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Deno v0.3.5stable Released Mar 28, 2019
Impact Score: 5/10

Deno v0.3.5 — 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 4 🔧 Bug Fixes 4
⚡ Executive Summary (TL;DR)

Deno v0.3.5. Source highlight: Changes in deno itself:

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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 (4)

  • Add Process.stderrOutput() (#1828)
  • Add Deno.openSync, .readSync, .writeSync, .seekSync (#2000)
  • Add TOML parsing module (#300)
  • Add prettier styling options (#281)

🔧 Bug Fixes & Patches (4)

  • Fix bug when shared queue is overflowed (#1992)
  • Fix assertEquals for RegExp & Date (#305)
  • Fix prettier check in empty files (#302)
  • fix: fs.exists not work for symlink (#291)
📄 View Raw Release Notes (Original Developer Log)
Changes in deno itself: - Add Process.stderrOutput() (#1828) - Check params in Event and CustomEvent (#2011, #1997) - Merge --reload and --recompile flags (#2003) - Add Deno.openSync, .readSync, .writeSync, .seekSync (#2000) - Do not close file on invalid seek mode (#2004) - Fix bug when shared queue is overflowed (#1992) - core: Resolve callback moved from Behavior to mod_instantiate() (#1999) - core: libdeno and DenoCore renamed to Deno.core (#1998) - core: Allow terminating an Isolate from another thread (#1982) In deno_std: - Add TOML parsing module (#300) - testing: turn off exitOnFail by default (#307, #309) - Fix assertEquals for RegExp & Date (#305) - Fix prettier check in empty files (#302) - remove unnecessary path.resolve in move/readJson/writeJson (#292) - fix: fs.exists not work for symlink (#291) - Add prettier styling options (#281) ### Install or Upgrade Shell: ```sh curl -fsSL https://deno.land/x/install/install.sh | sh -s v0.3.5 ``` With PowerShell: ```powershell iwr https://deno.land/x/install/install.ps1 -out install.ps1; .\install.ps1 v0.3.5 ```
← Older Version Deno v0.3.4