The update time of the entity that this mutation is being applied
to. If this does not match the current update time on the server, the
mutation conflicts.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis webpage provides reference documentation for the \u003ccode\u003eMutation\u003c/code\u003e class within the Google Cloud Datastore v1 API, specifically for version 4.9.0, and it has other versions available as well.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMutation\u003c/code\u003e class, which is used to apply changes to an entity, such as inserting, updating, deleting, or upserting, implements interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eKey properties of the \u003ccode\u003eMutation\u003c/code\u003e class include \u003ccode\u003eBaseVersion\u003c/code\u003e, \u003ccode\u003eConflictDetectionStrategyCase\u003c/code\u003e, \u003ccode\u003eDelete\u003c/code\u003e, \u003ccode\u003eInsert\u003c/code\u003e, \u003ccode\u003eOperationCase\u003c/code\u003e, \u003ccode\u003eUpdate\u003c/code\u003e, \u003ccode\u003eUpdateTime\u003c/code\u003e, and \u003ccode\u003eUpsert\u003c/code\u003e, which allow for detailed control over the entity manipulation process.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMutation\u003c/code\u003e class has two constructors, a default constructor and one that takes another \u003ccode\u003eMutation\u003c/code\u003e object as a parameter for making copies.\u003c/p\u003e\n"],["\u003cp\u003eThe page also lists several older versions, all the way down to version 3.2.0, and has version 4.15.0, marked as the latest version, available as well.\u003c/p\u003e\n"]]],[],null,[]]
