MeshMonitor v4.13.1-rc2

⚠️ Pre-release (release candidate). For testing ahead of the 4.13.1 final. No :latest Docker tags are published for RC builds.

This RC is a Map Analysis release: it lands the full Terrain Link Profile tool and a wave of map-accuracy improvements on top of v4.13.1-rc1. Plan a link between two points and MeshMonitor now profiles the terrain between them, draws the Fresnel zone, computes a link budget, and colors a clear/marginal/obstructed verdict — with per-source auto-frequency and RX-sensitivity defaults. As you scrub the elevation graph, a marker now tracks the matching spot on the map so you can see exactly where a given point on the profile sits. Obscured-GPS (reduced precision_bits) markers are now decluttered intelligently — a node alone in its accuracy cell stays centered, and only nodes that actually share a cell are spread — applied consistently across the Dashboard, Nodes, and Map Analysis maps from one shared implementation. Position quality also got a hard look: Null Island (0,0) fixes are now rejected on ingest across Meshtastic, MeshCore, and MQTT (including the precision-obscured (0,0) fixes that used to slip through as ~0.013°), with a new Discard invalid positions Map setting to control it. The Map Analysis toolbar was tidied into icons (labels move to tooltips) to cut clutter, MQTT-sourced direct messages now render in the DM view instead of as broadcasts, and several map layers stopped drawing artifacts for marker-less nodes. Internally, the CI pipeline's Node-24 coverage hang was eliminated so future builds are faster and don't wedge.

✨ Features

• Terrain Link Profile tool — profile terrain, Fresnel clearance, and link budget between two points, with clear/marginal/obstructed verdict coloring, per-source auto-frequency + RX-sensitivity defaults, DEM-void handling, and a settings UI (#4147, #4151)
• Link Profile graph → map hover marker — moving the cursor over the elevation graph drops a marker on the map at the corresponding geographic point along the link (#4170)
• Smarter obscured-node decluttering — the within-cell offset for low-precision_bits markers now only spreads nodes that actually share an accuracy cell; a lone node stays at its reported center (#4164, closes #4155)
• Discard invalid positions — a new global Map setting to control whether Null Island / invalid GPS fixes are discarded on ingest (default on = current behavior) (#4158)
• Icon toolbar for Map Analysis — action and layer buttons are now icons with the text as tooltip/aria-label, decluttering the top bar (#4171)

🐛 Bug Fixes

• Reject precision-obscured Null Island fixes on Meshtastic ingest — a true-(0,0) node on a reduced-precision channel arrives re-centered as ~(0.013°, 0.013°) and used to slip past the filter (#4149, #4150, #3763)
• Route MQTT-sourced direct messages to the DM view instead of rendering them as channel/broadcast messages (#4161, closes #4152)
• Stop drawing route segments & heatmap density for marker-less (position-stripped) nodes (#4167, closes #4162 / #4163)
• Pin the SNR overlay dots to the merged marker position for multi-source nodes (#4169, closes #4166)

♻️ Refactoring

• Consolidate the obscured-GPS within-cell offset into one shared occupancy-gated implementation used by every map surface — no more per-map "snowflake" behavior (#4168)

🔧 CI / DevOps

• Remove the unused coverage/Codecov runner that hung @vitest/coverage-v8 for 30+ min on Node 24, repeatedly blocking merges — CI is now faster and hang-free (#4172)

📝 Docs

• Link Profile documentation accuracy pass — multi-source auto-frequency, REST API reference, anchor fixes (#4156)

Issues Resolved

#4111 (Terrain Link Profile epic — Phases 2 & 3) · #3763 (Null Island filtering) · #4152 (MQTT directed-message rendering) · #4155 (lone-node offset) · #4162 · #4163 · #4166

Upgrade Notes

No breaking changes and no manual migration steps. Migration 123 (re-file pre-existing MQTT directed messages into the DM view) runs automatically on first boot. The new Discard invalid positions setting defaults to on, preserving existing behavior.

Full changelog: v4.13.1-rc1...v4.13.1-rc2

🚀 MeshMonitor v4.13.1-rc2

📦 Installation

Docker (recommended):

docker run -d \
  --name meshmonitor \
  -p 8080:3001 \
  -v meshmonitor-data:/data \
  ghcr.io/Yeraze/meshmonitor:4.13.1-rc2

🧪 Testing

✅ All tests passed
✅ TypeScript checks passed
✅ Docker images built for linux/amd64, linux/arm64, linux/arm/v7

📋 Changes

See commit history for detailed changes.