Why doesn't 1.6.9 show as an update when Include pre-release is selected?

Why doesn’t 1.6.9 show as an update when Include pre-release is selected?
Currently have 1.6.8 on 10.9.4.

Thanks … Ken

That was Yosemite-related release. I didn’t want to disrupt everyone.

If you look at this feed, you can spot minimumsystemversion tag set to 10.10
http://updates-s3.binaryage.com/totalfinder-beta.xml