title: Why have workflows been removed in Odoo v11?
body: <p>I have a module that works very well when I use it in Odoo 10. But, in Odoo 11, the part of the workflows doesn't work.</p>
  
  <p>I am new using Odoo 11 and I can't find information about workflows. What are the differences in workflows between Odoo 10 and Odoo 11? I think that I have to change the .xml files.</p>
  
  <p>Thanks in advance.</p>