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# **Nuxt Devtools v4.0.0**

[View on GitHub](https://github.com/nuxt/devtools/releases/tag/v4.0.0)

nuxt/devtools· Released October 27, 2026Breaking changes

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**Summary**

Nuxt Devtools v4.0.0 introduces significant breaking changes, including the removal of deprecated auth token arguments, @vue/devtools integration, and legacy files. Key features include the upgrade to Vite DevTools, a new Code Server plugin replacing VS Code integration, and a streamlined client UI served as remote assets. The update also focuses on reducing install size and enhancing the overall developer experience with improved notifications and a unified Data Inspector.

## **Breaking changes in v4.0.0**

- Remove deprecated auth token args from builtin RPC functions  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/965 [(4418e)](https://github.com/nuxt/devtools/commit/4418e617)
- Remove @vue/devtools integration  -  by @antfubot and **opencode** in https://github.com/nuxt/devtools/issues/1056 [(a1c92)](https://github.com/nuxt/devtools/commit/a1c923dd)
- Remove cjs build and legacy dts files  -  by @antfu [(d2c6d)](https://github.com/nuxt/devtools/commit/d2c6d90e)
- **devtools**:
  - Reuse the built-in Terminals dock via ctx.terminals  -  by @antfubot in https://github.com/nuxt/devtools/issues/1026 [(bee6f)](https://github.com/nuxt/devtools/commit/bee6f4a1)
  - Finish Messages + terminals convergence on Devframe 0.7.7  -  by @antfubot in https://github.com/nuxt/devtools/issues/1032 [(c0812)](https://github.com/nuxt/devtools/commit/c0812508)
  - Replace server discovery with the Data Inspector plugin  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1034 [(35def)](https://github.com/nuxt/devtools/commit/35defc3f)
  - Make embedded dock the only client mode  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1041 [(eb96a)](https://github.com/nuxt/devtools/commit/eb96a7cd)
  - Slim the install size of @nuxt/devtools  -  by @antfubot in https://github.com/nuxt/devtools/issues/1121 [(10f9e)](https://github.com/nuxt/devtools/commit/10f9ee88)
- **v4**:
  - Migrate execa to tinyexec  -  by @antfu in https://github.com/nuxt/devtools/issues/944 [(ae68d)](https://github.com/nuxt/devtools/commit/ae68d3b6)
  - Remove global install and wizard package  -  by @antfu in https://github.com/nuxt/devtools/issues/943 [(34d13)](https://github.com/nuxt/devtools/commit/34d136f5)
  - Always use Vite DevTools, remove floating panel  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/952 [(8807b)](https://github.com/nuxt/devtools/commit/8807be5e)

## **Full release notes **

###    🚨 Breaking Changes

- Remove deprecated auth token args from builtin RPC functions  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/965 [(4418e)](https://github.com/nuxt/devtools/commit/4418e617)
- Remove @vue/devtools integration  -  by @antfubot and **opencode** in https://github.com/nuxt/devtools/issues/1056 [(a1c92)](https://github.com/nuxt/devtools/commit/a1c923dd)
- Remove cjs build and legacy dts files  -  by @antfu [(d2c6d)](https://github.com/nuxt/devtools/commit/d2c6d90e)
- **devtools**:
  - Reuse the built-in Terminals dock via ctx.terminals  -  by @antfubot in https://github.com/nuxt/devtools/issues/1026 [(bee6f)](https://github.com/nuxt/devtools/commit/bee6f4a1)
  - Finish Messages + terminals convergence on Devframe 0.7.7  -  by @antfubot in https://github.com/nuxt/devtools/issues/1032 [(c0812)](https://github.com/nuxt/devtools/commit/c0812508)
  - Replace server discovery with the Data Inspector plugin  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1034 [(35def)](https://github.com/nuxt/devtools/commit/35defc3f)
  - Make embedded dock the only client mode  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1041 [(eb96a)](https://github.com/nuxt/devtools/commit/eb96a7cd)
  - Slim the install size of @nuxt/devtools  -  by @antfubot in https://github.com/nuxt/devtools/issues/1121 [(10f9e)](https://github.com/nuxt/devtools/commit/10f9ee88)
- **v4**:
  - Migrate execa to tinyexec  -  by @antfu in https://github.com/nuxt/devtools/issues/944 [(ae68d)](https://github.com/nuxt/devtools/commit/ae68d3b6)
  - Remove global install and wizard package  -  by @antfu in https://github.com/nuxt/devtools/issues/943 [(34d13)](https://github.com/nuxt/devtools/commit/34d136f5)
  - Always use Vite DevTools, remove floating panel  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/952 [(8807b)](https://github.com/nuxt/devtools/commit/8807be5e)

