title: Is okio 1.9.0 backward compatible with okio 1.2.0?
body: <p>My project depends on a couple of third party libraries, which bring in <code>okio</code> v. 1.9.0 and 1.2.0, respectively.</p>
  
  <p>Can I count on backward compatibility, and just use <code>okio</code> version 1.9.0 (in place of 1.2.0)?</p>