V2.1

• Improved startup_gd32fxxx.S
• CMSIS has its own project now
• Upgraded to CMSIS V5.0.5
• Removed lib-debug. Now part of lib-hal
• Updated to latest GD32 Firmware
• Introduced debug software UART0
• Major cleanup lib-configstore
• In order to support Newlib; removed lib-c, lib-c++ and added lib-clib
• In order to support FreeRTOS; Added Software timers in H.A.L. framework.
• Major update network stack. Added support for RFC 5227 and RFC 3927

V2.0

• Improved build system
• Added stack debug framework
• Removed not used source files
• Added support for void __libc_init_array(void)
• Changed the layout of the config store.
  • Before upgrading the firmware it is advised to make a backup of the configuration.
  • After the upgrade, then restore the saved configuration.