Comment 3 for bug 1961635

dfu-util 0.11 is fully backwards-compatible with 0.9 so it shouldn't be a problem with firmware-tomu. Please also note that firmware-tomu doesn't call anything from dfu-util itself, only their user instructions tell the user to run dfu-util manually.

The feature changes since 0.9 (see also ChangeLog for all bug fixes) are
- python3 compatible
- quirks for several devices (including the popular GD32VF103 chips)
- manual pages added
- support large files
- new --devnum option to filter devices
- new --wait option for device discovery
- improved status and error messages

If 0.11 would not be let in, you would do upstream a favour by removing it from your archive. It is better that users find and install 0.11 themselves rather than running into problems with the outdated 0.9.