In my view, the biggest difference between traditional IT Operations and SRE is the shift from a reactive, manual approach to a proactive, automation-driven mindset focused on reliability as a measurable goal. Traditional IT Ops teams usually concentrate on maintaining uptime, responding to incidents, and managing infrastructure manually, whereas SRE treats operations like a software problem by emphasizing automation, monitoring, and continuous improvement through concepts like SLIs, SLOs, and error budgets. This means instead of just fixing issues when they occur, SRE teams work on preventing them by building scalable systems, reducing toil, and improving system resilience over time. Another key change is how responsibility is shared, as SRE encourages closer collaboration between development and operations, breaking down silos and aligning everyone around service reliability and performance. Overall, this evolution has made teams more data-driven, efficient, and capable of handling modern, fast-paced environments where frequent deployments and high availability are critical.