From the GitHub release page:
2.0.0 is here! 2.0.0 updates CircuitPython to a MicroPython 1.9.2 foundation that we built awesome data storage related functionality on. Now you can write files to the file system and, on some boards, write raw bytes to a non-volatile section of memory.
Thank you to all CircuitPython and MicroPython contributors. Second, thank you to all who tested and found issues with 2.0.0 betas: @ladyada, @ntoll, @deshipu, @willingc, @jerryneedell, @KurticusMaximus, @kattni, @cledic, @diogoviannaaraujo, @cpunches, @eighthree, @joeynelson, @mrmcwethy, @fabitencourt, @hukuzatuna. From discord: scruffynerf, Sigafoos. Please keep up the awesome testing! Join us on the Discord chat to collaborate.
Here are the changes since 1.0.0:
- Update to MicroPython 1.9.2 which supports mounting multiple file systems at once.
- Introduce a
storagemodule to facilitate mounting and unmounting file systems.
- atmel-samd: Increase heap size from 16k to 20k. This means more code can be loaded. Thanks @dhalbert!
- Introduce a
nvm.ByteArrayto provide limited byte storage even when the file system is read-only.
- Explicitly load frozen modules from the
.frozenpython path instead of the empty path implicitly.
- Documentation improvements thanks to @willingc, @KurticusMaximus, @mrmcwethy and @dhalbert .
- atmel-samd: Introduce
audiobusio.PDMInfor recording sound to memory from a PDM microphone such as the one on the CircuitPlayground Express.
- atmel-samd: CircuitPlayground Express. NeoPixel library is now frozen in.
Moving from 1.0.0 to 2.0.0 is not a perfect process. There are a few things that break when doing so.
- mpy files compatible with 1.0.0 are NOT compatible with 2.0.0 because MicroPython changed the format. A 2.0.0 bundle is available here. (Its built by changing the branch of circuitpython in the bundle repo before building it.)
uosis replaced by
urandomis replaced by
Have a Feather M0 Express, Metro M0 Express, Gemma M0, Trinket M0 or Circuit Playground Express? Download a .uf2 and follow these instructions. To install our libraries simply download the bundle for your release and copy the
libfolder onto your
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