What type of software update is designed to fix an immediate and specific issue?

A hotfix is specifically designed to address an immediate and specific issue, often a critical bug or security vulnerability that needs rectification without delay. Unlike broader updates or patches, which might include multiple improvements or enhancements over time, a hotfix is generally targeted and deployed as a quick solution to an identified problem.

This type of software update is particularly valuable in environments where downtime or security risks need to be minimized. It allows for rapid recovery or mitigation of issues that could potentially disrupt services or expose systems to risks.

In contrast, a patch typically serves to fix bugs or vulnerabilities but may also include enhancements and is not always aimed at urgent problems. An update can refer to general improvements and new features, which may not be urgent. An upgrade usually indicates a significant change or new version of software, often involving numerous changes or enhancements, rather than a specific fix for an immediate issue.