{"slug": "svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup", "title": "Svelte 5.56 and TypeScript 6: The peerDependency Change That Breaks Your Setup", "summary": "The June 2026 Svelte update introduces TypeScript 6 across its toolchain, including a peerDependency change that silently breaks setups using a custom language server path. Five packages updated in sync to support TypeScript 6, which offers 40-60% faster incremental builds and new features. Developers must run specific commands to fix broken configurations.", "body_md": "The June 2026 Svelte update looks like a routine version bump. It is not. TypeScript 6 is now the standard across Svelte’s entire toolchain — and it shipped with a peerDependency change that silently breaks setups using a custom language server path. Here is what changed, who is affected, and what to run right now. TypeScript 6 Lands Across the Toolchain Five packages updated in sync to support TypeScript 6: The upgrade is well-motivated. TypeScript 6 delivers 40–60% faster incremental builds, more precise inference on private class fields, and the using keyword for automatic resource management. Keeping Svelte tools locked […]\n\nThe post", "url": "https://wpnews.pro/news/svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup", "canonical_source": "https://byteiota.com/svelte-556-typescript-6-peerdependency-fix-june-2026/", "published_at": "2026-06-14 15:05:52+00:00", "updated_at": "2026-06-14 15:17:34.150582+00:00", "lang": "en", "topics": ["developer-tools", "large-language-models"], "entities": ["Svelte", "TypeScript"], "alternates": {"html": "https://wpnews.pro/news/svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup", "markdown": "https://wpnews.pro/news/svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup.md", "text": "https://wpnews.pro/news/svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup.txt", "jsonld": "https://wpnews.pro/news/svelte-5-56-and-typescript-6-the-peerdependency-change-that-breaks-your-setup.jsonld"}}