Deno v2.9.4 released!

NewsBot · 23 July 2026 18:16

Deno v2.9.4 has been released.

2.9.4 / 2026.07.23

feat(desktop): enable --hmr for React Router (#35900)

feat(ext/node): add a byteLength/length parameter to
Buffer.indexOf/lastIndexOf/includes (#35872)

feat(ext/node): support raw chacha20 cipher in crypto.createCipheriv (#36016)

feat: upgrade V8 to 150.2.0 (#36098)

fix(add): support --minimum-dependency-age flag in deno add/remove (#36099)

fix(cache): store Web Cache under origin data (#36145)

fix(canvas): require FFI permission for native window handles (#36080)

fix(clean): reject symlinked node_modules cleanup roots (#36190)

fix(compile): bump libsui to 0.16.4 to fix Windows resource SizeOfImage
(#36242)

fix(core): allow dynamic imports during cached module evaluation (#36258)

fix(core): bound error graph conversion (#36070)

fix(core): enforce JSON requests in FsModuleLoader (#36137)

fix(core): handle malformed error constructors (#36071)

fix(core): stop rejected dynamic imports before loading (#36136)

fix(desktop): make BrowserWindow bindings typeable (#35907)

fix(desktop): preserve binding wrappers after lazy op upgrade (#36065)

fix(desktop): strip runtime extension from app name (#36060)

fix(ext/napi): cancel async sends after close (#36077)

fix(ext/napi): scope callback info per invocation (#36076)

fix(ext/node): apply backpressure to http2 stream writes (#36044)

fix(ext/node): don’t leave 0-byte .heapsnapshot files near the heap limit
(#36113)

fix(ext/node): implement worker_threads.locks via Web Locks (#35963)

fix(ext/node): node:sqlite backup() and deserialize() argument validation
(#36127)

fix(ext/node): retry DNS query when its per-attempt timeout fires (#35955)

fix(ext/node): stop http2 file reads on stream close (#36061)

fix(ext/web): handle failed webtransport datagram setup (#36067)

fix(ext/webidl): implement async_sequence for ReadableStream.from (#35976)

fix(fetch): bound multipart part headers (#36096)

fix(fmt): keep…

Link: Release v2.9.4 · denoland/deno · GitHub