<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">In <a href="https://twistedmatrix.com/trac/changeset/45163" class="">https://twistedmatrix.com/trac/changeset/45163</a> twisted.internet.application.service.Service to be a new-style class. Just to remind everyone, converting an old-style class to a new-style class is an incompatible change, and reviewers should look for this.<div class=""><br class=""></div><div class="">We discovered this because this change breaks <a href="https://github.com/twisted/axiom" class="">https://github.com/twisted/axiom</a>, and probably it breaks other packages as well, since <i class="">lots</i> of things inherit from Service. So please remain diligent about looking for this in future changes. Now that it's been changed, reverting it in 15.4 would be <i class="">another</i> incompatible change, so we probably won't do that, but please keep an eye out in the future.</div><div class=""><div class=""><div class=""><div class=""><div class=""><br class=""></div><div class="">-glyph</div></div></div></div></div><div class=""><br class=""></div></body></html>