A practical walkthrough of migrating real TypeScript projects to TypeScript 6, covering the key breaking changes: new compiler defaults (strict, module, target), deprecated flags (AMD, outFile, baseUrl, node10 resolver), the asymmetric module/moduleResolution value sets, and enabling erasableSyntaxOnly for Node.js native type stripping. Includes concrete patterns for replacing enums with as-const objects and rewriting parameter properties to explicit class fields.
Table of contents
ContentsWhat TypeScript 6 Changesmodule and moduleResolutionRedundant Settings RemovederasableSyntaxOnlyEnums ReworkedParameter Properties ReworkedSort: