PlatformIO Core 3.5.3

We’re happy to announce the release of PlatformIO Core 3.5.3, a new bugfix and tooling update for PlatformIO Core 3.5.

What is new

  • PlatformIO Home - interact with PlatformIO ecosystem using modern and cross-platform GUI:
    • “Recent News” block on “Welcome” page
    • Direct import of development platform’s example
  • Simplify configuration for PIO Unit Testing: separate main program from a test build process, drop requirement for #ifdef UNIT_TEST guard
  • Override any option from board manifest in Project Configuration File “platformio.ini” (issue #1612)
  • Configure a custom path to SVD file using debug_svd_path option
  • Custom project description which will be used by PlatformIO Home
  • Updated Unity tool to 2.4.3
  • Improved support for Black Magic Probe in “uploader” mode
  • Renamed “monitor_baud” option to “monitor_speed”
  • Bug fixes and performance improvements.

See PlatformIO 3.5.3 Release Notes for details.


  • PlatformIO IDE:
    - Atom: Menu: PlatformIO > Upgrade PlatformIO Core
    - VSCode: ctrl+alt+t, Run Other Tasks > Upgrade PlatformIO Core
  • PlatformIO Core: Please run pio upgrade command in terminal.


The PlatformIO Plus Team