release: 0.57.0

[stainless-app]

Automated Release PR

0.57.0 (2026-05-22)

Full Changelog: v0.56.0...v0.57.0

Features

• [kernel-1116] browser events api integration (e0a367b)
• api: type can_reauth_reason as an enum on ManagedAuth (61f5842)
• browsers: accept chrome_policy on POST /browsers (KERNEL-1216) (6f29adc)
• EOL persistent browsers: openapi limits (b79f2fd)

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Note

Medium Risk
Moderate risk due to a large generated surface-area update (new telemetry SSE service/types) plus API type changes/removals that may break existing consumers (persistent browser fields, can_reauth_reason typing).

Overview
Bumps the SDK to v0.57.0 and updates generated API bindings.

Adds browser telemetry/event streaming via a new Browsers.Telemetry.Stream SSE endpoint, including telemetry config params on browser create/update and extensive new event/union types/constants.

Updates browser session models to accept/echo chrome_policy, removes deprecated persistent browser support (delete-by-persistent-id, persistence types, and project persistent-session limits), and types ManagedAuth.can_reauth_reason as a dedicated enum. Also hardens the SSE decoder to skip comment-only keepalive frames (with new tests).

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[stainless-app]

🧪 Testing

To try out this version of the SDK:

Download and unzip: 'https://pkg.stainless.com/s/kernel-go/b79f2fd415108f84cf99377bd3b4c60e64af1ba3/source.zip'. Run 'go mod edit -replace github.com/kernel/kernel-go-sdk=/path/to/unzipped_directory'.

Expires at: Sun, 21 Jun 2026 16:49:10 GMT
Updated at: Fri, 22 May 2026 16:49:10 GMT

[firetiger-agent]

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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