[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-09-04。"],[],[],null,["# Maintenance changelog\n\n[MySQL](/sql/docs/mysql/maintenance-changelog \"View this page for the MySQL database engine\") \\| [PostgreSQL](/sql/docs/postgres/maintenance-changelog \"View this page for the PostgreSQL database engine\") \\| SQL Server\n\n\u003cbr /\u003e\n\nThis page explains maintenance changelogs and provides links to changelogs for\neach database version.\n\nCloud SQL regularly updates the software on Cloud SQL instances\nthrough new maintenance versions. With new maintenance versions, Cloud SQL\nreleases new features, security patches, bug fixes, performance improvements,\nand more. Your Cloud SQL instances are kept up-to-date with the\nlatest maintenance version through self-service maintenance or through scheduled\nmaintenance, which Cloud SQL performs once every few months.\n\nSQL Server maintenance changelogs\n---------------------------------\n\n- [SQL Server 2017 Enterprise maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2017-enterprise)\n- [SQL Server 2017 Express maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2017-express)\n- [SQL Server 2017 Standard maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2017-standard)\n- [SQL Server 2017 Web maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2017-web)\n- [SQL Server 2019 Enterprise maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2019-enterprise)\n- [SQL Server 2019 Express maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2019-express)\n- [SQL Server 2019 Standard maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2019-standard)\n- [SQL Server 2019 Web maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2019-web)\n- [SQL Server 2022 Enterprise maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2022-enterprise)\n- [SQL Server 2022 Express maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2022-express)\n- [SQL Server 2022 Standard maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2022-standard)\n- [SQL Server 2022 Web maintenance changelog](/sql/docs/sqlserver/maintenance-changelog/sqlserver-2022-web)"]]
