Red Grid Link v1.5.5 — Reliability and trust: — Field Link sync is now end-to-end AES-256-GCM encrypted in PIN and QR sessions — After-Action Reports include the GPS route from your session — Map annotations now persist across app restarts — Wrong PIN or QR shows a clear rejection instead of an indefinite spinner — Session teardown is resilient to partial failures (sync engine no longer hangs) — Privacy policy refreshed to disclose optional crash diagnostics (PII off, GPS coordinates stripped)

Red Grid Link v1.5.4 — Field Link reliability and team coordination: — Field Link sessions now work end-to-end between iPad and iPhone hosts. The previous build silently blocked iOS-to-iOS joins. — Position updates from the host now reach every joiner reliably. Larger payloads are chunked so iOS no longer truncates them mid-broadcast. — Joiners now inherit the host's operational mode automatically. Start a SAR session and every connected device sees SAR-flavored labels, not whatever each device had saved. — Lead promotion now propagates correctly: a peer promoted to lead actually receives the role, and joiners trust role changes from the session host. — Changing your display name in Settings during an active session now updates your callsign live for connected teammates instead of waiting until the next session. — Map content (waypoints, search areas, boundaries) now persists across leaves and rejoins. Closing a session and rejoining the same one no longer wipes everything you placed on the map. — Emergency SOS no longer re-displays the alert overlay after acknowledgement and cancellation. Stale 30-second retransmits arriving after a cancel are now suppressed. — Field Link Diagnostics added under Settings → Help & Support so you can copy a snapshot of GPS / Bluetooth / session state and email it to support if you ever need help. — GPS now keeps a fix on iPad when stationary, and the GPS stream resumes correctly after granting location permission while the app was backgrounded. — Multipeer Connectivity runs alongside Bluetooth on iOS so iPhone-to-iPhone discovery keeps working when Bluetooth is constrained. — Smarter scan list, sessions in proximity no longer cross-connect, and a clearer in-app explanation of how location is used and stored on your device.

Red Grid Link v1.5.2 — Field Link now works: - Field Link peer sync: teammates appear on the map and peer list in real time over Bluetooth. - MGRS accuracy: corrected 100km grid square letter calculation for all UTM zones. - Mode callouts: tactical quick-send labels now change per operational mode (SAR, Backcountry, Hunting, Training). - Peer names: callsigns now display on map markers and in the peer list. - Drawing: markers and annotations now save properly; message bar hides during drawing. - PIN join: scan-to-join now prompts for PIN on secured sessions. - UI polish: SOS button repositioned, annotation toolbar accessible, keyboard flicker fixed. - New tactical tools: peer distance/bearing popup, celestial navigation with sun/moon bearings.

Red Grid Link v1.5.1 — critical fixes: - Emergency Beacon: SOS button now correctly triggers the team alert and emergency overlay on the map screen. - Field Link discovery: Scan/Join now actually initiates BLE discovery and surfaces nearby teammates. - Hardened ECDH P-256 key exchange and stream cleanup during session teardown. - Stability improvements and minor bug fixes. If you experienced trouble starting a Field Link session or triggering the SOS in v1.5.0, this update resolves it.

Security and communication update: • Real ECDH P-256 key exchange -- every peer gets unique derived encryption keys • Emergency beacon: one-tap SOS sends GPS to all teammates, retransmits every 30 seconds • Tactical messaging: 7 pre-canned messages (HELP, STOP, RALLY ON ME, ALL CLEAR, FOUND SOMETHING, HEADING BACK, NEED SUPPLIES) plus free text • BLE Coded PHY now actually negotiated for extended range on supported devices • Signal quality warnings when connection weakens • Bug fixes and performance improvements

Extended range and navigation update: • BLE Long Range: up to 1km range on supported devices (Coded PHY) • Signal strength indicator for each connected teammate • FixPhrase: share your location as 4 easy words (~11m accuracy) • Download OpenStreetMap or OpenTopoMap tiles for offline use • Coordinate bar cycles between MGRS and FixPhrase display • Connection quality warnings when signal weakens • Bug fixes and performance improvements

NEW IN V1.3 — TEAM FEATURES • Team roles: Lead, Scout, Medic, Comms, and custom roles with callsigns • Waypoint sharing: save personal waypoints or share with your team • Tap-to-place map annotations visible to all connected peers • Boundary alerts: Lead sets a geofence, get notified if anyone crosses it • Enhanced After Action Report with per-member tracks and boundary events • NATO phonetic voice callouts for hands-free position updates • Session export/import for backup and review • New marker categories: hazard, rally point, objective, cache • Annotation improvements: 6 colors, undo, and delete • 986 tests passing

v1.3.0 — Localization Update - Added support for 30+ languages across the entire app - Improved UI text contrast and accessibility - Bug fixes and performance improvements