try href=https://github.com/istio/istio/compare/1.1.14...1.1.15><h5>SOURCE CHANGES</h5><p>Inspect the full set of source code changes.</p></a></div><h2 id=bug-fixes>Bug fixes</h2><ul><li>Fix an Envoy crash introduced in Istio 1.1.14 (<a href=https://github.com/istio/istio/issues/16357>Issue 16357</a>).</li></ul><h2 id=small-enhancements>Small enhancements</h2><ul><li>Expose <code>HTTP/2</code> window size settings as Pilot environment variables (<a href=https://github.com/istio/istio/issues/17117>Issue 1711