A circleOS 2.0 has been posted to comply with the new STM32 libraries... It sands for 1.8.
The primer2 will come with V3.0 that provides many new features (power management, audio, touchscreen management, etc...).
The new source files are common to both Primer1 and Primer2 (conditional statements make the difference).
For Primer1, V3.0 is again not a big change, but we reorganized the MAP in order to leave more space for debugging.
Francis