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Five advanced patterns that unlock the full power of TypeScript's satisfies operator—from type-safe configs to branded types that bridge runtime validation with compile-time safety.

TypeScript 6.0 marks the final JavaScript-based release with strict defaults, ES5 removal, and breaking tsconfig changes. Here's what breaks and how to fix it.

TypeScript 6.0's isolatedDeclarations replaces the type checker bottleneck in .d.ts generation, enabling parallel builds and sub-second declaration emit in monorepos.