4.2.1

• Preparations for upcoming PIO Core 4.4

4.2.0

• Updated Zephyr framework to v2.2.0 (release notes)
• Updated Arduino Adafruit core to v0.19.0 (release notes)

4.1.0

• Updated Adafruit core to v0.18.5 (release notes)
• Added new board Adafruit Feather nrf52840 Sense (issue #72)
• Added SVD file for the nrf52840 chip (issue #69)
• Allowed using nrfutil as upload method despite missing bootloader binary
• Fixed an issue when an onboard debug probe is not selected by default
• Fixed overriding of linker scripts via board_build.ldscript option in platformio.ini
• Fixed an issue with set header file that prevented successful compilation (issue #71)

4.0.0

• Initial support for Zephyr framework
• Added support for Arduino Nano 33 BLE (issue #53)

3.8.0

• New board ItsyBitsy nRF52840 Express
• Updated mbed framework to 5.14.1
• Updated Arduino framework (Adafruit core to 0.14.5)

3.7.0

• New boards:
  • Adafruit Circuit Playground Bluefruit
  • Particle Xenon
• Updated Adafruit Core with Arduino API to 0.13.0 (release notes)

3.6.0

• Update mbed framework to 5.13.4
• Escape nRFutil path (issue #54)

3.5.0

• Added new board SDT52832B
• Updated nRF5 Arduino core to 0.6.0
• Do not require tool-nrfjprog if it will not be used (issue #45)

3.4.0

• Implemente "erase" target (#34)
• Update mbed framework to 5.12.3
• Update Adafruit/Arduino core to 0.10.1

3.3.0

• Updated mbed framework to 5.11.5
• Dropped mbed support for Adafruit boards
• Downgraded GCC toolchain to 7.x