Key Features:

Bug Fixes and Issue Resolution:
Corrective Maintenance: Addressing issues that arise after software deployment, such as bugs, errors, and glitches. 
Troubleshooting: Diagnosing and resolving technical problems reported by users or identified through monitoring. 
Software updates and patches: Implementing fixes and updates to address security vulnerabilities and improve software stability. 
Performance Enhancement and Optimization:
Perfective Maintenance: Improving software functionality, performance, and user experience. 
Adaptability and Scalability:
Adaptive Maintenance: Adapting software to changes in the environment, including hardware, operating systems, and user requirements. 
Feature Enhancements: Adding new features and functionalities to meet evolving user needs and business requirements. 
User Support and Training: End-User Support: Providing assistance to users with questions, issues, and troubleshooting. 

Benefits:

Improved Performance: Regular maintenance and updates can lead to significant performance improvements. 
Enhanced Security: Staying up-to-date with security patches and updates is crucial for protecting against vulnerabilities. 
Increased Reliability: Addressing bugs and potential issues ensures the software remains reliable and stable. 
Better User Experience: Enhancements and updates can improve the user experience and make the software easier to use. 
Cost Savings: Proactive maintenance can prevent costly downtime and reduce long-term support costs.