Minimum OSX for Xojo 2013r4

Can I build a cocoa app for MacOSX 10.6.8 with Xojo 2013r4?
Some of my users seem to have problems with it…

No.

Thanks for the replay.
What is the oldest version of MacOSX that’ll work?

2013r4.1 builds for OS X 10.7 or higher.

2013r3.3 builds for OS X 10.6 or higher.

Additional info here: http://documentation.xojo.com/index.php/Deprecations

Thanks a lot.
That explains everything.