# Changelog

## [0.5.0] - 2026-03-09

### 🚀 Features

- **`FrameType::Auth`** (0x0F) — new frame type for authentication handshake
- **`AuthPayload`** struct — phase, nonce, token with encode/decode
- **`scramble_payload`/`descramble_payload`** — XOR obfuscation with repeating key
- **`RecordingMetadata`** struct — 24-byte header (version, created_at, duration_ms, frame_count, width, height)
- **`auth_challenge_frame`/`auth_response_frame`** — auth handshake frame builders

### 🧪 Tests

- 4 new tests: auth payload roundtrip, XOR scramble, recording metadata, auth frame builders

## [0.4.0] - 2026-03-09 — AudioFormat, AudioHeader, AdaptiveQuality, BandwidthEstimator
## [0.3.0] - 2026-03-09 — CompressedPixelFormat, RecordingWriter/Reader, compressed_pixel_frame
## [0.2.0] - 2026-03-09 — StreamParser, Ack/AckEvent, compression_ratio
## [0.1.0] - 2026-02-26 — Initial release
