CircuitPython has a number of “ports” that are the core implementations for different microcontroller families. Stability varies on a per-port basis. As of this release, these ports are consider stable:
atmel-samd: Microchip SAMD21, SAMx5x
cxd56: Sony Spresense
espressif: Espressif ESP32-S2
nrf: Nordic nRF52840, nRF52833
raspberrypi: Raspberry Pi RP2040
stm: ST STM32F4 chip family
These ports are considered alpha and will have bugs and missing functionality:
broadcom: Raspberry Pi boards such as RPi 4, RPi Zero 2W
espressif: ESP32-S3, ESP32-C3
mimxrt10xx: NXP i.MX RT10xxx
stm: ST non-STM32F4 chip families
Changes since 7.2.1
Fixes and enhancements
Improve auto-reload logic to avoid triggering multiple reloads, especially on RP2040 and macOS. #6153. Thanks @tannewt.
Port and board-specific changes
Re-enable bleio and remove frozen PortalBase on Adafruit MatrixPortal. #6154. Thanks @tannewt.
New boards since 7.2.1
See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for 7.x.x.
Thank you to all who used, tested, and contributed since 7.2.1, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.
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