Claude Code 2.1.74: Context Optimization & Memory Fixes
Claude Code 2.1.74 fixes a critical memory leak in streaming responses, adds context optimization tips, and resolves OAuth, model config, and Windows rendering issues.
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Claude Code 2.1.73: Model Overrides & Deadlock Fixes
Claude Code 2.1.73 adds modelOverrides for custom provider models, fixes critical deadlocks and CPU freezes, and upgrades default Opus to 4.6 on Bedrock/Vertex/Foundry.
Claude Code 2.1.72: Effort Levels, Voice Fixes, Bundle Shrink
2.1.72 ships effort level redesign, major voice fixes, 510 KB bundle shrink, and 12x input token savings via prompt cache fix. Plus worktree isolation, permission rules, and hooks cleanup.
Claude Code 2.1.71: Loop Commands & Voice Rebinding
Loop commands, rebindable voice keys, and 18 fixes for stdin freezes, startup hangs, forked conversations, and plugin conflicts in Claude Code 2.1.71.
Claude Code 2.1.70: Proxy Gateway & Voice Fixes
Claude Code 2.1.70 fixes proxy gateway API errors, Windows voice mode failures, and adds native MCP server management. Includes 300× Remote Control polling reduction and new VS Code session sidebar.
Claude Code 2.1.68: Opus 4.6 Medium Effort Default
Opus 4.6 now defaults to medium effort for Max/Team subscribers. Ultrathink keyword returns for high-effort reasoning. Opus 4 and 4.1 deprecated.
Claude Code 2.1.69: Security Fixes, Memory Leaks, Voice Expansion
Claude Code 2.1.69 patches critical security issues, fixes macOS keychain corruption, adds 10 new Voice languages, and resolves dozens of memory leaks and edge cases in long sessions.