum, monologue prerequisite extension, NpcTolerance reconciliation
+
+### Changed
+- Protocol version bumped from 6 to 7 (pending_recognitions field in ObserverSnapshot)
+- MessagePack fixtures regenerated for protocol v7
+- Monologue trigger system uses .values() iterator (clippy fix)
+- Monologue schema: relationship prerequisite now requires target and state fields
+- 389 tests total (70 new) — cognitive delay pipeline, line pool loader, ListeningFocus, content watching, serialization
+
 ### Added
 - Client protocol v6 bridge — decode player_stance (4 variants) and player_inventory from ObserverSnapshot, TOGGLE_STANCE_UP/DOWN input actions, 25 gdUnit4 tests
 - Three-scope z-layer rendering pipeline (D-049) — world z:0-900 inside CanvasGroup, insert overlay CanvasLayer 10, UI CanvasLayer 20, modal CanvasLayer 30. Y-sort contract enforced, reserved VFX/airborne/lower-floor ranges documented