release: 0.34.0

[stainless-app]

Automated Release PR

0.34.0 (2026-02-18)

Full Changelog: v0.33.0...v0.34.0

Features

• Add error_code field to ManagedAuthSession and related components (1adbca7)
• Allow arbitrary viewport dimensions (7860190)
• Neil/kernel 873 templates v4 (73b1b98)

Chores

• internal/client: fix form-urlencoded requests (cc9982c)
• internal: avoid type checking errors with ts-reset (8ca1d54)

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Note

Medium Risk
Includes a behavioral change in request body encoding for application/x-www-form-urlencoded, which could affect how some requests are sent; other changes are mostly additive types/docs and version bumps.

Overview
Bumps the SDK release to 0.34.0 (version constants, manifest, changelog) and updates the tracked OpenAPI spec URL/hash.

Adds new surfaced API shape: ManagedAuth/SSE auth state events now include an optional machine-readable error_code, and AppAction now exposes optional input_schema/output_schema JSON Schemas.

Improves client internals by correctly encoding object bodies as application/x-www-form-urlencoded when that content-type is set, loosens viewport documentation to reflect support for arbitrary dimensions, and adds small type assertions for JSON parsing in streaming/error handling.

^{Written by Cursor Bugbot for commit b3887a6. This will update automatically on new commits. Configure here.}

[stainless-app]

🧪 Testing

To try out this version of the SDK, run:

npm install 'https://pkg.stainless.com/s/kernel-typescript/73b1b98c01eca471f7d44b18158e8d8f0c33af19/dist.tar.gz'

Expires at: Fri, 20 Mar 2026 19:48:37 GMT
Updated at: Wed, 18 Feb 2026 19:48:37 GMT

[stainless-app]

🤖 Release is at https://github.com/kernel/kernel-node-sdk/releases/tag/v0.34.0 🌻