# Storybook v10.6.0-beta.0

- Product: Storybook (https://whatsnew.fyi/product/storybook)
- Vendor: Storybook
- Date: 2026-08-27
- Version: v10.6.0-beta.0
- Original notes: https://github.com/storybookjs/storybook/releases/tag/v10.6.0-beta.0
- Permalink: https://whatsnew.fyi/product/storybook/releases/v10.6.0-beta.0
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — CLI plugins now delegate to storybook skills and storybook tools with aligned evals
- **changed** — CLI tools-command telemetry now enriched with attach dimensions
- **fixed** — CLI storybook tools --json stdout is now kept parseable
- **security** — Add security token to instance registry record
- **added** — Add storybook/internal/tools SDK skeleton
- **fixed** — Fix Windows unit tests for instance-record ACLs
- **fixed** — Fix change detection missing working-tree edits until a commit
- **added** — Add delegated mode for Open Service transports
- **added** — Auto-spawn a project-local child host on fidelity failure
- **changed** — Tools default to attach mode and MCP proxy has been deleted
- **added** — Implement attached mode in storybook/internal/tools
- **added** — Spawn a child host for local mode when cwd differs
- **changed** — Vue allows args to be explicitly undefined in story-snippet generation

##### 10.6.0-beta.0

- CLI plugins: Delegate to \`storybook skills\` / \`storybook tools\` and align the evals - [#35957](https://github.com/storybookjs/storybook/pull/35957), thanks @kasperpeulen!
- CLI: Enrich tools-command telemetry with attach dimensions - [#36032](https://github.com/storybookjs/storybook/pull/36032), thanks @JReinhold!
- CLI: Keep \`storybook tools --json\` stdout parseable - [#36023](https://github.com/storybookjs/storybook/pull/36023), thanks @kasperpeulen!
- Core: Add security token to instance registry record - [#35988](https://github.com/storybookjs/storybook/pull/35988), thanks @JReinhold!
- Core: Add storybook/internal/tools SDK skeleton - [#35985](https://github.com/storybookjs/storybook/pull/35985), thanks @JReinhold!
- Core: Fix Windows unit tests for instance-record ACLs - [#36060](https://github.com/storybookjs/storybook/pull/36060), thanks @JReinhold!
- Core: Fix change detection missing working-tree edits until a commit - [#35744](https://github.com/storybookjs/storybook/pull/35744), thanks @ghengeveld!
- Open Service: Add delegated mode for Open Service transports - [#35984](https://github.com/storybookjs/storybook/pull/35984), thanks @JReinhold!
- Tools: Auto-spawn a project-local child host on fidelity failure - [#35981](https://github.com/storybookjs/storybook/pull/35981), thanks @JReinhold!
- Tools: Default to attach mode, delete MCP proxy - [#35990](https://github.com/storybookjs/storybook/pull/35990), thanks @JReinhold!
- Tools: Implement attached mode in \`storybook/internal/tools\` - [#35983](https://github.com/storybookjs/storybook/pull/35983), thanks @JReinhold!
- Tools: Spawn a child host for local mode when cwd differs - [#36052](https://github.com/storybookjs/storybook/pull/36052), thanks @JReinhold!
- Vue: Allow args to be explictly undefined in story-snippet generation - [#36048](https://github.com/storybookjs/storybook/pull/36048), thanks @huang-julien!