<div dir="ltr"><div>Indeed, we do something similar in astropy, with a pre-release failure being considered breakage (rather than ignorable as for -dev):<br><a href="https://github.com/astropy/astropy/blob/master/.travis.yml#L142">https://github.com/astropy/astropy/blob/master/.travis.yml#L142</a><br></div>‚Äč-- Marten<br></div>