v4.0.2 (Argon/Boron/B SoM/B5 SoM/Tracker/E SoM X)
5deba5a
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Device OS 4.0.2 LTS is available in the Web IDE, Particle CLI and Workbench for (Argon/Boron/B SoM/B5 SoM/Tracker/E SoM X).
Released on December 15th, 2022
Note: This is a Release and may be used for production. This is the third Release in the Device OS release 4.x line (LTS) with critical bugfixes and backports from 5.x release line
To learn more about LTS release line, read our blog post.
You can view information about Device OS versions, upgrades and downgrades here.
Gen 3 256KB application binary support
Device OS v3.1.x and further releases bring support for 256KB application binaries to all Gen 3 platforms (at that time: Argon, Boron, B SoM, B5 SoM, Tracker). A few important aspects of this change:
- Compatibility with 128KB applications built with < Device OS 3.1 versions is maintained. Devices can still run them even if other parts have been upgraded to Device OS 3.1+.
- Upgrade process OTA (including product-based upgrades) is transparent.
- When upgrading locally (using DFU or Serial), make sure to update the bootloader first, as it has some logic managing compatibility between 128KB and 256KB application types. See this page on steps how to perform the update.
- If using standalone Particle CLI installation, make sure it's updated to >= 2.12.0 version, which includes support for 256KB applications.
4.0.2
BUGFIXES
- [gen3] Use OTP Feature flag to change ADC reference source #2597
- [boron]Use the internal ADC reference on some Gen 3 platforms #2588
System Binaries (all devices)
https://github.com/particle-iot/device-os/releases/download/v4.0.2/particle_device-os@4.0.2.zip
Programming and Debugging
You can view specific programming and debugging notes for this version of firmware here.