v0.1.1-alpha.12

Download OpenSpiro

Free VO2max testing. No account required. All data stays on your machine.

Changelog

Changelog

[0.1.1-alpha.12] - 2026-05-09

Fixed

  • Auto-update check no longer crashes with "Cannot read private member from an object whose class did not declare it." Two underlying issues addressed: the dependency graph was pulling in two versions of @tauri-apps/api (a Resource class identity mismatch), and the Vue ref holding the pending update was deeply reactive, which broke private-field access on Tauri's Update class.

Notes

  • If you're stuck on alpha.11, the auto-updater can't help — download alpha.12 manually from the website.

[0.1.1-alpha.11] - 2026-05-09

Added

  • Per-device metabolic models. Calculation strategy adapts to the connected analyzer — Calibre Bio uses wet-basis Haldane bookkeeping matching the official app, VO2 Master uses its on-device values. Active model shown as a badge next to the session timer.
  • Help page in the sidebar explaining how values are calculated, what affects readings, and the academic references.
  • Metabolic model recorded with each saved session and tagged in CSV / JSON exports.

Changed

  • VO2 / VCO2 for Calibre now matches the official Calibre app. The previous formula treated wet-basis sensor readings as if they were dry — the missing humidity correction inflated VO2 by 20–50 % and pushed RER below physiologically possible values.
  • VO2 Master uses its on-device VO2 / VCO2 directly instead of being recomputed.

Fixed

  • Session timer drift on long sessions. Elapsed time and the stored per-breath index now reflect real seconds (was incrementing per breath, so 30 minutes of wall-clock time was stored as ~6 minutes on the chart).

[0.1.1-alpha.10] - 2026-05-08

Added

  • In-app changelog under About → "What's new" so you can see what changed in every release.
  • Free tier expanded: you can now create up to 10 athlete profiles on the free plan (was: 1). Larger rosters remain a Pro feature.
  • FatMax protocols are now free for both cycling and running. Find your peak fat-oxidation zone without a Pro subscription. (Resting Metabolic Rate was already free.)

Fixed

  • "Add Person" in the header switcher now opens the new-person form directly instead of dropping you on the persons list.

Maintenance

  • Security update and dependency maintenance.

[0.1.1-alpha.9] - 2026-05-06

Added

  • Live data smoothing for breath-by-breath metabolic values. RER, fat %, calories and VO2 are now stable on the dashboard instead of jumping with every breath. Out-of-range breaths (RER below 0.5 or above 1.3) are rejected as sensor artefacts. Raw breath-by-breath values are still preserved in the CSV export for analysis.

Fixed

  • Auto-updater now actually restarts the app after installing a new version. Previously the message "Installing… The app will restart." appeared but the app stayed on the old version until you manually quit and reopened it.

[0.1.1-alpha.8] - 2026-05-06

Known issue

  • Auto-update download completes but the app does not restart automatically. Workaround: quit and reopen OpenSpiro after the install finishes. Fixed in alpha.9.

[0.1.1-alpha.7] - 2026-04-23

Changed

  • Removed the macOS tray icon for a cleaner system bar; OpenSpiro now lives only in the dock during sessions.

[0.1.1-alpha.6] - 2026-04-22

Changed

  • Auto-update flow polish: clearer status messages while checking, downloading, and installing.

[0.1.1-alpha.5 and earlier]

Initial alpha series — Calibre Bio and VO2 Master device support over BLE, ANT+ heart rate and power, breath-by-breath metabolic calculations (VO2, VCO2, RER, calories, fat/carb split), session recording, and JSON/CSV export.

System Requirements

Hardware

Bluetooth Low Energy adapter (built into all modern laptops). Optional: ANT+ USB dongle for ANT+ power meters and cycling dynamics.

What's included

Free

  • Live dashboard (VO2, RER, fat/carb%)
  • VO2max Ramp, RMR + FatMax protocols
  • BLE + ANT+ power meter & HR
  • Session recording & replay
  • CSV + JSON export
  • Calibration & sensor preview
  • Up to 10 athlete profiles

Pro (coming soon)

  • Efficiency protocols
  • VT1/VT2 training zones
  • AI session reports
  • PDF report export
  • Progress dashboard & trends
  • Session comparison
  • Session sharing & link export
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