Posts tagged “breaking changes”
4 posts found
TypeScript 6.0 Type-Only Imports Are Now Enforced: What verbatimModuleSyntax Actually Breaks in Real Codebases
August 10, 2026
The verbatimModuleSyntax flag eliminates elision guessing, but it breaks mixed import statements, re-exports, and side-effect modules in production codebases. Here's what actually fails and how to fix it.
TypeScript 6.0 Released: Every Breaking Change You Need to Know
July 6, 2026
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.
Migrating a 200k-Line Codebase from TypeScript 5.x to 6.0: What Actually Broke
July 2, 2026
A detailed account of migrating 200,000 lines from TypeScript 5.x to 6.0, covering the three breaking changes that generated thousands of errors, the migration strategy that failed first, and the tooling that ultimately saved the project.
TypeScript 6.0 Released: Strict Mode by Default, ES5 Dropped, and Why This Is a Breaking Migration
June 15, 2026
TypeScript 6.0 ships with strict mode enabled by default, drops ES5 support, and changes module resolution. Here's how to migrate production codebases without breaking CI pipelines.