QuantAQ changelog
QuantAQ changelog
quant-aq.com

MODULAIR-PM Firmware Version 29 Released

 

MODULAIR-PM

  

πŸ› Bug Fixes

  • Nephelometer Lockup. A long-time bug affecting the Plantower PMS5003 nephelometer has been resolved. Previously, timing issues with the underlying deviceOS could cause the nephelometer to 'lock up' and repeat stale data for long periods of time. A patch has been applied to reduce the frequency and to catch and repair the issue when it does occur.

MODULAIR-X Firmware Version 14 Released

 

MODULAIR-X

  

πŸš€ Features

  • SD Error Logging. A new logs/ directory with more resolved logs will now appear on the SD card.

πŸ› Bug Fixes

  • Crash-Tolerant Metrics. Cumulative runtime stats and other cumulative information are now more fault-tolerant.
  • LiPo Charging in Cold Temps. We squashed a bug that affected LiPo charging in very cold (< -20ΒΊC) weather.

QuantAQ Cloud Updates - April 24th, 2026

 

QuantAQ Cloud

  

πŸš€ Features

None reported in this release.

πŸ› Bug Fixes

  • API Response Order. If you previously were not explicitly providing an order, it was previously possible that the order would not be consistent across multiple pages, leading to duplicate or omitted records. Now, there is a default order applied to all paginated responses, and you can provide your own field to order by.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.

QuantAQ Cloud Updates - April 12th, 2026

 

QuantAQ Cloud

  

πŸš€ Features

None reported in this release.

πŸ› Bug Fixes

  • Data Downloads. We patched a bug that affected some MODULAIR and MODULAIR-PM devices as well as ARISense systems. Previously, there were periods of time where the final data were incorrectly null when downloading combined raw+final datasets. This issue does not affect X-series devices at all.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.

MODULAIR-X Firmware Version 12 Released

 

MODULAIR-X

  

πŸš€ Features

None announced in this release.

πŸ› Bug Fixes

  • MODULAIR-UFP QC Rollback. This release rolls back one of the QC metrics that was introduced in V11. The QC metric for deadtime correction in the MODULAIR-UFP was found to be overly strict and warrants further investigation.

QuantAQ Cloud Updates - March 30th, 2026

 

QuantAQ Cloud

  

πŸš€ Features

None reported in this release.

πŸ› Bug Fixes

  • Heatmap. We patched a small bug related to how times are displayed on the heatmap figure.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.

QuantAQ Cloud Updates - March 24th, 2026

 

MODULAIR

  

πŸš€ Features

  • New Heatmap Figure for X-series Devices. We have introduced a new heatmap figure on all X-series device pages that allows you to view historical, hourly data as well as uptime by pollutant.
  • X-Series View. When viewing data for an X-series device, time zone changes are now applied immediately to the plotted data.

πŸ› Bug Fixes

None reported in this release.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.

MODULAIR-X Firmware Version 11 Released

 

MODULAIR-X

  

πŸš€ Features

  • LiPo Charging Rate. The maximum charging rate for the internal LiPo battery has been reduced to avoid a large power draw after long outages.

πŸ› Bug Fixes

  • Cold weather LiPo Behavior. We have rewritten logic around charging and discharging the internal LiPo battery during very cold (< -20ΒΊC) temperatures.
  • Debouncing Power Dips. Previously, if power was lost momentarily (< 5s), such as during a voltage drop, the device could enter its 'safe shutdown' sequence and require a manual power cycle to turn back on. Now, there is a 5-second debounce that prevents momentary loss of power from turning off the device.
  • CPC Data Cleanliness. We added further QC checks and improved sub-1minute averaging to remove occasional inconsistencies with some data, mostly temperature, pressure, and humidity data.

QuantAQ Cloud Updates - March 19th, 2026

 

QuantAQ Cloud

  

πŸš€ Features

  • Organization and Networks. You now show up at the top of the list for Network and Organization member lists.

πŸ› Bug Fixes

  • ARISense Data Downloads. There was a bug with the rh_manifold column in raw data downloads that has been fixed.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.

QuantAQ Cloud Updates - March 12th, 2026

 

QuantAQ Cloud

  

πŸš€ Features

None reported in this release.

πŸ› Bug Fixes

None in this release.

πŸ”’ Security Updates

  • Third-Party Libraries. This release includes several behind-the-scenes security updates associated with third-party libraries.