[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[],[],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."]]