VMs are eligible to receive infrastructure and hypervisor updates as they become available. This may result in more maintenance operations (live migrations or terminations) for the VM than the PERIODIC and RECURRENT options.
Recurrent
VMs receive infrastructure and hypervisor updates on a periodic basis, minimizing the number of maintenance operations (live migrations or terminations) on an individual VM. This may mean a VM will take longer to receive an update than if it was configured for AS_NEEDED. Security updates will still be applied as soon as they are available. RECURRENT is used for GEN3 and Slice of Hardware VMs.
UndefinedMaintenanceInterval
A value indicating that the enum field is not set.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eGoogle.Cloud.Compute.V1.NodeGroup.Types.MaintenanceInterval\u003c/code\u003e documentation is 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation covers versions ranging from 1.0.0 up to the latest 3.6.0 for the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e API.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eNodeGroup.Types.MaintenanceInterval\u003c/code\u003e enum specifies the frequency of planned maintenance events, with options including \u003ccode\u003eAS_NEEDED\u003c/code\u003e and \u003ccode\u003eRECURRENT\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAS_NEEDED\u003c/code\u003e maintenance interval allows for VMs to receive updates as soon as they are available, while \u003ccode\u003eRECURRENT\u003c/code\u003e applies updates on a periodic basis.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUndefinedMaintenanceInterval\u003c/code\u003e is a value that indicates the enum field is not set, and the assembly for the \u003ccode\u003eNodeGroup.Types.MaintenanceInterval\u003c/code\u003e enum is \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]