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jam-cloud/.planning/MILESTONES.md

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Project Milestones: JamKazam Media Features Modernization

v1.6 Media Features Polish (Shipped: 2026-03-03)

Delivered: Fixed JamTrack loading sequence, window sizing, and navigation; enabled backing track sync to session screen; prevented opening multiple media players simultaneously.

Phases completed: 26-27 (5 plans total)

Key accomplishments:

  • Fixed JamTrack loading sequence - defer UI until backend processing completes
  • Fixed JamTrack player window sizing (460x350) without scrollbars
  • Implemented "Create custom mix" navigation to JamTrack editor in new tab
  • Added callback cleanup to prevent memory leaks in JamTrack
  • Backing tracks now sync to session screen when opened
  • Added async cleanup to prevent unmount state warnings
  • Prevented opening multiple media players simultaneously

Stats:

  • 44 files modified
  • +5,210 / -403 lines of JavaScript/React
  • 2 phases, 5 plans
  • 7 days (2026-02-25 → 2026-03-03)

Git range: eab0b0d19 → 51f7cb105

What's next: To be determined in next milestone planning

v1.5 Fix Session Recording (Shipped: 2026-02-25)

Delivered: Fixed session recording crash and memory leaks, enabling stable recording sessions of 15+ minutes.

Phases completed: 24-25 (2 plans total)

Key accomplishments:

  • Fixed C++ client crash on Start Recording (JSON parsing fix in rest.js)
  • Added timer cleanup for recording hook (waitingOnStopTimer properly cleared on unmount)
  • Implemented conditional callback cleanup for window.JK (prevents race conditions)
  • Added async operation guards with ignore flag pattern
  • Created UAT checklist for memory verification (25-UAT.md)
  • User verified 15+ minute recording stability with no memory growth

Stats:

  • 18 files modified
  • +1,103 / -107 lines of JavaScript/React
  • 2 phases, 2 plans
  • 6 days (2026-02-19 → 2026-02-25)

Git range: 1512f646e → 2292cb4fd

What's next: To be determined in next milestone planning

v1.4 Memory Leak Prevention (Shipped: 2026-02-10)

Delivered: Fixed memory leaks causing session screen freezes after ~10 minutes through comprehensive audit and cleanup patterns for VU meters, chat, and session callbacks.

Phases completed: 19-23 (5 plans total)

Key accomplishments:

  • Comprehensive memory leak audit identifying unbounded vuStates and chat message accumulation as primary leak sources
  • VU meter state cleanup with removeVuState function integrated with mixer lifecycle
  • Chat memory bounds (MAX_MESSAGES = 500 per channel) with session leave cleanup
  • Session callback cleanup with useRef pattern for reliable unregistration
  • User verified 15+ minute session stability with no freezes

Stats:

  • 4 files modified
  • 78 lines of JavaScript (net)
  • 5 phases, 5 plans, 12 tasks
  • 3 days (2026-02-08 → 2026-02-10)

Git range: audit(19-01) → docs(23-01)

What's next: To be determined in next milestone planning

v1.3 Session Settings Tests (Shipped: 2026-02-08)

Delivered: Test coverage for Session Settings modal to enable confident changes.

Phases completed: 17-18 (2 plans total)

Key accomplishments:

  • Jest unit tests for JKSessionSettingsModal component
  • Playwright integration tests for Settings modal user flows
  • Coverage for critical paths: save, cancel, validation, errors

Stats:

  • 2 phases, 2 plans
  • 1 day (2026-02-08)

Git range: feat(17-01) → docs(18-01)

What's next: Memory leak investigation (v1.4)

v1.2 Session Attachments (Shipped: 2026-02-07)

Delivered: File attachment capability for music sessions, allowing users to upload files and share them in real-time via the chat window.

Phases completed: 12-16 (11 plans total)

Key accomplishments:

  • Attach button in session toolbar with OS file dialog integration
  • File validation (10 MB limit, approved file types)
  • Upload progress indicator in chat window
  • Attachment display in chat with metadata and clickable links
  • Real-time synchronization via WebSocket broadcast
  • Error handling with toast notifications for all failure cases
  • Unread badge persistence across page reloads

Stats:

  • 12 files created/modified
  • 1,868 lines of JavaScript/React
  • 5 phases, 11 plans
  • 5 days from Phase 12 start to ship

Git range: docs(12) → docs(16)

What's next: To be determined in next milestone planning

v1.1 Music Session Chat (Shipped: 2026-01-31)

Delivered: Real-time chat functionality for music sessions with modeless window, message history, and read/unread tracking.

Phases completed: 6-11 (13 plans total)

Key accomplishments:

  • Modeless chat window with WindowPortal
  • Real-time message delivery via WebSocket
  • Message history with REST API integration
  • Unread badge with localStorage persistence
  • Message composition with optimistic updates

Git range: docs(06) → docs(11)

v1.0 Media Players (Shipped: 2026-01-14)

Delivered: Backing Track and JamTrack players migrated from legacy jQuery/CoffeeScript to modern React.

Phases completed: 1-5 (12 plans total)

Key accomplishments:

  • Backing Track player with time display and seek controls
  • JamTrack player with mixdown selection
  • Real-time playback monitoring via polling
  • Volume and loop controls

Git range: Initial → docs(05)