BaccaConnect

Engine

v2.3.200 July 26, 2026

• Fixed two crashes when connecting through a TURN relay, and a stall where audio stopped arriving for several minutes mid-session
• Fixed silent sessions on multi-channel interfaces: audio is now read correctly from devices that group channels into a single buffer
• Sessions that cannot establish a relay path now fail quickly with a clear reason, instead of appearing connected while passing no audio

v2.3.100 July 24, 2026

• Incremental engine improvements. Detailed notes were not recorded at release time.

v2.3.0 April 14, 2026

• Lower, steadier latency: the audio path no longer takes locks, removing a source of intermittent dropouts
• More accurate clock-drift correction between the two ends of a session
• iPad sessions now recover cleanly when the device wakes from sleep
• Connection quality profiles now account for which peer you are connecting to, not just the connection type

v2.2.0 April 13, 2026

• Tuning Lab: admin tools for live audio engine parameter tuning during sessions
• Adaptive connection profiles: automatic buffer sizing optimized per connection type (LAN, direct, relay)
• Network simulation: inject artificial impairments for stress testing and quality optimization
• Internal codebase restructure for clarity and maintainability

v2.0.5 April 9, 2026

• Decoupled network channel count from hardware — iPhone stereo mic and iPad mono mic can now connect without packet size mismatches
• Decoupled network buffer size from hardware — macOS (RME at 512) and iPad (256) can connect; CoreAudio while-loop chunks hardware buffers into network-sized packets
• BaccaPatch is now transport-only: network channel count and buffer size are session parameters (set by the studio), never overridden by hardware
• Audio interfaces adapt locally: zero-pad input channels beyond hardware, discard output channels beyond hardware, chunk hardware buffers larger than network packet size
• iOS render callback: while-loop safety net handles cases where iOS delivers more frames than the session buffer size
• iOS RemoteIO configured with hardware channel counts; render callback maps hardware → network channels per chunk
• Fixed testTone WebSocket handler on both macOS and iOS agents — previously Mac→iPad test tone never enabled due to params unwrapping bug
• iOS agent: getPublicIP now uses ipify.org for IPv4 (matches macOS). Previously returned local LAN IP
• iOS agent: sessionStart returns actual AVAudioSession buffer size after configuration, not the requested value
• macOS agent: no longer bumps session buffer size to match device's current buffer — the studio's choice is passed through unchanged
• First successful end-to-end full duplex audio between iPhone ↔ iPad and macOS ↔ iPad

v1.0.61 April 6, 2026

• iOS WebSocket server via Network.framework — real-time meters and commands over wss://
• iOS Vocal Booth: local monitoring with AUv3 effects via RemoteIO
• Touch-friendly effects chain UI: 44px tap targets, inline parameter sliders
• Plugin unload crash fix: stops monitor engine before removing from audio thread
• Monitoring state preserved across page refresh
• Platform-aware dashboard: iOS shows "Connecting..." instead of macOS download link

v1.0.60 April 6, 2026

• Vocal Booth: local audio monitoring with AUv3 effects — mic to headphones, no session needed
• Seamless transition: vocal effects carry over when starting a session
• Monitor mix fader: blend studio feed with your own processed vocals (Studio ← → You)
• New BACCACONNECT_LOCAL_ENGINE flag: dev builds load plugin from DerivedData, skip auto-updater
• E2E test now covers vocal booth start/stop/meters alongside session + AUv3 tests

v1.0.59 April 6, 2026

• AUv3 plugin hosting: load, unload, bypass, and control Audio Unit effects in real time
• Plugin discovery: enumerates all installed AUv3 effects via AVAudioUnitComponentManager
• Insert effects on send or receive chain (up to 4 per chain)
• Full parameter control: read/write AU parameters via WebSocket
• Dashboard UI: plugin picker, chain list, bypass/remove controls
• Fixed CoreAudio RunLoop initialization in BaccaPatch (ADR-021) for RME USB devices
• Removed baccapatch submodule — engine is fully in-process from BaccaAudio
• License cleanup: removed all LGPL (Faust DSP) and LibreSSL references — MIT + BSD-3 only
• Plugin bundle 30% smaller (standalone binary no longer bundled)

