What is the purpose of a change window and why is it scheduled?

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Change windows are planned timeframes for performing deployments and maintenance in a controlled way. The main idea is to minimize disruption for users by aligning work with periods of lower traffic and giving the team dedicated time to monitor, verify, and rollback if needed. Scheduling provides a safer, more predictable process: it coordinates across teams, allows testing and validation in staging beforehand, and ensures support is ready if something goes wrong. The focus is on reducing impact during maintenance, not on pushing changes during busy times or skipping tests. Choosing lower-traffic windows helps keep the service stable and users largely unaffected if issues arise.