[Moo] Re: Backward compatibility 1.2.5 of 1.2.0 versions

[Christoph Pojer]

There might be issues if you are using certain undocumented features that 
might have changed or if you used something in the wrong way (like using 
something with buggy behavior) that has been fixed. Generally, point 
upgrades should never break your code. Just try to update and see if 
something breaks and get back here and we'll help you.