diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdd2e0026..109ca12e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,22 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Added
+- ObserverSnapshot v6 wire protocol (#449) — player_stance (MovementStance) and player_inventory (Vec\<InventoryItem\>) fields with serde defaults for backward compatibility
+- Stance system (#417) — Sprint/Walk/Careful/Crouch movement stance with tick-based speed (1/2/3/4 ticks per move), monologue rate multipliers (40%/100%/150%/100%), PlayerMoveCooldown component, ToggleStanceUp/Down player actions
+- TilePresence posture layers (#420) — Standing/Prone/Seated/Fixture occupancy layers enabling same-tile coexistence (e.g. seated NPC + standing player), layer-based collision in validate_movement
+- ObjectType component (#421) — Readable/Container/Terminal/Door/Pickup/Furniture types with Phase 1 verb sets computed from type + proximity range
+- Phase 2 verb filter (#422) — KG-gated observer-side verb processing: POI priority flips (D-060), Confront injection at KnowsDetails+ confidence, contradiction marking, archetype-specific label relabeling (Smuggler sees Move/Stash, Detective sees Scan/Flag on containers)
+- CharacterArchetype component — Smuggler/Detective archetype for Phase 2 verb label differentiation (D-057)
+- VerbKind::Confront — Phase 2 only verb injected when observer has KnowsDetails+ on an NPC at close range
+
+### Changed
+- Protocol version bumped from 5 to 6 (stance, inventory, ObjectType, verb system fields)
+- MessagePack fixtures regenerated for protocol v6
+- Input processing queries expanded for stance and cooldown components with backward-compatible Option wrapping
+- Observer pipeline queries expanded for Stance and CharacterArchetype components
+- NearbyInteraction carries object_type and contradicted fields for Phase 2 context
+
 ### Added
 - D-066: Dual-scale grid — 0.5m simulation tiles for stealth granularity, 1m visual tiles for proportional art (2x retina factor). All world geometry 2x2 sim tile minimum so cover/LOS maps 1:1 with visuals. Amends OQ-01.
 - Sprint CLI (`db/connectors/sprint`) — unified sprint lifecycle management with 5 subcommands: status, start, stop, start-work, prepare. Auto-detects sprint from DB state and team from git branch. Guards prevent activating unplanned sprints.