DIFFERENTIAL UPGRADE PACKAGE PROCESSING METHOD AND DEVICE, UPGRADE METHOD, SYSTEM AND DEVICE

摘要

A differential upgrade package processing method and device, upgrade method, system and device. The differential upgrade package processing method comprises: receiving an upgrade request sent by a client, wherein the upgrade request is used to indicate the request of the client to upgrade a first version of a specified software to a third version; issuing a third differential upgrade package for upgrading the first version of the specified software to the third version to the client, wherein the third differential upgrade package is generated through a first differential upgrade package and a pre-stored second differential upgrade package, the first differential upgrade package is a differential upgrade package used to upgrade a second version of the specified software to the third version, the second differential upgrade package is a differential upgrade package used to upgrade the first version of the specified software to the second version, the third version is higher than the second version, and the second version is higher than the first version.