Claude Platform — Claude Platform release notes — June 18, 2026

Jun 18, 2026 · about 2 months ago

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…

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Python, TypeScript, Go, Java, Ruby, PHP, and C# SDKs now include support for code_execution_20260120 tool version with REPL state persistence

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