Particle Tools Changelog

December 19th 2022: Device OS v5.2.0

This is a release 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 and may be used for production.

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




  • Initial support for BG95-M6 modem #2555
  • [TrackerM] Collect cellular properties with system info #2602
  • [rtl872x] fixes System.ticks() #2600
  • System setup and BLE threading improvements #2587
  • [rtl872x] [freertos] [experimental] multi-step priority disinheritance #2581
  • [rtl872x] sleep improvements #2586
  • [rtl872x] fixes pinResetFast clearing too many pins and improves speed #2582
  • [rtl872x] prebootloader: enable BOR with lowest available thresholds #2569
  • [rtl872x] Fix USART/DMA deadlock #2603
  • [gen3] [p2] Fix i2c hal deadlock #2572
  • [p2] WiFi bugfixes #2562
  • [tracker/trackerm] Fix acquireWireBuffer for platforms where system initializes I2C before user app 2551
  • [rtl872x] BLE Central connection failure when peer disconnects #2552

… and other bugfixes and improvements!

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