Francesco Sacchi announced on the BeRTOS mailing list the release of the 2.0 release.

As you can see by wiki notifications, we have just finished releasing
version 2.0.0 of BeRTOS.
Here is a short list of new features:
* Major kernel refactoring
* New peripheral drivers:
o New I2C driver and interface
o PCF8574 I2C port expander
o FT245 USB to parallel interface
* New PID controller algorithm
* New configuration infrastructure
* New testing harness
* New logging infrastructure
* Add a first experimental embedded filesystem (BattFs)

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