###    🚀 Features

- Upgrade vite-plugin-inspect to v12, use devtools-kit RPC  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/966 [(4c594)](https://github.com/nuxt/devtools/commit/4c594cee)
- Replace VS Code integration with Code Server plugin  -  by @antfu in https://github.com/nuxt/devtools/issues/1036 [(239ab)](https://github.com/nuxt/devtools/commit/239ab850)
- Serve the client UI as devframe remote assets via @nuxt/devtools-assets  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1071 [(39470)](https://github.com/nuxt/devtools/commit/39470fd1)
- Upgrade devframe and Vite DevTools, update branding  -  by @antfu [(42419)](https://github.com/nuxt/devtools/commit/4241988c)
- Upgrade devframe and vite devtools  -  by @antfu [(8ff46)](https://github.com/nuxt/devtools/commit/8ff462a8)
- Upgrade devframe to v1.0  -  by @antfu [(96195)](https://github.com/nuxt/devtools/commit/9619540f)
- Update deps  -  by @antfu [(a1fce)](https://github.com/nuxt/devtools/commit/a1fcef8c)
- Add @nuxt/devtools-onboard as the opt-in entry point of Nuxt DevTools  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1117 [(ff051)](https://github.com/nuxt/devtools/commit/ff0512e8)
- Remove Open Graph module and integrate new assets and Open Graph plugins  -  by @antfu [(b4d46)](https://github.com/nuxt/devtools/commit/b4d46d3c)
- Deps on `@nuxt/devtools-assets` for now to improve the landing experience (as we have the onboard package now)  -  by @antfu [(93820)](https://github.com/nuxt/devtools/commit/9382024a)
- Upgrade to `@vitejs/devtools` v0.8  -  by @antfu [(c13d0)](https://github.com/nuxt/devtools/commit/c13d00a6)
- Update deps  -  by @antfu [(6ea43)](https://github.com/nuxt/devtools/commit/6ea436d8)
- **deps**:
  - Migrate to Vite DevTools v0.5.0 and Devframe v0.9.2  -  by @antfubot and **opencode** in https://github.com/nuxt/devtools/issues/1065 [(1ff0e)](https://github.com/nuxt/devtools/commit/1ff0ed6f)
- **devtools**:
  - Devtools:ready hook + nostics-driven deprecation foundation  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1021 [(f9dda)](https://github.com/nuxt/devtools/commit/f9dda69d)
  - Client-side onDevtoolsReady + expose Vite DevTools client; fix client RPC registration  -  by @antfubot in https://github.com/nuxt/devtools/issues/1023 [(88c4f)](https://github.com/nuxt/devtools/commit/88c4f1c1)
  - Unify notifications on the devframe Messages system  -  by @antfubot in https://github.com/nuxt/devtools/issues/1025 [(6bfe9)](https://github.com/nuxt/devtools/commit/6bfe9c79)
  - Select client Vite context deterministically, add Nuxt dock group  -  by @antfubot in https://github.com/nuxt/devtools/issues/1031 [(6b9bf)](https://github.com/nuxt/devtools/commit/6b9bff9d)
  - Project each DevTools tab as its own Vite DevTools dock entry  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1035 [(f4fe2)](https://github.com/nuxt/devtools/commit/f4fe2780)
  - Unify Data Inspector Vite instance and refresh builtin queries  -  by @antfubot in https://github.com/nuxt/devtools/issues/1047 [(5a6c4)](https://github.com/nuxt/devtools/commit/5a6c4e87)
  - Make vite-plugin-inspect an optional peer dependency  -  by @antfubot in https://github.com/nuxt/devtools/issues/1055 [(c8da2)](https://github.com/nuxt/devtools/commit/c8da29bb)
  - Add `dataInspector` option + lazy-load integrations  -  by @antfu in https://github.com/nuxt/devtools/issues/1061 [(eeb29)](https://github.com/nuxt/devtools/commit/eeb29a9b)
  - Respect DO\_NOT\_TRACK environment variable  -  by @antfubot in https://github.com/nuxt/devtools/issues/1064 [(190ff)](https://github.com/nuxt/devtools/commit/190ff438)
  - Proxy client `__connection.json` to hub in standalone dev  -  by @antfubot in https://github.com/nuxt/devtools/issues/1070 [(4449f)](https://github.com/nuxt/devtools/commit/4449f09d)
  - Drive Vite DevTools through the `devtools` config option on Vite 8.3+  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1091 [(c2867)](https://github.com/nuxt/devtools/commit/c2867686)
  - Surface the auth code through the Nuxt CLI terminal host  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1093 [(73e65)](https://github.com/nuxt/devtools/commit/73e655f0)
  - Restore Vue DevTools through vite-plugin-vue-devtools v9  -  by @antfubot in https://github.com/nuxt/devtools/issues/1099 [(86abd)](https://github.com/nuxt/devtools/commit/86abd8e9)
- **playgrounds**:
  - Add ecosystem dogfooding playground for plan 04  -  by @antfubot, **opencode** and @antfu in https://github.com/nuxt/devtools/issues/1022 [(6079f)](https://github.com/nuxt/devtools/commit/6079f1bf)

