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What type of software change is implemented to rapidly fix a critical issue?

  1. Patch

  2. Hotfix

  3. Upgrade

  4. Rollback

The correct answer is: Hotfix

A hotfix is a specific type of software change designed to address critical issues quickly and efficiently. Hotfixes are typically deployed to resolve urgent problems that require immediate attention, such as security vulnerabilities or system failures that could impact users or business operations. This rapid deployment is essential for minimizing downtime and ensuring that systems remain secure and functional. In contrast, a patch generally refers to a broader update that may include several fixes and enhancements, but it may not be as urgent or specifically targeted as a hotfix. An upgrade involves a significant change or improvement to software, often introducing new features or capabilities, and is usually planned rather than urgent. Rollback implies reverting to a previous version of the software, which might be necessary after an unsuccessful update or to recover from issues, but it does not inherently address the critical issue at hand. The focus of a hotfix is its immediacy in addressing significant disruptions, making it the most appropriate term in this context.