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TC39 Type Annotations Proposal in 2026: What JavaScript Developers Need to Know Before It Hits Stage 4
June 27, 2026
The TC39 Type Annotations proposal promised to bring native type syntax to JavaScript. Four years after stalling at Stage 1, here's what actually happened and what developers should do instead.
Strict Mode Isn't Enough: Using TypeScript's New Variance Annotations to Catch Subtle Generic Bugs
June 26, 2026
Most generic type bugs stem from variance issues that strict mode doesn't catch. TypeScript's new 'in' and 'out' annotations finally give developers explicit control over covariance and contravariance in generic parameters.
How TypeScript 5.7's --module nodenext Changes Are Breaking Legacy Express Apps (and How to Fix Them)
June 25, 2026
TypeScript 5.7's stricter --module nodenext enforcement breaks three critical patterns in Express apps. Here's what changed and how to migrate without rewriting your entire codebase.
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