1.59.0 (2026-07-24)
Full Changelog: v1.58.0...v1.59.0
Features
- api: add claude-opus-5 model (56d4632)
- api: add tool addition/removal blocks and tool_change events (56d4632)
- api: expand client-side fallback credit token types and add server-side fallbacks default option (56d4632)
Chores
- internal: codegen related update (4db7e95)