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How to Test a Node.js Major Version Upgrade Before Production
Most Node.js upgrades fail in the places your tests never look. Here is a repeatable way to find the breakage in CI instead of in production.
Languages
13 articlesRuntime behavior, type systems, and the tradeoffs behind the language your team already argues about.
13 articles
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LanguagesHow to Upgrade to JDK 27: G1 Default and Compact Object Headers
JDK 27 changes two defaults that can move your heap numbers and pause times. Here is how to test them before the upgrade reaches production.
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LanguagesNode.js Release Schedule Change: What One Release a Year Means for Your Upgrade Plan
Node.js is dropping odd-numbered releases after version 26. Here is what the new Alpha channel and the 2027 LTS dates change for your upgrade calendar.
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LanguagesHow to Upgrade to Go 1.27: JSON v2 Defaults, net/http Changes and a Test Checklist
Go 1.27.3 shipped October 19 with a security fix. Before you bump the toolchain, check what the stricter JSON engine will reject.
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LanguagesDeno Is Joining Cloudflare: What the 12-Month Clock Means for Your Runtime
Deno Deploy shuts down in six months, and the runtime gets one more year of fixes. Here is how to sort your projects by risk.
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LanguagesHow to Upgrade to Python 3.15: UTF-8 Default, Lazy Imports and Other Gotchas
Python 3.15 shipped on October 9 with a UTF-8 default, lazy imports and a faster JIT. Here is what to test before you move services over.
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LanguagesHow to Upgrade to Node.js 26 Before It Goes LTS on October 28
Node.js 26 becomes the long-term support line next week, and Node 24 has just moved to maintenance. Here is what breaks, what is new, and a safe rollout order.
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LanguagesIs WebAssembly Production-Ready for Backend Workloads in 2026?
Owen Kasprzak on WebAssembly production backend: what actually matters for engineering teams making this call.
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LanguagesIs TypeScript's Strict Mode Worth the Migration Pain?
Owen Kasprzak on TypeScript strict mode migration: what actually matters for engineering teams making this call.
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LanguagesRust vs. Go in 2026: Picking a Language for New Backend Services
Owen Kasprzak on Rust vs Go backend services: what actually matters for engineering teams making this call.
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LanguagesPython's async/await: The Mistakes That Keep Showing Up in Code Review
Owen Kasprzak on Python async await mistakes: what actually matters for engineering teams making this call.
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LanguagesMemory-Safe Languages Compared: Rust, Swift, and Modern C++
Owen Kasprzak on memory-safe languages compared: what actually matters for engineering teams making this call.