###    🐞 Bug Fixes

- Use compatible radial-gradient syntax in OG image component  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/959 [(ce21c)](https://github.com/nuxt/devtools/commit/ce21c443)
- Persist async data across tab navigation with custom getCachedData  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/963 [(a2010)](https://github.com/nuxt/devtools/commit/a2010927)
- Use literal version ranges in pnpm overrides instead of catalog refs  -  by @antfubot in https://github.com/nuxt/devtools/issues/1015 [(077b2)](https://github.com/nuxt/devtools/commit/077b2264)
- Nuxt api url  -  by @antfu [(0c947)](https://github.com/nuxt/devtools/commit/0c947303)
- Resolve devtools client runtime errors  -  by @antfu in https://github.com/nuxt/devtools/issues/1075 [(7dac1)](https://github.com/nuxt/devtools/commit/7dac16dd)
- Restore typecheck against nuxt-nightly's typed fetch/hooks API  -  by @antfubot in https://github.com/nuxt/devtools/issues/1085 [(e4217)](https://github.com/nuxt/devtools/commit/e42176c8)
- Bump unocss to 66.10.1 to restore DevTools client styling  -  by @antfubot in https://github.com/nuxt/devtools/issues/1088 [(7d7e9)](https://github.com/nuxt/devtools/commit/7d7e9b46)
- Resolve typecheck errors after dependency updates  -  by @antfubot in https://github.com/nuxt/devtools/issues/1104 [(93ffd)](https://github.com/nuxt/devtools/commit/93ffd79a)
- Accept any nitro version in the optional peer dependency  -  by @mansurkhoja in https://github.com/nuxt/devtools/issues/1106 [(f96b0)](https://github.com/nuxt/devtools/commit/f96b08e4)
- **assets**:
  - Skip re-declaring services Vite DevTools already installed  -  by @antfubot in https://github.com/nuxt/devtools/issues/1137 [(b7371)](https://github.com/nuxt/devtools/commit/b73714b5)
- **ci**:
  - Generate devtools client .nuxt types before typecheck job  -  by @antfubot and **opencode** in https://github.com/nuxt/devtools/issues/1089 [(1b2c2)](https://github.com/nuxt/devtools/commit/1b2c2405)
  - Build with bumped nightly names before publishing  -  by @antfubot in https://github.com/nuxt/devtools/issues/1094 [(3e65f)](https://github.com/nuxt/devtools/commit/3e65f859)
  - Build nightly packages before bumping their names  -  by @antfubot in https://github.com/nuxt/devtools/issues/1095 [(ed237)](https://github.com/nuxt/devtools/commit/ed2379d3)
- **client**:
  - Load virtual files from `/_vfs/` for Nitro v3 compatibility  -  by @antfubot in https://github.com/nuxt/devtools/issues/1132 [(e1f30)](https://github.com/nuxt/devtools/commit/e1f30a1e)
- **deps**:
  - Pin vite to 8.0.x (< 8.1) to unbreak DevTools e2e  -  by @antfubot in https://github.com/nuxt/devtools/issues/1020 [(b9b6f)](https://github.com/nuxt/devtools/commit/b9b6fa76)
  - Upgrade Vite DevTools to 0.5.1, fix e2e client-context global  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1069 [(3d2eb)](https://github.com/nuxt/devtools/commit/3d2ebf4b)
