Deno v2.6.5 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: deno · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 3 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Deno v2.6.5. Source highlight: feat(ext/canvas): support gif, webp for `createImageBitmap` (#31402)

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (3)

feat(ext/canvas): support gif, webp for `createImageBitmap` (#31402)
feat(ext/web): add performance.clearResourceTimings() and
feat(node/fs): implement FileHandle.readableWebStream() (#31745)

🔧 Bug Fixes & Patches (6)

fix(audit): respect --level flag for exit code (#31721)
fix(ci): rename `trusted-signing-action` to `artifact-signing-action` (#31849)
fix(cli/test): close Node HTTP connections before sanitizer check (#31782)
fix(ext/fetch): read file urls via vfs (#31814)
fix(ext/fetch): support ipv6 destination host with http and socks proxy
fix(ext/node): `DatabaseSync` garbage collection invalidating associated

📄 View Raw Release Notes (Original Developer Log)

### 2.6.5 / 2026.01.15 - feat(ext/canvas): support gif, webp for `createImageBitmap` (#31402) - feat(ext/web): add performance.clearResourceTimings() and setResourceTimingBufferSize() (#31603) - feat(node/fs): implement FileHandle.readableWebStream() (#31745) - fix(audit): respect --level flag for exit code (#31721) - fix(ci): rename `trusted-signing-action` to `artifact-signing-action` (#31849) - fix(cli/test): close Node HTTP connections before sanitizer check (#31782) - fix(ext/fetch): read file urls via vfs (#31814) - fix(ext/fetch): support ipv6 destination host with http and socks proxy (#31683) - fix(ext/node): `DatabaseSync` garbage collection invalidating associated resources (#31737) - fix(ext/node): add tls.setDefaultCACertificates support (#31522) - fix(ext/node): emit deprecation warning for SlowBuffer (#31772) - fix(ext/node): fix use-after-free in StatementSync JS iterator (#31770) - fix(ext/node): use correct block sizes for HMAC algorithms (#31775) - fix(ext/web): handle empty TextDecoder input when stream is true (#31691) - fix(io): ignore `BrokenPipe` error in `op_print` (#31844) - fix(node/child_process): ChildProcess constructor without args (#31838) - fix(node/child_process): improve arg type validation for execFile and fork (#31829) - fix(node/child_process): reject null bytes in arguments (#31828) - fix(node/child_process): use correct syscall name in spawn error (#31836) - fix(npm): deduplication pass for initially partially resolved graphs (#31787) - fix(runtime): handle `options` parameter in `Deno.errors.*` constructors (#31510) - fix(task): preserve signal-based exit codes for child processes (#31789) - fix(tsgo): nil deref for exported symbols (#31786) - fix(webgpu): correctly expose `GPUCompilationInfo` & `GPUCompilationMessage` (#31780) - fix: add more details when panicking getting dir path from deno.json (#31805) - fix: allow multiple --allow-all args (#31833) - fix: queue dynamic imports for modules with pending TLA (#31670) - fix: update config schema for read permission to include ignore property (#31785)

← Older Version Deno v2.6.4 Newer Version → Deno v2.6.6