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 7.3.1
Fixes and enhancements
Update frozen libraries. #6619. Thanks @dhalbert.
Always release displays during deep sleep. #6546: backport of #6543. Thanks @jepler and @dhalbert.
Thank you to all who used, tested, and contributed since 7.3.1, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.
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