Patch (computing)

Security Patch

What is the use of a patch in computing?

A patch is a piece of software designed to fix problems with or update a computer program or its supporting data. This includes fixing security vulnerabilities and other bugs and improving the usability or performance. Though meant to fix problems, poorly designed patches can sometimes introduce new problems.

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.