# Anthropic TypeScript SDK v0.104.1 — sdk: v0.104.1

- Product: Anthropic TypeScript SDK (https://whatsnew.fyi/product/anthropic-sdk-typescript)
- Vendor: Anthropic
- Date: 2026-06-09
- Version: v0.104.1
- Original notes: https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/sdk-v0.104.1
- Permalink: https://whatsnew.fyi/product/anthropic-sdk-typescript/releases/v0.104.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Add frontier_llm refusal category to the API

##### 0.104.1 (2026-06-09)

Full Changelog: [sdk-v0.104.0...sdk-v0.104.1](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.104.0...sdk-v0.104.1)

###### Bug Fixes

* **api:** add `frontier_llm` refusal category ([465e686](https://github.com/anthropics/anthropic-sdk-typescript/commit/465e6866d66952c0a0a9eb2c465b2e4389da58f1))