Survey: compatibility vs speed of rdiff-backup development

Hi,

before I start for real with the development of version 2.4, I'd like to 
get your opinion on the exact direction to take:

https://framaforms.org/compatibility-vs-speed-of-rdiff-backup-development-1676028206

I'd appreciate to get numerous answers and opinions. Feel free to also 
discuss and argue on this mailing list.

I'll share the results on this list but they're public anyway.

Thanks, Eric