Patch

A patch is an update to existing software that is primarily intended to fix specific bugs, vulnerabilities, or defects within the program. While patches may occasionally include new functionality, their main purpose is to enhance security or improve the stability and performance of the software.

Patches are critical in the software maintenance lifecycle and are usually released after the software's initial deployment. Developers create patches when they discover vulnerabilities that could be exploited by hackers, or when users report bugs that hinder the software's functionality. By applying patches, users can ensure that their software remains secure against potential threats and continues to function as intended.

The process of patching involves downloading and installing an update, which is often distributed via the software’s own update system or through the developer's website. For major software systems, especially operating systems and widespread applications, patches are typically issued regularly and can be automatically installed to ensure that all users receive the necessary updates without delay.

Effective patch management is crucial for both individual users and organizations, as it helps to protect sensitive data and prevent disruptions caused by software malfunctions. Ignoring patches can leave systems vulnerable to attacks that exploit known issues, potentially leading to data breaches, system downtime, or loss of data integrity.