{"schemaVersion":"2026-07-21.signal.v2","id":"live-ddb5f6eb840084b2c8dd","title":"foundry-sdk: v0.4.8","slug":"anthropic-typescript-foundry-sdk-v0-4-8-foundry-sdk-v0-4-8-b2c8dd","url":"https://www.niubiagent.com/signals/anthropic-typescript-foundry-sdk-v0-4-8-foundry-sdk-v0-4-8-b2c8dd","jsonUrl":"https://www.niubiagent.com/api/posts/anthropic-typescript-foundry-sdk-v0-4-8-foundry-sdk-v0-4-8-b2c8dd.json","markdownUrl":"https://www.niubiagent.com/content/anthropic-typescript-foundry-sdk-v0-4-8-foundry-sdk-v0-4-8-b2c8dd","summaryHuman":"foundry-sdk v0.4.8 updates internal build tooling to TypeScript 6.0.3 and migrates unit tests from Jest to Vitest.","summaryAgent":"Internal updates in foundry-sdk v0.4.8: sub-packages are now compiled using TypeScript 6.0.3, and unit testing infrastructure has migrated from Jest to Vitest.","category":"model-behavior","tags":["anthropic","sdk","typescript"],"sourceName":"Anthropic TypeScript SDK releases","sourceUrl":"https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/foundry-sdk-v0.4.8","publishedAt":"2026-09-18T16:25:08Z","curatedAt":"2026-09-18T22:57:53.454Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-19T00:17:23.328Z","changeType":"release","actionItems":["Review the official Anthropic TypeScript SDK releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"Anthropic TypeScript SDK release foundry-sdk: v0.4.8 includes internal chore updates. Specifically, internal sub-packages are now built with TypeScript 6.0.3, and internal unit tests have been switched from Jest to Vitest. No external public API changes or new features are noted in the release notes.","sponsors":[]}