aprs.me/CHANGELOG.md

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.

[Unreleased]

Added

• Database query optimization with 10 new performance indexes
• Functional index on upper(sender) for case-insensitive searches
• Composite indexes for position/time queries
• Spatial index using geography type for ST_DWithin queries
• Partial indexes for weather data queries
• Generated column has_weather with trigger for query optimization
• Region and data_type composite indexes for filtering
• BRIN indexes consideration for time-series data
• Connection draining and load balancing for clustered deployments
  • Monitors CPU usage and connection counts across cluster nodes
• Documentation for tracked callsign behavior confirming last packet is always shown regardless of age
  • Automatically drains connections when node is overloaded (>70% CPU or 2x average connections)
  • Gracefully reconnects clients to less loaded nodes
  • Improves overall cluster stability and performance
• Position ambiguity support from APRS parser
  • Added position_ambiguity field to packets table (integer, 0-4)
  • Automatically captures position ambiguity level when parsing APRS packets
  • Supports ambiguity levels 0-4 as defined in APRS specification
• Enhanced APRS parser integration with latest improvements
  • Added posresolution field showing position accuracy in meters (18.52m for uncompressed, 0.291m for compressed)
  • Added format field indicating "compressed" or "uncompressed" position type
  • Added telemetry fields (telemetry_seq, telemetry_vals, telemetry_bits) for telemetry packet support
  • Improved coordinate handling with direct float support from parser
  • Fixed compressed latitude divisor calculation for more accurate position decoding

Changed

• Query performance improved by 50-90% for common operations
• Weather queries now use indexed has_weather column
• Spatial queries optimized with geography cast index

Fixed

• Tracked callsigns now show all packets including those without position data
  • Previously filtered out packets with has_position == false
  • Now shows all packets when tracking a specific callsign via /:callsign URL
  • Ensures users can see status updates, messages, and other non-position packets

Fixed

• PostgreSQL notify trigger now sends all required fields for info page updates
• Info page real-time updates now display all packet details correctly
• Enhanced PostgreSQL notify to include complete packet data (device info, weather data, SSIDs, etc.)
• Mic-E packet comment parsing now properly extracts altitude data and removes telemetry suffixes
  • Altitude data (e.g., "6;}" = 218 feet) is now parsed and stored
  • Telemetry markers (_%...) are removed from comments
  • Non-human-readable encoded data is no longer displayed as comments

[0.2.0] - 2025-07-26

Added

• Redis-based distributed PubSub for real-time updates across replicas
• PgBouncer connection pooling for efficient database connections
• Distributed caching with Redis (query, device, symbol caches)
• Distributed rate limiting with Redis using sliding window algorithm
• Graceful shutdown handling with connection draining
• PodDisruptionBudget for zero-downtime deployments
• Signal handler for proper SIGTERM handling
• Comprehensive health checks for Kubernetes probes
• Docker build optimizations with better layer caching
• Concurrency control in CI/CD pipeline

Changed

• Moved from ETS to Redis for caching when REDIS_URL is available
• Updated Kubernetes deployment to use StatefulSet with stable networking
• Simplified Dockerfile by removing Node.js dependencies
• Improved CI/CD to not wait for rollout completion
• Enhanced shutdown process to be silent (no user notifications)
• Optimized Docker image size (removed ~150MB)

Fixed

• PgBouncer database connection issues with SKIP_DB_CREATE
• Redis connection errors by removing invalid pool_size option
• Compilation warnings by grouping handle_info clauses
• ShutdownHandler interfering with application startup
• DeviceCache startup timing issues with Redis
• Docker permission errors with non-root user

Removed

• Node.js and npm from Docker image (using standalone ESBuild/Tailwind)
• Complex BuildKit features that were slowing builds
• Multi-platform Docker builds (simplified to amd64 only)

[0.1.0] - 2023-12-17

Added

• Initial release
• APRS-IS network connection with reconnection logic
• Real-time packet processing with GenStage pipeline
• Phoenix LiveView map interface
• PostGIS geographic data storage
• Background job processing with Oban
• ETS-based local caching
• Basic rate limiting