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 7.3.0-rc.0
Fixes and enhancements
Restore automatic garbage collection after an import. #6406. Thanks @dhalbert.
Add more possible flash chips to certain boards. #6403. Thanks @Neradoc.
Port and board-specific changes
Build and infrastructure changes
Translation additions and improvements
New boards since 7.3.0-rc.0
See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:
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