Improves cold starts on sanity dev by eliminating optimized dependencies changed. reloading cycles in vite. We now use server.warmup to ensure cold starts are much less cold and jarring. 🫡

Adds the ability to control the display of datetime fields with regard to timezones. Use the new displayTimeZone field option to specify the time zone used for displaying and interacting with the timestamp in Studio. Each user may personalize the time zone they see (this can be prevented by setting the allowTimeZoneSwitch field option to false).

Custom Portable Text block objects may now be marked as deprecated. When a block is deprecated in the schema, its corresponding toolbar button will be inactive and display a tooltip with the provided deprecated.reason.

defineArrayMember({
  name: 'customBlock',
  type: 'object',
  deprecated: {
    reason: 'This block type is deprecated and will be removed in the future.',
  },
  fields: [
    // ...
  ],
})

The Portable Text Editor's Behavior API is now compatible with Studio in a format that is familiar to creators of custom components. Create your own plugins, or add an existing one to your block content. Follow our guide for creating a new Portable Text Editor plugin to get started.

When you initialize a new Blueprint with sanity blueprints init, you're now able to select TypeScript or JavaScript—in addition to JSON—for the configuration format. You can update existing blueprint configurations to this format by adding the @sanity/blueprints package and updating your configuration file.

import { defineBlueprint, defineDocumentFunction } from '@sanity/blueprints'

export default defineBlueprint({
  resources: [
    defineDocumentFunction({
      name: 'Create Fancy Report',
      src: 'functions/create-fancy-report',
      memory: 2,
      timeout: 360,
      event: {
        on: ['publish'],
        filter: "_type == 'customer'",
        projection: "totalSpend, lastOrderDate",
      }
    }),
  ],
})

• Bumps version of React to 19 for studios created using sanity init or npm create sanity.
• Clicking to edit the visual editing overlay for slugs now focuses the slug input, rather than doing nothing. It's amazing what modern technology can do. 🤯
• When using Studio inside Dashboard, it's now possible to switch Studio workspaces again.
• If the first document action is custom, it will now be displayed as the primary document action when viewing document versions. Previously, it was only available by opening the document actions menu.

• Fixes an issue that caused the history cleared event to show in between edit events.
• Fixes an issue that caused comments created in version documents to sometimes contain the title of the draft or published version in the notification email.
• Fixes a bug that caused React's maximum render depth to be exceeded if a custom component used lazy loading. In production builds, this was reported as minified React error #185. This caused the @sanity/color-input plugin to crash when used inside a Portable Text annotation.
• Fixes an issue that caused comments created in arrays of objects to sometimes not be displayed.
• Fixes an issue that caused restoration of deleted documents to restore the first revision, rather than the most recent revision prior to deletion.
• Fixes an issue that caused users of next@canary, or react@canary, to see a getAttribute is not a function error when attempting to edit a link in a Portable Text input field. You shouldn't have to choose between being able to fully use Sanity Studio's Portable Text Editor, or fun new React versions and features, and you no longer have to!
• Fixes incorrect filtering results in timezone modal.
• Fixes an issue where running sanity init in unattended mode or with --create-project sometimes created a new organization.
• Skips auto-update-prompts during sanity build and sanity deploy for non-interactive sessions.

To initiate a new Sanity Studio project or upgrade an existing one, please refer to our comprehensive guide on Installing and Upgrading Sanity Studio.

If you are updating from a version earlier than 3.37.0, you should also check out this article to ensure your dependencies are up to date.