TypeScript 6 and 7 – What UI5 TypeScript Developers Need to Know in 2026

TypeScript 6 and 7 represent the biggest shift in TypeScript’s history — a Go rewrite promising 10x speed, but at the cost of many incompatible changes and breaking every tool that relies on the compiler API. We checked what this means for UI5 TypeScript development: which parts are unaffected, which need attention, and why we’re deprecating @types/openui5. Plus: the */ts-types-esm packages are no longer released. Here’s the full picture.

 

​ TypeScript 6 and 7 represent the biggest shift in TypeScript’s history — a Go rewrite promising 10x speed, but at the cost of many incompatible changes and breaking every tool that relies on the compiler API. We checked what this means for UI5 TypeScript development: which parts are unaffected, which need attention, and why we’re deprecating @types/openui5. Plus: the */ts-types-esm packages are no longer released. Here’s the full picture.   Read More Technology Blog Posts by SAP articles 

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