Claude Platform release notes — June 18, 2026
The Python, TypeScript, Go, Java, Ruby, PHP, and C# SDKs now include support for code_execution_20260120 , the code execution tool version that adds REPL state persistence and is the minimum version f…
Added
- Python, TypeScript, Go, Java, Ruby, PHP, and C# SDKs now include support for code_execution_20260120 tool version with REPL state persistence