[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-04 (世界標準時間)。"],[],[],null,["Upgrading from earlier versions\n\nUpgrading Cloud Service Mesh across more than one minor version (that is, 1.4.x to\n1.8.x) in one step is not officially tested or supported. This page provides\nlinks to the \"Upgrading on-premises\" guide for each Cloud Service Mesh version.\n\n- [Upgrading from 1.4 to 1.5](/service-mesh/v1.5/docs/gke-on-prem-upgrading)\n\n- [Upgrading from 1.5 to 1.6](/service-mesh/v1.6/docs/gke-on-prem-upgrading)\n\n- [Upgrading from 1.6 to 1.7](/service-mesh/v1.7/docs/gke-on-prem-upgrading)\n\n- [Upgrading from 1.7 to 1.8](/service-mesh/v1.8/docs/gke-on-prem-upgrading)\n\n- [Upgrading from 1.8 to 1.9](/service-mesh/v1.9/docs/on-premises-upgrade)\n\n- [Upgrading from 1.9 to 1.10](/service-mesh/v1.10/docs/on-premises-upgrade)\n\n- [Upgrading from 1.10 to 1.11](/service-mesh/v1.11/docs/unified-install/upgrade)\n\n- [Upgrading from 1.11 to 1.12](/service-mesh/v1.12/docs/unified-install/upgrade)\n\n- [Upgrading from 1.12 to 1.13](/service-mesh/v1.13/docs/unified-install/upgrade)\n\n- [Upgrading from 1.13 to 1.14](/service-mesh/v1.14/docs/unified-install/upgrade)\n\n- [Upgrading from 1.14 to 1.15](/service-mesh/v1.15/docs/unified-install/upgrade)\n\n- [Upgrading from 1.15 to 1.16](/service-mesh/v1.16/docs/unified-install/upgrade)\n\n- [Upgrading from 1.16 to 1.17](/service-mesh/v1.17/docs/unified-install/upgrade)\n\n- [Upgrading from 1.17 to 1.18](/service-mesh/v1.18/docs/unified-install/upgrade)\n\n- [Upgrading from 1.18 to 1.19](/service-mesh/v1.19/docs/unified-install/upgrade)\n\n- [Upgrading from 1.19 to 1.120](/service-mesh/v1.20/docs/unified-install/upgrade)\n\n| **Note:** Cloud Service Mesh 1.10 introduced networking changes that are different than 1.9 and earlier. After you upgrade to Cloud Service Mesh 1.10 or later, review [Am I Impacted?](https://istio.io/latest/blog/2021/upcoming-networking-changes/#am-i-impacted) to verify if you are impacted and for mitigation steps."]]