Crossgrade: eligible versions Logic & Ableton Live

could someone, ideally an official Steinberg person, please give definite information regarding which versions of Logic Pro & Ableton Live are eligible for crossgrade price for Cubase Pro 10.
I would like to know if Live 5 or Logic Pro 9 are eligible?
I have searched this forum, the steinberg website & shop, and more widely and cannot find any info.

It might be helpful for others if the answer provides the oldest eligible versions of all the software mentioned here:

Ableton Live Standard / Suite
Logic Pro
Cakewalk Sonar Platinum / Professional
Digital Performer
FL Studio Signature / Producer
Pro Tools / Pro Tools HD
Reason (from Version 6)
Studio One Professional

Thank you