--- title: Best System Design Codex posts — April 2025 | daily.dev description: The most upvoted System Design Codex posts from April 2025, curated by the daily.dev community. canonical: https://daily.dev/sources/systemdesigncodex/best-of/2025/04 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/systemdesigncodex/best-of/2025/04 og:type: website og:site_name: daily.dev og:title: Best System Design Codex posts — April 2025 | daily.dev og:description: The most upvoted System Design Codex posts from April 2025, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of System Design Codex — April 2025 1. 1 [](https://daily.dev/posts/5-must-know-deployment-strategies-nc4p67aq8 "5 Must-Know Deployment Strategies") Article System Design Codex · 1y 5 Must-Know Deployment Strategies Deploying new features to an application is a critical phase in the software development lifecycle. This post explores five popular deployment strategies—Blue/Green Deployment, Canary Deployment, A/B Testing, Feature Flag Deployment, and Rolling Deployment—detailing their pros, cons, and use cases. Choosing the right strategy depends on factors such as downtime tolerance, user base size, infrastructure complexity, cost, and the need for experimentation. 337 4 [See all System Design Codex archives](/sources/systemdesigncodex/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/systemdesigncodex/best-of/2025/04#page","url":"https://daily.dev/sources/systemdesigncodex/best-of/2025/04","name":"Best System Design Codex Posts — April 2025","description":"The most upvoted System Design Codex posts from April 2025, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/systemdesigncodex/best-of/2025/04#items","numberOfItems":1,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/5-must-know-deployment-strategies-nc4p67aq8","name":"5 Must-Know Deployment Strategies"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"System Design Codex","item":"https://daily.dev/sources/systemdesigncodex"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/systemdesigncodex/best-of"},{"@type":"ListItem","position":5,"name":"April 2025"}]}]} ```