# Changelog

## [0.16.0] - 2026-03-10

### Added
- **Deterministic seed** — `set_seed(u64)`, `world_checksum()` for sync validation
- **Collision manifolds** — `get_contact_manifolds()` → flat [bodyA, bodyB, normalX, normalY, depth]
- **Distance constraint** — `add_distance_constraint(a, b, length)` via Rapier joints
- **Hinge constraint** — `add_hinge_constraint(a, b, anchor_x, anchor_y)` revolute joint
- 4 new tests (81 total)

## [0.15.0] — Event hooks, transform hierarchy, physics timeline
## [0.14.0] — Proximity queries, physics regions
## [0.13.0] — Replay, binary serialize, hot-swap
