Deno 2.9.4 patch release
- Sources: Deno v2.9.4 release
- Summary: Deno released 2.9.4 on 2026-07-23, a patch on the 2.9 line. It upgrades V8 to 150.2.0, adds a raw ChaCha20 cipher and a byteLength parameter to Buffer index methods in the Node compatibility layer, and fixes several core module-loading and desktop-bundling issues, including requiring FFI permission for native window handles.
- Why it matters: Routine maintenance for the runtime, with a permission tightening on native window handles and continued Node-compat and desktop-bundling work.