v1.0.57 April 4, 2026

• NAT traversal: automatic STUN discovery and connectivity probing for reliable peer-to-peer connections
• Candidate exchange via signaling: both peers discover and share multiple connection paths
• Connectivity probing: tests multiple peer addresses before audio starts, first verified path wins
• TURN Worker: added JWT validation and CORS headers

v1.0.56 April 3, 2026

• Renamed JackTrip to BaccaPatch throughout the codebase — clean MIT-only fork
• Removed all LGPL Faust DSP code (compressor, limiter, reverb, meter, monitor, volume, tone)
• Rewrote StereoToMono without Faust dependency — pure C++
• Added Licenses menu item showing all open source acknowledgements
• Deleted all unused upstream code (GUI, VST3, AU, Virtual Studio, JACK, RtAudio)
• License status: 100% MIT + BSD + ISC — zero LGPL

v1.0.55 April 3, 2026

• Fixed CoreAudio initialization that caused RME Digiface AVB firmware crashes when launching audio sessions
• Added kAudioHardwarePropertyRunLoop initialization (required since macOS 10.6, missing after RtAudio removal)
• First successful end-to-end bidirectional audio session between two machines

v1.0.25 April 2, 2026

• Replaced macOS Security framework TLS with LibreSSL libtls — eliminates all keychain prompts permanently
• TLS certificate chain now includes the Let's Encrypt intermediate, fixing Safari certificate validation
• No more dependency on macOS Keychain for TLS — cert and key loaded directly from memory

v1.0.8 April 2, 2026

• Persistent logging to ~/Library/Logs/BaccaConnect/engine.log with 5MB rotation
• Shell logging for engine install, update, and launch events

v1.0.6 April 1, 2026

• Added log viewer to the dashboard — click "Show Logs" in the Audio panel
• JackTrip output and session events now stream to the dashboard in real-time

v1.0.5 April 1, 2026

• Engine update check now goes through the agent, fixing a browser security (CORS) issue that prevented the upgrade banner from appearing

v1.0.4 April 1, 2026

• Added engine update check endpoint for the dashboard
• Fixed keychain password prompt on agent restart by using a per-session temporary keychain

v1.0.3 April 1, 2026

• TLS proxy now uses a private temporary keychain — no more login keychain password dialog
• Developer ID signed and Apple notarized

v1.0.0 April 1, 2026

• Initial engine release — HTTP server, TLS proxy, audio device management, JackTrip session control
• Independent versioning from the agent shell

Agent

v2.0.26 April 10, 2026

• Re-signed under Bacca Sound's new Developer ID (Shannon Loucks) — all future releases from this team
• No functional changes to the agent shell — the heavy lifting happens in the engine plugin (see v2.0.5)

v2.0.23 April 2, 2026

• New app icon — AI-generated headphones with waveform design
• Custom menu bar icon replacing the generic system symbol
• LibreSSL TLS support (matches engine v1.0.25)

v2.0.13 April 1, 2026

• Engine is no longer embedded — downloaded from the server on first launch, keeping the agent small
• Engine version shown in the dashboard instead of the agent shell version
• Renamed "plugin" to "engine" in menus and status displays

v2.0.12 April 1, 2026

• Developer ID signed and Apple notarized — no more Gatekeeper warnings or "damaged app" dialogs
• Version number now stamped automatically during builds

Web App

v1.1.0 April 9, 2026

• Studio session parameter controls: Session Channels (1 Mono through 12 7.1.4 Atmos) and Buffer Size (64 through 1024 frames)
• Studio decides all session parameters — no client-side negotiation. Values persist to localStorage and flow through signaling to the artist
• Dynamic cache busting via Cloudflare KV: update one value with ./scripts/bust-cache.sh and all cached JS/CSS invalidates without redeploying
• Pages middleware (_worker.js) replaces 202604155191 placeholders in HTML with the current KV value, sets Cache-Control: no-cache for HTML responses

v1.0.0 April 1, 2026

• Agent detection with 3-second polling — detects install within seconds
• Agent heartbeat every 5 seconds — dashboard detects disconnect automatically
• Engine update banner with one-click "Upgrade Now" button
• Log viewer in the Audio panel — real-time JackTrip and engine output
• Optional artist selection when creating sessions
• Artists now receive signaling invites when studio goes live
• Role-based dashboards with session booking, network management, and admin tools