5 briefs— one-minute reads, curated for senior frontend engineers.
SvelteKit now accepts its full config inside vite.config.js, making svelte.config.js optional. This is a preview of how SvelteKit 3 will require Vite native configuration, alongside typed environment variables and File object support in remote functions.
1 source
Seven new JavaScript features reach stage 4, including precise floating-point math, built-in Base64 for binary data, and cross-realm error detection. Temporal and Explicit Resource Management slip to ES2027.
1 source
Deno 2.8 jumps from 42% to 76% Node.js compatibility, makes the npm: prefix optional, and adds a Rust-powered dependency resolver that cuts cold installs by 3.6x.
1 source
Bun is being rewritten from Zig to Rust, with AI assistance doing a significant portion of the translation. The result: faster startup, closer Node.js compatibility, and a new benchmark for AI-assisted large-scale refactoring.
2 sources
Node.js 26 ships the Temporal API enabled by default, no experimental flag. Also includes V8 14.6, `Map.getOrInsert`, pure JS `buffer`, and updated `Intl.NumberFormat` v3. Corepack has been removed.
1 source