--- title: "Deploy Safety: Reducing customer impact from change" url: https://daily.dev/posts/deploy-safety-reducing-customer-impact-from-change-imwowkfhs source_url: https://slack.engineering/deploy-safety/ type: article source: "Slack engineering" published: 2025-10-07T16:42:57.404Z updated: 2025-10-07T16:43:21.216Z tags: ["devops", "automation", "cicd"] reading_time: 11 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Deploy Safety: Reducing customer impact from change **[Slack engineering](https://daily.dev/sources/slack)** · 11 min read · 0 upvotes · 0 comments ## Summary Slack reduced customer-impacting incidents by 90% through their Deploy Safety Program, which focused on automated detection and rollback within 10 minutes. The initiative addressed the fact that 73% of customer-facing incidents were triggered by code deployments. Key strategies included metrics-based deployment monitoring, automatic rollbacks, and iterative investment in projects showing measurable results. The program emphasized maintaining development velocity while improving reliability through automated guardrails rather than manual processes. Success required executive alignment, patience with trailing metrics, direct team engagement, and consistent tooling adoption across hundreds of internal services. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Slack Enhances Chef Infrastructure to Improve Safety and Reduce Blast Radius in Deployments](https://daily.dev/posts/slack-enhances-chef-infrastructure-to-improve-safety-and-reduce-blast-radius-in-deployments-bbqstolyp) · InfoQ · 0 upvotes · 0 comments - [Why Launch-Time Reliability Is Especially Critical](https://daily.dev/posts/why-launch-time-reliability-is-especially-critical-wfy8kzxjw) · The New Stack · 0 upvotes · 0 comments --- Tags: [#devops](https://daily.dev/tags/devops), [#automation](https://daily.dev/tags/automation), [#cicd](https://daily.dev/tags/cicd) [View this post on daily.dev](https://daily.dev/posts/deploy-safety-reducing-customer-impact-from-change-imwowkfhs)