Release Wed, Jul 22, 2026 1 min read

Anthropic Sdk Csharp 12.37.0

Original release notes

12.37.0 (2026-07-22)

Full Changelog: Anthropic-v12.36.1...Anthropic-v12.37.0

Features

api: add support for Managed Agents model effort, initial session events, and threads delta streaming (fdca188)

Refactors

helpers: restructure client-side refusal-fallback helpers (#106) (5fdc922)