release: 0.31.1

[stainless-app]

Automated Release PR

0.31.1 (2026-02-06)

Full Changelog: v0.31.0...v0.31.1

Chores

• add Managed Auth API planning doc (fe6c74f)

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Note

Medium Risk
Adds a sizable new API surface (managed auth flows + SSE streaming) and changes public models/enums and endpoint paths, which may impact consumers upgrading or relying on previous values/URLs, though the legacy auth APIs remain available as deprecated wrappers.

Overview
Introduces a new Managed Auth Connections surface (client.Auth.Connections) for creating, querying, listing, deleting, and driving login flows (Login, Submit) plus SSE streaming updates via FollowStreaming, with new request/response models and flow-state unions.

Marks the legacy AgentAuth/AgentAuthInvocation endpoints as deprecated in favor of /auth/connections, updates auth models (credential reference object, removes auto_login type, adds password as an MFA option, and adds linked_mfa_type on discovered fields), and documents default allowed SSO/OAuth domains.

Updates Credential Providers to use org/credential_providers paths, makes name required on create and present on models, and adds ListItems plus item/list response types; updates docs/tests accordingly. Also bumps release metadata/versioning to 0.31.1 and regenerates api.md.

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[cursor]

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

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[cursor]

FollowStreaming returns nil stream on empty id

Medium Severity

When id is empty, FollowStreaming sets err but then does a bare return, yielding a nil *ssestream.Stream. Any caller that uses the returned stream (e.g., calling Next(), Err(), or Close()) will hit a nil pointer dereference and panic. The normal error path correctly passes errors through ssestream.NewStream, which stores the error and makes Next() return false safely — but the empty-id early return bypasses NewStream entirely.

 

[masnwilliams]

lgtm

[stainless-app]

🤖 Release is at https://github.com/kernel/kernel-go-sdk/releases/tag/v0.31.1 🌻