Introduction This guide provides the upgrade procedures for VxFlex OS components. The following table lists the upgrade support matrix: Table 1. Upgrade support matrix ScaleIO VxFlex OS base version Upgrade path Supporting documentation Earlier than v1.32.6 Consult Customer Support v1.32.6 Upgrade to ScaleIO v220.127.116.11 (intermediate step). Upgrade to VxFlex OS v3.x. VxFlex OS v18.104.22.168 Upgrade Guide v2.0 or v22.214.171.124 Upgrade to ScaleIO v126.96.36.199 (intermediate step). Upgrade to ScaleIO v188.8.131.52 (intermediate step). Upgrade to VxFlex OS v3.x. ScaleIO v184.108.40.206 Upgrade Guide VxFlex OS v220.127.116.11 Upgrade Guide v18.104.22.168 through v22.214.171.124 Upgrade to ScaleIO v126.96.36.199 (intermediate step). Upgrade to VxFlex OS v3.x. ScaleIO v188.8.131.52 Upgrade Guide (https://support.emc.com/docu88029) Upgrade VxFlex OS v3.x Guide v184.108.40.206, v2.5 Upgrade to VxFlex OS v3.0 (intermediate step). Upgrade to VxFlex OS v3.0.1 Upgrade VxFlex OS v3.x Guide v2.6.x, v3.0, v3.0.0.x Upgrade to VxFlex OS v3.0.1 Upgrade VxFlex OS v3.x Guide Note: A new patched SVM is introduced in v220.127.116.11. If you are using VxFlex OS v2.x with a SLES-based SVM, you can replace the SVM with a newly patched CentOS 7.5 based SVM. The replace SVM feature is part of the release and is detailed in this guide. Note: On v3.0, or v3.0.0.x systems running on VMware (CentOS 7.5 based SVM), the CentOS operating system must be upgraded to CentOS 7.6 after upgrade of the VxFlex OS Gateway, but before upgrading the remaining system components. For more information about operating system patching, see the Configure and Customize VxFlex OS Guide. Child TopicsAutomated and manual upgrade of software componentsYou can upgrade VxFlex OS software components with automated tools, in a non-disruptive manner, or manually upgrade components. Upgrade limitationsCheck that you are aware of upgrade limitations before commencing the upgrade process. Parent topic IntroductionUpgrade VxFlex OS software and firmware components to the latest compatible versions, using automated and manual processes.