# RT-Thread nano v3.1.5 Change Log Change log since v3.1.3 ## Kernel - update src from released rt-thread v3.1.5 - update code style and license ## libcpu - add cortex-m23 - add cortex-m33 ## components - add device.c ## bsp - add samples for gd32e230k-msh - add samples for lpc55s69-blink