[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary-rollback::en":3,"gloss-cluster-rollback::en":20,"gloss-next-rollback::en":9},{"slug":4,"category":5,"name":6,"definition":7,"meta_desc":8,"faq":9,"schema_markup":9,"related":10},"rollback","dev-tools","Rollback","A rollback is the act of reverting a running system back to a previous, known-good version — most commonly used to quickly undo a deployment that turned out to cause errors, performance problems, or incorrect behavior in production. Rollbacks are a core piece of incident response: when something goes visibly wrong shortly after a deploy, the fastest and safest fix is very often \"undo the change that just went out,\" rather than trying to hot-fix forward under pressure while an incident is actively ongoing. Why it matters for AI\u002FSaaS builders: the ability to roll back quickly and confidently is what makes frequent deployment safe — teams that deploy multiple times a day rely on a fast rollback path as their safety net, since even a well-tested change can behave unexpectedly under real production traffic and data in ways staging never revealed. A slow or risky rollback process (one that itself might fail or take 30 minutes) undermines the entire premise of shipping fast, since every deploy effectively becomes higher-stakes. How it works: the specific mechanics depend on the deployment strategy. With immutable container deployments, a rollback is often as simple as re-pointing the load balancer or orchestrator (Kubernetes, ECS) at the previous container image tag, which is already built and tested — no new build required, just a traffic switch, often completing in seconds to a couple of minutes. With database migrations involved, rollbacks are trickier, since reverting application code while leaving a schema change in place (or vice versa) can itself cause errors — well-designed migrations are written to be backward-compatible for at least one release, specifically so a code rollback doesn't require an immediate, risky database rollback too. Worked example: a team deploys a new version of their API at 2pm. By 2:15pm, their observability dashboard shows the error rate on the `\u002Fapi\u002Fcheckout` endpoint has jumped from a baseline 0.1% to 8%. Rather than trying to diagnose and hot-fix the root cause under pressure with real customers actively failing to check out, the on-call engineer runs a rollback command that re-points the production load balancer at the previous, known-good container image (which was still running in the cluster, just receiving no traffic). Within 90 seconds, the error rate drops back to baseline; the team then calmly investigates the root cause offline, with no ongoing customer impact, before attempting the fix and a fresh deploy later.","A rollback reverts a system to a previous known-good state, typically used to quickly undo a bad deployment causing production issues.",null,[11,14,17],{"slug":12,"name":13},"ci-cd","Continuous Integration \u002F Continuous Deployment (CI\u002FCD)",{"slug":15,"name":16},"containerization","Containerization",{"slug":18,"name":19},"feature-flag","Feature Flag",[21,25,28,32,35,38,41,44,47,48,51,54],{"slug":22,"category":5,"name":23,"updated_at":24},"agent","Agent","2026-08-24T02:46:36+00:00",{"slug":26,"category":5,"name":27,"updated_at":24},"ai-code-assistant","AI Coding Assistant",{"slug":29,"category":5,"name":30,"updated_at":31},"api-gateway","API Gateway","2026-08-24T02:46:37+00:00",{"slug":33,"category":5,"name":34,"updated_at":31},"api-versioning","API Versioning",{"slug":36,"category":5,"name":37,"updated_at":24},"autonomous-agent","Autonomous Agent",{"slug":39,"category":5,"name":40,"updated_at":31},"blue-green-deployment","Blue-Green Deployment",{"slug":42,"category":5,"name":43,"updated_at":31},"canary-deployment","Canary Deployment",{"slug":45,"category":5,"name":46,"updated_at":31},"chaos-engineering","Chaos Engineering",{"slug":12,"category":5,"name":13,"updated_at":24},{"slug":49,"category":5,"name":50,"updated_at":31},"circuit-breaker","Circuit Breaker",{"slug":52,"category":5,"name":53,"updated_at":31},"cli","Command-Line Interface (CLI)",{"slug":55,"category":5,"name":56,"updated_at":31},"cloud-development-environment","Cloud Development Environment (CDE)"]