Deno v1.45.4 — 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

⚡ Improvements 1 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Deno v1.45.4. Source highlight: Reland "fix: CFunctionInfo and CTypeInfo leaks (#24634)" (#24692)

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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.

⚡ Performance & Enhancements (1)

perf: update deno_doc (#24700)

🔧 Bug Fixes & Patches (6)

Reland "fix: CFunctionInfo and CTypeInfo leaks (#24634)" (#24692)
fix(ext/fetch): respect authority from URL (#24705)
fix(ext/fetch): use correct ALPN to proxies (#24696)
fix(ext/node): read correct CPU usage stats on Linux (#24732)
fix(ext/node/net): emit `error` before `close` when connection is refused
fix(future): Emit `deno install` warning less often, suggest `deno install` in

📄 View Raw Release Notes (Original Developer Log)

### 1.45.4 / 2024.07.26 - Reland "fix: CFunctionInfo and CTypeInfo leaks (#24634)" (#24692) - fix(ext/fetch): respect authority from URL (#24705) - fix(ext/fetch): use correct ALPN to proxies (#24696) - fix(ext/node): read correct CPU usage stats on Linux (#24732) - fix(ext/node/net): emit `error` before `close` when connection is refused (#24656) - fix(future): Emit `deno install` warning less often, suggest `deno install` in error message (#24706) - fix(lsp): rewrite import for 'infer return type' action (#24685) - fix(node): better detection for when to surface node resolution errors (#24653) - fix(node): cjs pkg dynamically importing esm-only pkg fails (#24730) - fix(node/worker_threads): support `port.once()` (#24725) - fix(publish): workspace included license file had incorrect path (#24747) - fix(unstable): move sloppy-import warnings to lint rule (#24710) - fix(upgrade): do not error if config in cwd invalid (#24689) - fix(workspaces/publish): include the license file from the workspace root if not in pkg (#24714) - fix: enable the reporting of parsing related problems when running deno lint (#24332) - fix: support `npm:bindings` and `npm:callsites` packages (#24727) - fix: update lsp error message of 'relative import path' to 'use deno add' for npm/jsr packages (#24524) - fix: decode percent-encoding source string in `Error.stack` (#24709) - perf: update deno_doc (#24700)

← Older Version Deno v1.45.3 Newer Version → Deno v1.45.5