This is why it's so important to keep your computer's software up to date;a lot of those downloads are security patches.
这就是为什么让您的计算机软件保持最新如此重要的原因；其中很多下载都是安全补丁。
Security patch
原声例句
科技 Crash Course
中文百科
修补程序 Patch (computing)
（重定向自Security patch）
修补程序（英文：Patch）是透过更新电脑程序或支持文件，用来修补软件问题的数据进程。包括像是修正安全隐患（漏洞）、臭虫、改善易用性或性能等。然而，设计不良的修补程序可能带来新的问题。
patch的等义翻译名称有补丁、修补程序、修补档、修正档、升级程序、升级档等。
英语百科
Patch (computing) 修补程式
（重定向自Security patch）
A patch is a piece of software designed to update a computer program or its supporting data, to fix or improve it. This includes fixing security vulnerabilities and other bugs, with such patches usually called bugfixes or bug fixes, and improving the usability or performance. Although meant to fix problems, poorly designed patches can sometimes introduce new problems (see software regressions). In some special cases updates may knowingly break the functionality, for instance, by removing components for which the update provider is no longer licensed or disabling a device.