release: 0.111.0

[stainless-app]

Automated Release PR

0.111.0 (2026-09-22)

Features

• Allow managed auth logins to disable learned skills (e230ce3)
• Distinguish optimistic managed auth reauth (41059ae)
• Implement Search API v1 providers (76b3d88)
• Persist stable managed auth completion timestamps (17a7960)
• Publish restricted_route_unavailable and unknown proxy_error codes (64805ae)
• Support native prepared Adyen Sessions checkout (5f2df0a)

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Note

Medium Risk
Large additive Search surface and managed-auth/reauth semantics changes affect integration behavior; Adyen checkout preparation touches payment flows, though changes are mostly OpenAPI-generated bindings.

Overview
Release 0.111.0 adds the Search API v1 to the Python SDK: client.search.create / retrieve, search.providers.list, and a stub search.contents.fetch (documented as returning 404 until deferred retrieval ships), plus typed models for strategies, multi-provider native options, results, attempts, warnings, and usage.

Managed auth gains optional skill_mode on connection login to disable learned skills, clearer can_reauth semantics with a new optimistic_totp_attempt reason, and completed_at on timeline events for stable terminal timestamps.

Vault / AgentCard adds Adyen as a prepared checkout processor and updates checkout copy from “tokenization” to “checkout,” including Adyen Sessions preparation notes.

Browser telemetry expands proxy error code values (restricted_route_unavailable, origin_response_incomplete, unknown) and adds raw_code when the header is unrecognized.

^{Reviewed by Cursor Bugbot for commit 762b97a. Bugbot is set up for automated code reviews on this repo. Configure here.}

[stainless-app]

🧪 Testing

To try out this version of the SDK:

pip install 'https://pkg.stainless.com/s/kernel-python/76b3d8871e29d47cfda20f68ab23152daf1790c6/kernel-0.110.0-py3-none-any.whl'

Expires at: Thu, 22 Oct 2026 15:07:40 GMT
Updated at: Tue, 22 Sep 2026 15:07:40 GMT

[chruffins]

approved for the coordinated 0.111.0 SDK release; version and generated Search API surface match the Go and Node releases.

[stainless-app]

🤖 Release is at https://github.com/kernel/kernel-python-sdk/releases/tag/v0.111.0 🌻