TL;DR
A Patch Management and Change Control Policy ensures that software updates and system changes are performed in a timely, secure, and consistent manner. This helps prevent security vulnerabilities, reduce downtime, and maintain compliance. Follow this guide to create a policy that protects your infrastructure and enables controlled change.
What Is a Patch Management and Change Control Policy?
This policy governs how your business applies security patches and system changes. It defines roles, schedules, risk ratings, and testing requirements to ensure updates are not missed—and that no change introduces new issues.
It promotes both agility and stability in your IT environment.
Why Your SMB Needs This Policy
Without a change control policy, you risk threatening your IT cybersecurity posture in more ways than one:
- Unpatched vulnerabilities being exploited by attackers
- Unexpected outages from poorly tested changes
- Inconsistent configurations across devices
- Compliance gaps for frameworks like SOC 2 and ISO 27001
This policy helps align your business with security and operational resilience standards.
What to Include in a Patch and Change Policy
Scope and Applicability
Define systems, software, and devices covered, including cloud services and endpoints.
Patch Management Guidelines
- Patch sources and subscriptions (e.g., Microsoft, Apple, Linux distros)
- Frequency of patch cycles (e.g., monthly, critical-as-needed)
- Prioritization of patches by severity (e.g., CVSS scores)
- Testing and staging requirements before rollout
Change Control Procedures
- Types of changes (e.g., emergency, standard, scheduled)
- Change Request process (who submits and approves)
- Change log or ticketing system requirement
Approval Workflow
Detail who approves:
- Minor changes (IT leads)
- Major changes (cross-functional sign-off)
- Emergency changes (post-facto review)
Communication and Scheduling
- Change calendars and blackout windows
- Pre-change and post-change notifications
Validation and Rollback Plans
- How to verify success – This is often overlooked, but users shouldn’t be impacted by a patch/change. If they will be, your definition of success has to include those outliers.
- Rollback plan if the change fails – We state it again below, but a rollback plan is more important than the patch itself, in most cases.
Documentation and Review
- Maintaining a change log
- Monthly or quarterly change reviews
Step-by-Step: How to Create Your Own Patch and Change Policy
A small business doesn’t need change management until it does. By taking the time (even just one hour) to think about change and how to write a policy that protects you in the future, you’re already a step ahead to relieving future headaches and bottlenecks. Below is a quick, 6-step guide to create your own change policy at your ogranization:
1. Inventory Your Assets
List all systems and software requiring regular updates. This, in an of itself, is usually the biggest step forward you can take as an organization. A 15-minute brainstorm and a whiteboard can help you identify all of the assets you have that need updates.
2. Define Patch Schedules and Tools
Set patching frequency and document tools used. If you’re a large business, you’ll need dedicated tools to manage updates of operating systems and other applications (e.g., WSUS, Atera, Jamf). If you’re small, consider setting simple calendar reminders to quickly audit systems for status. One major flaw in the latter is not setting a person (be it IT or other) as the accountable party. Everyone’s job is to update, but one person’s job is to make sure those updates are taking place and that systems are on current patches.
3. Create a Change Request Template
Standardize how changes are proposed, evaluated, and approved. A document that handles change requests ensures that everyone is on the same page. No change goes undocumented or unapproved. Be sure to tie this process back to a RACI so that stakeholders know, instantly, where the process breaks down and who needs to pick things back up .
4. Set Approval Rules
Define roles and responsibilities for approving and executing changes. This goes without saying, but we’ve seen changes being made without concern for approvals and it’s always a nightmare trying to track things down. A failure to follow the policy sets you up for a failure of your greatest defences.
5. Build Testing and Rollback Protocols
Ensure each change is tested and has a recovery plan. Nothing hurts more than implementing a change before you’ve mapped out your exit strategy. We’ve seen executive laptops bricked during (supposedly) routing Windows upgrades. Especially 10 to 11. Without a business continuity plan in place to get a device back up and operational, a simple change or patch could take someone offline for hours. Be smart, plan your exit before you start.
6. Track, Log, and Review
Use a system for logging changes and review effectiveness regularly. We suggest using our IT Governance Workbook to track changes and approvals. It’s one place where you can document everything, so that if ever there’s a question, there’s a single-source-of-truth to back it up. You can get the whole workbook, including a change management policy template right here.
Common Mistakes to Avoid
- Applying patches without testing – Measure twice, cut once. Don’t take a patch for granted. That’s when things go sideways.
- Allowing undocumented configuration changes – All changes have to go through the policy, regardless of how trivial they may seem. A simple email domain whitelist may cause irreperable harm down the road if it’s not documented somewhere. (Incidentally, we suggest you run an annual O365 Audit on your environment to find outdated rules, users, passwords, etc.)
- Not maintaining a change log – Download our template here. Trust us, you’ll sleep better if you’re documenting relentlessly.
- Failing to notify staff of upcoming changes – No one likes to be blindsided by interruptions that could cause a loss of productivity. Be sure to overcommunicate upcoming changes so everyone has a chance to prepare.
Secure, Stable, and Scalable
Good change control is about doing things consistently right. “Right” can change, but unless you’re applying consistent rigour and documenting both workflows and outcomes, you won’t end up with good change control. Changes will take place with no rhyme, reason, or quantifiable outcome. This policy ensures every update strengthens your business instead of exposing it to new risks.
Need a Patch Management and Change Control Policy for Your Small Business? We’ve got a template for you here.
Frequently Asked Questions
Should we patch workstations and servers differently?
Yes. Servers often require more testing and scheduled downtime.
What if a vendor manages our systems?
They must follow this policy or provide proof of a comparable one. Fidalia has multiple clients for whom we manage patches and changes. While we have our own best practices, we adapt to comply with our clients’ change management policies. Our clients are in control.
Do I need a separate policy for emergency changes?
You don’t need a separate policy for emergency changes. But your change policy should include procedures that are out of the norm – where, perhaps, faster processes and documentation requirements are different than for a standard, scheduled change.