• The --upgrade option will now work even if MCU is in bootloader (for example if previous upgrade was aborted).

• On GD32 MCUs, omnia-mcutool will now refuse to upgrade application firmware to version lower than 4.1 if bootloader version is 2.0, since these versions of application and bootloader are not compatible.

  If user already upgraded to such a combination, an upgrade of bootloader firmware is required.

  The --upgrade option will inform about this and will automatically upgrade bootloader firmware if the --force option is given.

• Various other improvements.

• fixed too many operands error in the sign subcommand

• fix errno handling
• add subcommands serial-number, mac-address, public-key, sign, sign-hash for boards where board information and cryptography is provided by MCU

New features

• upgrading the MCU firmware with the --upgrade option
• new flashing protocol
• long options
• better firmware version reporting
• inspecting MCU status and configuring various features