Restricting changes doesn't necessarily mean reducing risk.
It's that time of year again.
Organizations are preparing for the holiday season, project teams are trying to complete their final deployments, and IT departments are announcing their annual change freezes. Or perhaps your organization calls it a deployment freeze, blackout window, restricted change period or change moratorium.
Whatever terminology you use, the objective is generally the same.
Reduce the risk of introducing changes during periods when the business is particularly vulnerable to disruption. But here's something worth considering.
Are we actually reducing risk, or are we simply moving it somewhere else? What are we actually restricting? Organizations use different terms to describe periods when changes are limited.
- Change freeze: A defined period when certain production changes are restricted or deferred.
- Blackout window: A period when normal changes are prohibited, often to protect critical business operations.
- Deployment or release freeze: A restriction on deploying software updates or releases into production.
- Restricted change period or brownout: A period when changes may proceed but require additional oversight or approval.
The terminology isn't as important as understanding what the restrictions mean.
Are all production changes prohibited? Can pre-authorized standard changes continue? What about automated deployments or critical security updates And who approves exceptions? Without clear expectations, a change restriction can quickly become a collection of inconsistent decisions.
Are we creating more risk before and after the freeze?
One of the biggest challenges with change freezes is what happens immediately before they begin. Suddenly, every project team wants to complete its outstanding work before the deadline. Application upgrades, infrastructure changes and security updates are compressed into a handful of days. Testing gets shortened. Technical resources are stretched. Dependencies between changes may be overlooked.
Now imagine an incident occurs after several changes have been implemented.
Which change caused it?
If we're introducing additional risk immediately before a freeze, are we really achieving what we intended? The same problem can occur when restrictions end. Deferred projects, maintenance activities and new deployments all compete for implementation windows. Rather than opening the floodgates, organizations should prioritize changes based on business value, dependencies and risk.
A controlled return to normal change activity can be just as important as the freeze itself.
Not every change carries the same risk
This is where risk-based Change Management becomes important. Consider two changes.
Change A: A routine, automated deployment with established testing, a proven implementation history and reliable recovery procedures.
Change B: A major infrastructure upgrade affecting multiple business-critical applications and requiring coordinated downtime.
Should both be subject to exactly the same restrictions?
Not necessarily.
Modern Change Management, recognizes that different changes require different levels of control. This is particularly relevant for organizations using Agile, DevOps and continuous delivery practices. Preventing teams from deploying small, well-tested changes may simply create larger, riskier deployments once restrictions are lifted. The question shouldn't be how many changes we're allowing.
It should be whether we understand the risk and have the appropriate controls in place.
Emergency changes still need governance
There will always be situations where a change cannot wait. Critical security vulnerabilities, infrastructure failures and major incidents may require immediate action. But emergency changes shouldn't become a convenient way around normal approvals.
Organizations need clear criteria defining what qualifies as an emergency, who can approve it, what testing and recovery procedures are required, and how the change will be reviewed afterwards. If emergency change volumes increase significantly during a freeze, it's worth asking why. Are these genuinely urgent business requirements? Or have we created restrictions that encourage teams to classify normal work as emergencies?
There's an important difference.
Make the process work for the business
Change restrictions shouldn't be established simply because IT has always implemented a year-end freeze.
They should reflect business requirements.
Retail organizations may need additional stability during peak shopping periods. Financial organizations may have critical year-end processing. Healthcare organizations may have services that cannot tolerate disruption at any time. Understanding these requirements is essential. Your ITSM platform should also support the restrictions through change calendars, risk assessments, approval workflows, notifications and reporting. Whether you're using Freshservice, ServiceNow, Halo ITSM or another platform, the objective is to make the rules visible and consistently applied.
Not to create more administration.
Did the change freeze actually work?
Here's something organizations often overlook.
Once the freeze ends, we return to business as usual without evaluating whether the restrictions delivered any value.
- Did we experience fewer change-related incidents?
- Did emergency changes increase?
- How many exceptions were approved?
- Did deferred changes create a backlog that introduced additional risk?
- Were important business outcomes delayed?
These are the measures that help determine whether the restrictions were effective. Simply having fewer changes during a particular period doesn't necessarily mean we've improved service stability. We need to understand the impact of the decisions we made.
Six ways to improve your next change freeze
If your organization is preparing for a restricted change period, here are six practical activities I'd recommend.
- Define the restrictions. Be clear about affected services, change types, dates and permitted exceptions.
- Engage the business. Understand critical operating periods and the consequences of delaying changes.
- Review upcoming changes. Identify potential conflicts, dependencies and changes that can be safely deferred.
- Apply risk-based controls. Determine which changes can proceed and what additional approvals or safeguards are required.
- Manage the backlog. Plan for both the pre-freeze rush and the return to normal change activity.
- Review the results. Evaluate incidents, exceptions, change performance and stakeholder feedback to improve future restrictions.
None of these activities requires an overly complicated Change Management process.
What they require is planning, communication and an understanding of how changes affect the services we deliver.
Change Management should enable change, not simply restrict it
A change freeze can be a valuable risk management tool.
But preventing changes from happening doesn't automatically mean we have an effective Change Management practice.
At Blackfriar Consulting, we emphasize that Change Management works best when it's integrated with Incident, Problem, Release and Deployment, Configuration, and Performance and Improvement practices.
Together, these processes help organizations understand risk, introduce changes safely and learn from the results.
The objective shouldn't simply be fewer changes. It should be fewer disruptions, better outcomes and greater confidence in our ability to introduce change safely.
So, as your organization prepares for its next change freeze, ask yourself one question:
Are we managing the risk of change, or are we just managing the calendar?
The answer might tell you quite a bit about the maturity of your Change Management practice.