The main purpose of a software patch is to fix vulnerabilities, bugs, or errors within an existing software application. Patches can also introduce new features or enhancements to improve functionality. Regularly applying software patches is crucial for maintaining system security and ensuring optimal performance. Through updates, organizations can protect themselves from potential threats and exploitations that arise from outdated software. Additionally, patches are essential for compliance with industry regulations and standards, as they help safeguard sensitive data and maintain the integrity of applications.