1 Billion Build Minutes Later: How we reinvented CI/CD at Atlassian

This post details Atlassian's strategic decision and execution to consolidate its entire CI/CD landscape onto Bitbucket Pipelines, migrating from fragmented solutions like Jenkins and Bamboo. It outlines the key requirements for scaling CI/CD to over 9,000 users, including enterprise-grade scale, reliability, flexibility, centralized structure, extensibility, and future-proofing for AI. The post quantifies the impact of this migration, reporting significant reductions in pipeline build time (75%), lead time (96%), and recovery time (65%), alongside increased deployment frequency and developer satisfaction. It highlights specific enhancements like autoscaling runners, scheduled pipelines, parallel pipelines, and dynamic pipelines, and introduces AI features like Pipeline Troubleshooter and Deployment Summarizer.