Claude Code v2.1.85: Conditional Hooks, MCP OAuth RFC 9728, PreToolUse AskUserQuestion, and Organization Plugin Policies

Releasebot·high signal

Released March 26, v2.1.85 adds a conditional `if` field for hooks using permission rule syntax (e.g., `Bash(git *)`) to filter when hooks fire, reducing process spawning overhead. MCP OAuth now follows RFC 9728 Protected Resource Metadata discovery, new env vars (CLAUDE_CODE_MCP_SERVER_NAME, CLAUDE_CODE_MCP_SERVER_URL) enable one headersHelper to serve multiple MCP servers, and organization policies can now prevent plugin installation and marketplace visibility. Also fixes MCP step-up authorization failing when refresh tokens exist.