Deno 2.9.7 is out: highlights and upgrade guide
At a glance
Deno 2.9.7 is a patch release published on Sep 17, 2026. It follows Deno 2.9.6 by 21 days. It includes 37 listed changes.
- fix(audit): honor configured CA stores
- fix(cache): make HTTP authority paths unambiguous
- fix(cli): accept all valid sys permission descriptors
- fix(cli): don't duplicate passthrough args for deno deploy/sandbox
- fix(cli): generate valid bash completions
- Version
- 2.9.7
- Released
- Sep 17, 2026
- Release type
- Patch
- Previous
- 2.9.6
- Changes listed
- 37
- License
- MIT
How to upgrade to Deno 2.9.7
This is a patch release, normally bug fixes only. It is usually safe to upgrade after your tests pass.
deno
deno upgrade --version 2.9.7What's included in Deno 2.9.7
Details from the official release page.
- fix(audit): honor configured CA stores (#36728)
- fix(cache): make HTTP authority paths unambiguous (#36356)
- fix(cli): accept all valid sys permission descriptors (#36753)
- fix(cli): don't duplicate passthrough args for deno deploy/sandbox (#36722)
- fix(cli): generate valid bash completions (#36736)
- fix(cli): preserve double dash before the entrypoint (#36835)
- fix(cli): restore optional-value semantics for deno bundle --sourcemap (#36723)
- fix(completions): keep the dash on short flags in zsh completions (#36720)
- fix(desktop): complete deferred window close and fix NAPI symbol export on Linux (#36718)
- fix(ext/http): extract traceparent from Deno.serve regardless of header name case (#36840)
- fix(ext/node): allow repeated child process signals (#36644)
- fix(ext/node): check resolved IP against net deny list in tcp_wrap bind (#36482)
- fix(ext/node): don't panic on prime sizes below 2 bits (#36400)
- fix(ext/node): improve node:dns error codes and lookupService/setLocalAddress compat (#36552)
- fix(ext/node): normalize resourceUsage maxRSS on macOS (#36784)
- fix(install): validate lockfile tarball registry paths (#36473)
- fix(lsp): resolve the newest prerelease of jsr packages that have no stable release (#36655)
- fix(net): check permissions for multicast membership (#36529)
- fix(node): align IncomingMessage header map prototypes (#36438)
- fix(node): preserve AsyncLocalStorage exit context (#36464)
- fix(npm): correct the pnpm lockfile import against real-world lockfiles (#36727)
- fix(npm): validate lockfile tarball origins (#36430)
- fix(permissions): fold unix socket paths for case-insensitive filesystems (#36553)
- fix(permissions): parse unix: net rules as POSIX paths (#36785)
- fix(process): clear supplementary groups before changing identity (#36433)
- fix(sqlite): refuse symlink database paths (#36357)
- fix(transpile): don't report diagnostics from bundled assets in declaration emit (#36716)
- fix(web): avoid flushing compression streams on every write (#36744)
- fix: add missing property desktop.app.identifier (#36774)
- fix: hash source contents for V8 code cache (#36743)
- fix: point JSON schema $id values at the maintained GitHub raw endpoint (#36747)
- fix: toplevel fetch/cron leak its spans (#36757)
- fix: validate --ignore-scripts package selectors (#36742)
- perf(core): drop dead module-graph retention (#36683)
- perf(core): make extension op tables const in static memory (#36696)
- perf(core): split OpCtx into shared OpCommonCtx + borrowed op declarations (#36693)
- perf(ext/node): Buffer hex paths via native Uint8Array toHex/setFromHex (#36531)
Deno 2.9.7 FAQ
When was Deno 2.9.7 released?
Deno 2.9.7 was published on Sep 17, 2026.
Is Deno 2.9.7 a major update?
No. It is a patch release, mainly bug fixes.
How do I upgrade to Deno 2.9.7?
Use the commands in the “How to upgrade” section, then run your test suite.
Where are the official Deno 2.9.7 notes?
On the project's official release page: https://github.com/denoland/deno/releases/tag/v2.9.7
Source: official Deno v2.9.7 release. Spotted an error? Tell us.