  - Align the Nuxt nightly with nitro 3.0.260903 so the dev server boots  -  by @antfubot in https://github.com/nuxt/devtools/issues/1107 [(a4928)](https://github.com/nuxt/devtools/commit/a492820b)
- **devtools**:
  - Optimize @vue/devtools dependencies in dev  -  by @huang-julien in https://github.com/nuxt/devtools/issues/981 [(32563)](https://github.com/nuxt/devtools/commit/32563f0d)
  - Let birpc be singlesource of turth for server<->client comms  -  by @huang-julien in https://github.com/nuxt/devtools/issues/978 [(4853d)](https://github.com/nuxt/devtools/commit/4853d044)
  - Run defineViteDevToolsPlugin only for client vite  -  by @huang-julien in https://github.com/nuxt/devtools/issues/977 [(b5f9f)](https://github.com/nuxt/devtools/commit/b5f9f8a5)
  - Add undeclared `unstorage` dependency  -  by @danielroe in https://github.com/nuxt/devtools/issues/986 [(32b43)](https://github.com/nuxt/devtools/commit/32b43b8d)
  - Pre-bundle additional injected client deps in dev  -  by @antfu and **Claude Opus 5 (1M context)** in https://github.com/nuxt/devtools/issues/991 [(48194)](https://github.com/nuxt/devtools/commit/481947aa)
  - Reference optimizeDeps in reference to `@nuxt/devtools`  -  by @danielroe in https://github.com/nuxt/devtools/issues/1001 [(49d77)](https://github.com/nuxt/devtools/commit/49d777e0)
  - Don't scope dock plugin with `{ server: false }`  -  by @antfu [(b2665)](https://github.com/nuxt/devtools/commit/b2665eb0)
  - Correct options cache guard and stop mutating defaults  -  by @antfubot in https://github.com/nuxt/devtools/issues/1018 [(f71b1)](https://github.com/nuxt/devtools/commit/f71b190d)
  - Remove the correct module in uninstallNuxtModule  -  by @antfubot in https://github.com/nuxt/devtools/issues/1019 [(72934)](https://github.com/nuxt/devtools/commit/72934989)
  - Drop stale visibility assertion from nuxt-group e2e test  -  by @antfubot in https://github.com/nuxt/devtools/issues/1042 [(6eeec)](https://github.com/nuxt/devtools/commit/6eeec697)
  - Prevent StateEditor from freezing the page on live state  -  by @antfubot in https://github.com/nuxt/devtools/issues/1058 [(dbc5d)](https://github.com/nuxt/devtools/commit/dbc5d284)
  - Handle transient RPC failures in getOptions/telemetryEvent  -  by @antfubot in https://github.com/nuxt/devtools/issues/1072 [(40f22)](https://github.com/nuxt/devtools/commit/40f22f2e)
  - Harden RPC surface against traversal, spoofing, and dead auth UI  -  by @antfubot in https://github.com/nuxt/devtools/issues/1086 [(24877)](https://github.com/nuxt/devtools/commit/24877d5f)
  - Rework timeline function wrapping to run after key injection  -  by @cernymatej, @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1028 [(5d695)](https://github.com/nuxt/devtools/commit/5d69506b)
  - Resolve open-in-editor paths against the root and workspace dirs  -  by @lazerg in https://github.com/nuxt/devtools/issues/1098 [(e9c70)](https://github.com/nuxt/devtools/commit/e9c7002b)
