# Anthropic TypeScript SDK v0.99.0 — sdk: v0.99.0

- Product: Anthropic TypeScript SDK (https://whatsnew.fyi/product/anthropic-sdk-typescript)
- Vendor: Anthropic
- Date: 2026-05-27
- Version: v0.99.0
- Original notes: https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/sdk-v0.99.0
- Permalink: https://whatsnew.fyi/product/anthropic-sdk-typescript/releases/v0.99.0

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** — Support custom file size caps
- **fixed** — Carry stop_details through message_delta accumulation in streaming

##### 0.99.0 (2026-05-27)

Full Changelog: [sdk-v0.98.1...sdk-v0.99.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.98.1...sdk-v0.99.0)

###### Features

* support custom file size caps ([#1029](https://github.com/anthropics/anthropic-sdk-typescript/issues/1029)) ([814cd4c](https://github.com/anthropics/anthropic-sdk-typescript/commit/814cd4c6b5b01e9640d52738d87fa61fc62991e7))


###### Bug Fixes

* **streaming:** carry stop_details through message_delta accumulation ([#1027](https://github.com/anthropics/anthropic-sdk-typescript/issues/1027)) ([198bc27](https://github.com/anthropics/anthropic-sdk-typescript/commit/198bc277fdfccabe5e9f8a7723a2aa191b46af33))