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42 pages
The Progressive Delivery Playbook
A practical framework for releasing without fear
Learn how engineering teams at high-growth companies ship daily without outages — using feature flags, canary deployments, and automated rollback.
- Feature flag patterns
- Canary deployment strategy
- Rollback playbooks
- Incident response
38 pages
A/B Testing at Scale
Statistical rigor meets shipping velocity
Everything you need to run experiments that produce real insights — from designing the hypothesis to shipping the winner and archiving the loser.
- Experiment design
- Statistical significance
- Bayesian vs frequentist
- Revenue-level metrics
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