Patch
A patch is a file or set of changes that updates software by modifying its source code or binary files, typically used to fix bugs, add features, or improve security. It is commonly applied using tools like 'patch' (from GNU diffutils) or integrated into version control systems like Git. Patches are essential for maintaining and distributing updates in software development and system administration.
Developers should learn to create and apply patches when collaborating on open-source projects, submitting bug fixes, or managing software updates without full reinstallation. Use cases include contributing to repositories via pull requests, deploying hotfixes in production systems, and applying security patches to operating systems or applications to ensure stability and compliance.