Release 5

Added

• Dual ETA display showing next departure for same line+destination
• Platform-to-arrow directional symbols (configurable per platform/stop ID)
• Multi-hardware variant support (MatrixPortal S3 + generic ESP32-S3 N8R2)
• Manual rest mode toggle via web UI
• Departures debug list in web config
• "Loading Departures..." screen on boot and rest mode exit (replaces misleading "No Departures")
• Help text for line color wildcard pattern syntax
• Rest mode period input validation (HH:MM-HH:MM format)

Changed

• Redesigned web configuration interface with tabbed layout
• Per-tab config save (only sends active tab fields)
• Full day names and numeric dates in status bar
• Display rendering moved to CPU core 1 for smoother updates
• Display state machine centralized in DisplayController
• Departure sort: secondary sort by destination (was line name)
• Cold temperature color changed from blue to cyan

Fixed

• Line color config lost on save (stale JS serialization overwrote with wrong selectors)
• Timezone parsing issues for some departures
• XSS vulnerabilities, thread safety, HTTP limits, config validation
• Rest mode display clearing via signalDisplayUpdate
• Font descender artifacts removed

Release 4

Added

• Weather display with Open-Meteo API integration (icon and temperature on status bar)
• Rest mode for scheduled display power saving with REST API control endpoint
• MQTT integration for self-hosted transit data (see docs/MQTT.md)
• Configurable destination scrolling option for long names (default: off)
• Code formatting config (clang-format and editorconfig)

Performance

• Chunked HTTP reading for Prague and Berlin APIs (reduced memory usage)

Fixed

• Line number preformatting for consistent display alignment

Release 3

Added

• Demo Mode: Standalone demo mode with customizable sample departures
  • Web interface to edit sample departures (line, destination, ETA, A/C status)
  • Available in both AP and STA modes
• Smart ETA Updates: 10-second ETA recalculation from cached timestamps
  • Reduces API calls by 6x while keeping display fresh
  • Allows longer refresh intervals (up to 300s)
• Telnet Logging: Remote debugging via telnet (port 23)
  • Enable via debugMode config field in settings
• Extended Departure Buffer: Increased from 6 to 12 departures
  • Provides 8-12 minute buffer during peak times
• Condensed Font Support: Automatic font switching for long destinations
  • DepartureMonoCondensed5pt8b for destinations >16 chars (23 char capacity)
• API Retry Logic: Improved error handling and user feedback
• Factory Reset: Reset to defaults via settings page
• Custom Line Colors: User-configurable color mapping system
  • Pattern matching with trailing asterisk (e.g., "9*=CYAN")

Changed

• API Optimization: Always fetch MAX_DEPARTURES (12) per stop for optimal caching
  • Increased JSON buffer to 12KB for busy stops
• Web UI Improvements
• Display Improvements
• Logging: All Serial.println() converted to debugPrintln() for consistent logging

Fixed

• OTA Handler: Split handleUpdateUpload into separate progress/complete handlers
• Stack Overflow: Made tempDepartures static (~2KB moved off stack)
• API Query: minDepartureTime now queried in API, removed unnecessary filtering in parser
• Font Metrics: Fixed xAdvance values in DepartureMono5pt8b

Release 2

Fixed

• Enable HTTP redirect following for GitHub asset downloads

Release 1

Initial public release of SpojBoard firmware.