Particle Tools Changelog

August 16th 2023: Device OS v5.5.0-rc.1

This is a Release Candidate on non-LTS feature development branch (5.x). To learn more about our new LTS release line, read our blog post.

Note: This is a Release Candidate and should not be used for production.

You can view information about Device OS versions, upgrades and downgrades here.



  • Asset OTA support (please check out documentation for this feature at Asset OTA | Reference | Particle)
  • M SoM (Orson) platform support
  • P2/Photon 2/Tracker M/M SoM experimental WPA3 support
  • Hidden SSID support
  • [Cellular/R510] Enables UPSV=1 low power mode for R510 when idle for >=9.2s reducing current consumption
  • A lot of bugfixes for P2-based platforms (P2/Photon 2/Tracker M/M SoM)

:star2: Be sure to read the full collection of release notes Particle Device OS Updates Thread.