1# JS API Diff
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3OpenHarmony 3.1 Release版本相较于OpenHarmony 3.0 LTS版本的JS API变更，参见各子系统的详细记录：
4- [元能力](js-apidiff-ability.md)
5- [无障碍](js-apidiff-accessibility.md)
6- [帐号](js-apidiff-account.md)
7- [ArkUI开发框架](js-apidiff-ace.md)
8- [电源服务](js-apidiff-battery.md)
9- [包管理](js-apidiff-bundle.md)
10- [基础通信](js-apidiff-communicate.md)
11- [语言编译器运行时](js-apidiff-compiler-and-runtime.md)
12- [DFX](js-apidiff-dfx.md)
13- [分布式数据管理](js-apidiff-distributed-data.md)
14- [分布式硬件](js-apidiff-distributed-hardware.md)
15- [事件通知](js-apidiff-event-and-notification.md)
16- [文件管理](js-apidiff-file-management.md)
17- [位置服务](js-apidiff-geolocation.md)
18- [全球化](js-apidiff-global.md)
19- [图形图像](js-apidiff-graphic.md)
20- [Misc软件服务](js-apidiff-misc.md)
21- [多模输入](js-apidiff-multi-modal-input.md)
22- [OS媒体软件](js-apidiff-multimedia.md)
23- [网络管理](js-apidiff-network.md)
24- [资源调度](js-apidiff-resource-scheduler.md)
25- [安全基础能力](js-apidiff-security.md)
26- [泛Sensor服务](js-apidiff-sensor.md)
27- [应用](js-apidiff-settings.md)
28- [软总线](js-apidiff-soft-bus.md)
29- [电话服务](js-apidiff-telephony.md)
30- [USB服务](js-apidiff-usb.md)
31- [用户IAM](js-apidiff-user-authentication.md)
32- [窗口管理](js-apidiff-window.md)
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