Preliminary testing with EP 4.0.24 on ZC 1.39g, 1.5.0, 1.5.1, and 1.5.3 appears to be working correctly for the basic import/export and attribute features. I did not test 1.38 (very old and insecure), nor 1.5.2 since this was a preview release and not an official download. I don't see why it wouldn't work on these, but I have to draw the line somewhere

I have not tested the Stock by Attributes features added by mc12345678. I'll leave testing to mc12345678 for these as I have not used this plugin, and there appear to be several flavors of it.

-chadd