Claude Code v2.1.316 Adds Gateway Controls and Model Settings
AI summary
Claude Code v2.1.316 added shared monthly group budgets, layered managed policies, and guardrail input tagging for Amazon Bedrock upstreams in the Claude apps gateway. It also introduced controls for disabling the ultrathink keyword, retaining looped cross-certificates, and setting subagent effort, alongside fixes for shell execution, model fallback, restricted file access, and other issues. The release notes also deprecate fast mode for Opus 4.8 on October 30, 2026, with removal scheduled for November 30, 2026.
In-depth insight
The update gives Claude Code administrators more granular control over spending, policies, model selection, and prompt-attack filtering, while changing how developers configure subagent effort and private-CA deployments.