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Anthropic pushed a series of incremental SDK updates in May 2026, underscoring ongoing maintenance across Python and TypeScript clients. The Python SDK saw back-to-back releases: v0.98.0 added Managed Agents API improvements, broader authentication options (Workload Identity Federation, interactive OAuth, auth profiles), environment-variable header support, and several bug fixes improving streaming, multipart uploads, and regional async client behavior; v0.98.1 followed as a minor maintenance release fixing a documentation typo. Meanwhile, the TypeScript SDK received a routine patch (v0.95.2). These releases highlight steady tooling care—important for secure, multi-region, cloud-native integrations and developer reliability.
Incremental SDK updates show ongoing maintenance and security hygiene in Anthropic tooling, affecting integrations for cloud-native and multi-region deployments. Tech teams relying on these SDKs should track auth, agent, and compatibility fixes to avoid integration drift.
Dossier last updated: 2026-05-19 08:22:18
Anthropic’s TypeScript SDK released version 0.97.0 on May 19, 2026, adding client support for self-hosted sandboxes in the CMA via new sandbox helper utilities and addressing compatibility and maintenance issues. The update’s headline feature enables developers using the SDK to run or integrate self-hosted sandbox environments for the CMA workflow, which matters for teams needing isolated, local, or custom testing/deployment setups. The release also upgrades tsc-multi to restore compatibility with Node 26 and removes a redundant File import in tests. These changes improve developer experience and platform compatibility for projects building on Anthropic’s APIs with TypeScript.
Anthropic released version v0.98.1 of its anthropic-sdk-python on May 4, 2026, a minor maintenance update that fixes a typo in an example. The changelog entry for 0.98.1 points to a small commit (de8ba13) and lists the update as a chore rather than a feature or security patch. While low-impact, such incremental fixes keep an SDK's documentation and examples accurate for developers integrating Anthropic models. For teams depending on the Python SDK, the patch signals ongoing maintenance of the developer tooling around Anthropic’s APIs and contributes to overall developer experience and reliability.
Anthropic released version v0.98.0 of its anthropic-sdk-python on May 4, 2026, adding Managed Agents API improvements and expanded authentication options including Workload Identity Federation, interactive OAuth, and auth profiles. The update also added support for setting headers via environment variables. Bug fixes address streaming stop_details propagation, correct multipart file array field names, and async client regional base_url branches for Vertex (us/eu). The release includes minor internal chores like pyproject.toml reformatting. These changes matter to developers integrating Anthropic models and managed agents into cloud-native and multi-region workflows, simplifying secure authentication and improving streaming and file upload reliability across deployments.
Anthropic released version 0.95.2 of its TypeScript SDK (anthropic-sdk-typescript) on May 11, 2026, published by the stainless-app account. The brief release note lists the tag sdk-v0.95.2 and links the changelog for changes since v0.95.1, indicating a routine patch/update to the SDK. This matters to developers and teams integrating Anthropic models because SDK updates can include bug fixes, API adjustments, or improvements that affect client code, type safety, or compatibility. Users should review the changelog and upgrade notes before updating production deployments to avoid breaking changes and to take advantage of any fixes or new features.