The Spider-Man of package managers, WebAssembly heresies, and the curious case of the missing Zeit cofounder

Bytes by ui.dev

TypeScript 6.0 has been released as the last version built on its JavaScript codebase, serving as a transition before TypeScript 7.0 introduces a Go-based compiler with native speed and multi-threaded type checking. Key changes include strict mode enabled by default, module defaulting to esnext, target floating to the current ES spec (es2025), and types defaulting to an empty array — a change that may break many projects but promises 20–50% speed improvements. New features include built-in Temporal API types and Map.getOrInsert support. Several legacy options like outFile, baseUrl, and AMD/UMD/SystemJS targets are deprecated or removed. The newsletter also covers pnpm 11 beta, Zero 1.0 stable release, a React useState closure gotcha, and various other JavaScript ecosystem links.

TypeScript 6.0 is your final warning

I believe in Typescript supremacy

There are two major migrations coming.
I tested the tsgo fork made by JetBrains and noticed a slight difference in how types are resolved, especially in libraries like EffectTS and StyledComponents.

Nice I already upgraded to 6 🙌🏻
And I can’t wait for this tsgo to happen!!

I’ve been using ts7 in production and no complains at the moments. WebStorm support is nice though there are mild bugs, like duplicated suggestions, which I relate to the unsupported type engine (from my inexpert PoV).

why are people so obsessed with types? Can’t you just leave duck-type languages alone? First python, then javascript…