https://freedom.tech/project/anthropic-sdk-csharp/ Every Anthropic Sdk Csharp release and update tracked by Freedom.Tech. en Freedom.Tech is a Foundation project. https://foundation.xyz Freedom.Tech, a Foundation project (https://foundation.xyz) https://freedom.tech/posts/2026-08-07-anthropic-sdk-csharp-12-40-0/ https://freedom.tech/posts/2026-08-07-anthropic-sdk-csharp-12-40-0/ Fri, 07 Aug 2026 17:18:48 GMT C# SDK adds mid-conversation tool changes, session budgets, advisor tools, and GitHub skill auto-loading for Claude API integration https://freedom.tech/posts/2026-07-24-anthropic-sdk-csharp-12-39-0/ https://freedom.tech/posts/2026-07-24-anthropic-sdk-csharp-12-39-0/ Fri, 24 Jul 2026 16:37:08 GMT C# SDK adds Claude Opus 5 model, tool addition/removal blocks, tool_change events, and fixes streaming parallel tool-use logic https://freedom.tech/posts/2026-07-22-anthropic-sdk-csharp-12-37-0/ https://freedom.tech/posts/2026-07-22-anthropic-sdk-csharp-12-37-0/ Wed, 22 Jul 2026 16:49:52 GMT C# SDK adds Managed Agents model effort controls, initial session events, and threads delta streaming support