release: 0.57.0

[stainless-app]

Automated Release PR

0.57.0 (2026-05-26)

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

Features

• [kernel-1116] browser events api integration (e0a367b)
• api: dual-route /projects under /org/projects, deprecate /projects (166c834)
• 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)
• Support telemetry enabled request config (ba2ff70)

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🔗 Stainless website
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Note

Medium Risk
Breaking SDK removals (persistence delete API, project path prefix) and a large new telemetry surface; behavior depends on server dual-routing for deprecated /projects paths.

Overview
v0.57.0 is an OpenAPI/Stainless sync that expands browser and org APIs and retires several deprecated surfaces.

The largest addition is browser telemetry: client.Browsers.Telemetry.StreamStreaming exposes an SSE stream of typed events (console, network, page lifecycle, interaction, monitor), with telemetry request config on browser create/update and echoed telemetry / chrome_policy on session responses.

Projects now call /org/projects (and /org/projects/{id}/limits) instead of /projects; callers must rely on the server’s org-scoped routes. Managed auth types can_reauth_reason as ManagedAuthCanReauthReason instead of a free-form string.

Removed / EOL: deprecated persistent browser types and Browsers.Delete (bulk delete by persistent_id); max_persistent_sessions on project limits; persistence fields on browser models. Docs clarify start URL behavior (fire-and-forget) and proxy check when a custom URL is passed.

Release metadata (CHANGELOG, README, internal/version, .stats.yml) reflects the new spec hash and version.

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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/ba2ff705279a32f8a3d91ca85696e398923ebe43/source.zip'. Run 'go mod edit -replace github.com/kernel/kernel-go-sdk=/path/to/unzipped_directory'.

Expires at: Thu, 25 Jun 2026 17:46:32 GMT
Updated at: Tue, 26 May 2026 17:46:32 GMT

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[cursor]

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

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[stainless-app]

🤖 Release is at https://github.com/kernel/kernel-go-sdk/releases/tag/v0.57.0 🌻