A "bug fix" refers to a correction made to software or a system to resolve an error or flaw, known as a "bug." Bugs can cause programs to behave unexpectedly, leading to crashes, incorrect outputs, or security vulnerabilities. Developers identify these issues through testing and user feedback, then create a solution to ensure the software functions as intended. Once a bug fix is developed, it is typically released as part of a software update. This update may include other improvements or features, but its primary purpose is to address the specific bugs. Regular bug fixes are essential for maintaining the reliability and security of software applications, such as web browsers or mobile apps.