

Patch Lifecycle
The patch lifecycle is a structured process for managing software updates—especially important for maintaining security, stability, and compliance in your IT infrastructure. Whether you're managing operating systems, apps, or third-party software, a well-defined patch lifecycle helps minimize risks and disruptions.
Patch Management Lifecycle (End-to-End Overview)
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Discovery & Inventory
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Patch Intelligence / Assessment
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Patch Testing (QA/Staging)
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Approval & Change Control
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Deployment / Rollout
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Post-Patch Validation
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Reporting & Compliance
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Re-Evaluation & Continuous Monitoring
Popular Patch Management Tools
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Windows: WSUS, SCCM, PDQ Deploy
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Linux: Ansible, YUM/DNF, Zypper, apt
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Cloud: AWS Systems Manager Patch Manager, Azure Update Manager
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Mixed: ManageEngine, Ivanti, BigFix, Lansweeper
Best Practices
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Automate where possible but keep manual override
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Maintain a patch calendar and rotate windows
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Tag systems with "Patch Exempt" if needed—with business justification
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Keep rollback/backup plans for critical systems
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Don’t patch everything at once—phased rollout avoids mass outages
