Unverified50% confidenceFactExact time

The update improves rendering performance, reducing the amount of re-rendering work per turn in long conversations so that streaming output no longer slows down as replies grow longer.

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

9/11/2026

First Seen

Valid until: 12/10/2026

Sources

Claude Code v2.1.257 Update: Security Hardening and Stability Improvements Across the Board

Related Entities

Claude Codeproduct

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