lass=title-area><div style=width:100%><h1 id=title>升级说明</h1></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=安装><a href=#installation>安装</a><li role=none aria-label=流量管理><a href=#traffic-management>流量管理</a><li role=none aria-label=策略和遥测><a href=#policy-telemetry>策略和遥测</a><li role=none aria-label=安全><a href=#security>安全</a></ol><hr></div></nav><p>本页描述了从 Istio 1.0 升级到 1.1 时需