cakephp/cakephp — pull request #3451 by dereuromark (2014-05-07 23:12:37+00:00)
Title: 3.0 range

Resolves https://github.com/cakephp/cakephp/issues/3304

One can use a custom (own) validation rule rangeExclusive() for exclusive ranges from there on if needed.
But that sounds like a really rare use case to me.

I will update the migration guide / docs afterwards.