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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.3.0 - 2026-01-25

Added

  • QUIC-native media transport: All media now flows over QUIC streams instead of separate ICE/UDP connections
  • QuicMediaTransport for unified media transport over ant-quic connections
  • QuicMediaStreamManager for managing multiple concurrent media streams with QoS
  • Stream multiplexing with dedicated streams per media type (Audio 0x21, Video 0x22, Screen 0x23, RTCP 0x24, Data 0x25)
  • MediaCapabilities struct for capability exchange replacing SDP
  • initiate_quic_call() and confirm_connection() for QUIC-native call setup
  • exchange_capabilities() for negotiating media parameters
  • TrackBackend trait for polymorphic track implementation (QUIC or legacy WebRTC)
  • QuicTrackBackend for QUIC-based media tracks
  • quic-native feature flag (default) for QUIC-only builds
  • legacy-webrtc feature flag for backward compatibility
  • Stream priority system: Audio/RTCP (high), Video (medium), Screen (low), Data (best effort)
  • Comprehensive documentation: Migration Guide, Stream Multiplexing Architecture

Changed

  • Upgraded ant-quic from 0.10.3 to 0.20.0
  • Media now shares the same QUIC connection as signaling (single NAT binding)
  • Call struct now includes QuicMediaTransport alongside legacy RTCPeerConnection
  • CallState transitions updated for QUIC flow
  • SignalingTransport extended with get_quic_connection() for connection sharing

Deprecated

  • create_offer() - Use exchange_capabilities() instead
  • handle_answer() - Use confirm_connection() instead
  • add_ice_candidate() - Not needed for QUIC calls
  • start_ice_gathering() - Not needed for QUIC calls
  • LegacyWebRtcBackend - Use QuicTrackBackend for new code
  • MediaStreamManager::new() - Use MediaStreamManager::with_quic() instead
  • AudioTrack::with_webrtc() - Use AudioTrack::with_quic() instead
  • VideoTrack::with_webrtc() - Use VideoTrack::with_quic() instead

Removed

  • STUN/TURN server requirements (ant-quic handles NAT traversal natively)
  • Duplicate NAT traversal (no more ICE + QUIC parallel paths)

Fixed

  • Call state machine tests for QUIC-native flow
  • Integration tests for loopback media routing
  • RTP bridge tests for stream multiplexing

Migration

See MIGRATION_GUIDE.md for detailed migration instructions from v0.2.1.

0.2.1 - 2025-12-15

Added

  • Initial dual-transport architecture
  • WebRTC-based call management
  • Signaling over ant-quic
  • Media over webrtc crate ICE/UDP

Known Issues

  • Duplicate NAT traversal (both ant-quic and webrtc-ice)
  • Media flows over separate UDP sockets (not QUIC)
  • Requires STUN/TURN servers for NAT traversal