  - Stop inlining every dependency into the Nitro v2 dev bundle  -  by @antfubot in https://github.com/nuxt/devtools/issues/1109 [(397f9)](https://github.com/nuxt/devtools/commit/397f9b22)
  - Contain asset RPC paths and the storage denylist to what the UI may touch  -  by @antfubot and @antfu in https://github.com/nuxt/devtools/issues/1111 [(6521d)](https://github.com/nuxt/devtools/commit/6521d263)
  - Open Sublime Text with the `subl` CLI  -  by @ahmetomerv in https://github.com/nuxt/devtools/issues/1134 [(82eef)](https://github.com/nuxt/devtools/commit/82eef122)
- **devtools-kit**:
  - Pass cwd to execa  -  by @huang-julien in https://github.com/nuxt/devtools/issues/960 [(64958)](https://github.com/nuxt/devtools/commit/64958ada)
- **devtools/client**:
  - Debounce render of NDisconnectIndicator  -  by @huang-julien in https://github.com/nuxt/devtools/issues/979 [(cf8d9)](https://github.com/nuxt/devtools/commit/cf8d9c52)
- **e2e**:
  - Unblock the dev e2e suite after the nuxt-nightly 5x upgrade  -  by @antfubot in https://github.com/nuxt/devtools/issues/1054 [(7b99f)](https://github.com/nuxt/devtools/commit/7b99f919)
  - Give the tab-seo project a tall viewport so the sidebar dock list doesn't overflow  -  by @antfubot in https://github.com/nuxt/devtools/issues/1084 [(9f596)](https://github.com/nuxt/devtools/commit/9f59623c)
- **ecosystem**:
  - Inherit the root pnpm version in the Nuxt 4/5 playgrounds  -  by @antfubot in https://github.com/nuxt/devtools/issues/1138 [(e727f)](https://github.com/nuxt/devtools/commit/e727f2de)
- **onboard**:
  - Load DevTools v3, v4 and nightly releases  -  by @antfubot in https://github.com/nuxt/devtools/issues/1122 [(d0b77)](https://github.com/nuxt/devtools/commit/d0b77e80)
  - Confirm installs in nuxi's terminal, on devframe v1.2.6  -  by @antfubot in https://github.com/nuxt/devtools/issues/1126 [(c12b7)](https://github.com/nuxt/devtools/commit/c12b7219)
  - Serve embedded.js through Nuxt's Vite dev handler  -  by @antfubot in https://github.com/nuxt/devtools/issues/1130 [(745fa)](https://github.com/nuxt/devtools/commit/745fa41c)
- **release**:
  - Use directory-relative turbo filter in prepack scripts  -  by @antfubot and **opencode** in https://github.com/nuxt/devtools/issues/1073 [(1a77a)](https://github.com/nuxt/devtools/commit/1a77a68d)
- **ui**:
  - Color mode reactiveness  -  by @antfu [(f7b17)](https://github.com/nuxt/devtools/commit/f7b17195)

###    🏎 Performance

- **deps**:
  - Make `@nuxt/kit` peer deps  -  by @antfu [(b33a2)](https://github.com/nuxt/devtools/commit/b33a2ad1)
- **devtools**:
  - Move `diff` to devDependencies  -  by @antfu in https://github.com/nuxt/devtools/issues/1060 [(5ba4c)](https://github.com/nuxt/devtools/commit/5ba4c3e6)
  - Trim @nuxt/devtools runtime dependencies  -  by @antfubot in https://github.com/nuxt/devtools/issues/1066 [(ca107)](https://github.com/nuxt/devtools/commit/ca107e5a)

#####      [View changes on GitHub](https://github.com/nuxt/devtools/compare/v3.2.4...v4.0.0)

```json
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