release: 0.56.0

[stainless-app]

Automated Release PR

0.56.0 (2026-05-19)

Full Changelog: v0.55.0...v0.56.0

Features

• browsers: accept chrome_policy on POST /browsers (KERNEL-1216) (e3b32bb)
• Expose POST /projects in public API (e251459)

Bug Fixes

• typescript: upgrade tsc-multi so that it works with Node 26 (46e3fb5)

Chores

• tests: remove redundant File import (1677dc1)

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Note

Medium Risk
Medium risk because it expands the public SDK surface area for browser creation/response types (chrome_policy) and updates build tooling (tsc-multi), which could affect consumers’ typechecking/builds.

Overview
Release 0.56.0 updates versioning/lockfiles and refreshes the pinned OpenAPI spec used for codegen.

Adds chrome_policy support to POST /browsers by exposing a new optional chrome_policy field on BrowserCreateParams and echoing it back on browser session response types (including invocation browser listings).

Updates the projects.create docstring to reflect that POST /projects is publicly available, bumps tsc-multi for Node 26 compatibility, and makes a small test cleanup (remove redundant File import / add chrome_policy to the browsers create test case).

^{Reviewed by Cursor Bugbot for commit 93776bc. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[stainless-app]

🧪 Testing

To try out this version of the SDK:

npm install 'https://pkg.stainless.com/s/kernel-typescript/46e3fb57502dcf44dd4c972fc42fb09c30eab6eb/dist.tar.gz'

Expires at: Thu, 18 Jun 2026 02:38:48 GMT
Updated at: Tue, 19 May 2026 02:38:48 GMT