Anthropic TypeScript SDK v0.103.0

0.103.0 (2026-06-09)

Full Changelog: sdk-v0.102.0...sdk-v0.103.0

Features

• api: add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal (cc337f7)
• client: adds client-side fallbacks middleware for API providers that do not support server-side fallbacks (cc337f7)
• middleware: add ctx.logger (#55) (edd1454)

Bug Fixes

• client: 3p middleware ordering (#53) (2a4c339)