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Anthropic SDK for TypeScript sees multiple updates with new features

By PulseAugur Editorial · [5 sources] ·

Anthropic has released several updates to its TypeScript SDK, introducing new features and improvements. Version 0.104.0 adds support for Managed Agents deployments and environment variable credentials. Earlier versions, such as 0.103.0, introduced new model names like 'claude-mythos-5' and 'claude-fable-5' with server-side fallback capabilities, alongside client-side middleware for API providers lacking this feature. The SDK also saw updates to Managed Agents types and the addition of middleware support. AI

IMPACT Minor improvements to an SDK that may slightly streamline developer workflows for interacting with Anthropic's models.

RANK_REASON This cluster consists of multiple minor version releases for a software development kit, which falls under the 'tool' category.

Read on Anthropic SDK (TypeScript) — Releases →

AI-generated summary · Google Gemini · from 5 sources. How we write summaries →

Anthropic SDK for TypeScript sees multiple updates with new features

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
This cluster consists of multiple minor version releases for a software development kit, which falls under the 'tool' category.
Source corroboration
5 independent sources
Strong cross-source corroboration — multiple independent publishers covered this within the clustering window.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
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High
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Story freshness
113 days old
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Coverage growth since scoring
+1 source(s) since last score
New sources have picked up this story since our last re-score. Score will update on the next scoring pass.

Full methodology in our editorial standards.

COVERAGE [5]

  1. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.104.1

    <h2>0.104.1 (2026-06-09)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.104.0...sdk-v0.104.1">sdk-v0.104.0...sdk-v0.104.1</a></p> <h3>Bug Fixes</h3> <ul> <li><strong>api:</strong> add <code>frontier_llm</code> refusal catego…

  2. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.104.0

    <h2>0.104.0 (2026-06-09)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.103.0...sdk-v0.104.0">sdk-v0.103.0...sdk-v0.104.0</a></p> <h3>Features</h3> <ul> <li><strong>api:</strong> add support for Managed Agents deployments an…

  3. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.103.0

    <h2>0.103.0 (2026-06-09)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.102.0...sdk-v0.103.0">sdk-v0.102.0...sdk-v0.103.0</a></p> <h3>Features</h3> <ul> <li><strong>api:</strong> add support for claude-mythos-5 and claude-fa…

  4. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.102.0

    <h2>0.102.0 (2026-06-06)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.101.0...sdk-v0.102.0">sdk-v0.101.0...sdk-v0.102.0</a></p> <h3>Features</h3> <ul> <li><strong>api:</strong> small updates to Managed Agents types (<a hre…

  5. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.101.0

    <h2>0.101.0 (2026-06-05)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.100.1...sdk-v0.101.0">sdk-v0.100.1...sdk-v0.101.0</a></p> <h3>Features</h3> <ul> <li><strong>client:</strong> add support for middleware (<a href="https…

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