v1.2.1 — Polished Release

New Features

• Added Live Aircraft table with 7 columns (callsign, hex, type, alt, speed, hdg, dist, seen)
• Added 150+ country flags based on ICAO hex ranges
• Added callsign caching (remembers callsigns like tar1090)
• Added ADSBx quick buttons (Leaderboard, MLAT Sync)
• Added units toggle (kt/nm ↔ mph/mi)
• Added menu option 7: Rebuild local changes
• Added menu option 0: Exit

Bug Fixes

• Fixed MLAT configuration was truncated, now includes all 4 MLAT feeds
• Fixed Messages/sec now shows actual rate, not cumulative total

Updated Screenshots

• dashboard-full.png
• dashboard-light.png
• setup-menu.png

Upgrade Instructions

cd ~/easyadsb
./setup.sh

Choose option 6 (Update EasyADSB)

Full Changelog: v1.2.0...v1.2.1