Changelog

What's new in FresnelPath.

Product-level highlights of new workflows, interface and reporting improvements, performance work, and technical upgrades — newest first. For what's planned next, see the roadmap.

Last updated 15 July 2026.

Multi-technology planning & real-world realism

July 2026

New features

  • Technology comparison — rank LoRaWAN, LR-FHSS, Wi-Fi HaLow, and LEO satellite against the same site so you can choose a radio technology with evidence.
  • LR-FHSS data rates added to the LoRaWAN toolkit for long-range, low-rate links.

Workflows

  • Wi-Fi HaLow planning expanded from a single profile to eight regional and country channel plans, with a realistic coexistence and interference model.
  • Satellite planning gained real atmospheric modeling, a more realistic link-reliability model, and per-pass Doppler detail.

Reporting

  • New narrative report sections for HaLow coexistence, satellite reliability, and technology comparison.
  • Report images now match the interactive path-profile chart exactly, including terrain curvature and Fresnel-zone shading.

Technical improvements

  • The Longley-Rice terrain model now runs the real reference engine, with a visible badge whenever a simplified fallback is used instead.
  • Satellite calculations now use published ITU-R atmospheric models rather than fixed constants.

LEO satellite IoT planning

June 2026

New workflow

  • Plan a LEO satellite IoT link end to end: orbit geometry, uplink budget, pass windows, Doppler, and a payload service-objective verdict.
  • A provider, terminal, and antenna catalog to pick realistic hardware for the estimate.

Interface

  • A hybrid coverage view on the map showing where terrestrial coverage holds and where satellite fills the gap.

Reporting

  • Satellite availability and link-budget sections added to reports.

Field calibration, equipment catalog & imports

May 2026

New features

  • Import field-tester measurements to explain planned-versus-measured differences in reports (used as evidence, it doesn't alter the prediction models).
  • An equipment catalog that resolves antenna models to their real gain and pattern.
  • An import workbench for site data from KML, KMZ, CSV, and Excel.

Reporting

  • Regulatory confidence tiers (Verified / Regional / To-be-determined) shown per site.

Unified results & the analysis workbench

May 2026

Interface

  • All workflow results were consolidated into a single results drawer, so path, coverage, and node-link outcomes live in one place.
  • A clear split between point-to-point and area-planning workflows.

Workflows

  • Solar power viability now persists across saves and appears in shared and embedded reports.

Audience reports, sharing & the real P.1812 engine

April 2026

New features

  • Audience-specific reports — the same analysis rendered for a regulator, customer, engineer, or field worker.
  • Publish a report, share it by link, or embed it, with the maps and charts frozen at publish time.

Technical improvements

  • Point-specific propagation now runs the full ITU-R P.1812 method, including clutter and atmospheric absorption.

First public release

March 2026

Core features

  • Point-to-point path analysis with Fresnel-zone clearance over real terrain.
  • Six ITU-R propagation models with automatic selection, and four diffraction methods.
  • LoRaWAN network planning across regional frequency plans.
  • Solar power viability for off-grid sites.
  • Interactive GLO-30 30 m 3D terrain.