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Claude Code Adds Fast Mode, Mouse Support, and Enhanced Security Features

Claude Code has introduced a fast mode for remote sessions, mouse support in fullscreen configuration, and granular domain control for commands in sandboxed auto mode.

By Illumora Editorial

Source · Sep 14, 2026, 10:12 PM · On Illumora · Sep 14, 2026, 10:17 PM

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Read the source →Claude Code What's New + releases — Claude Code changelog - Claude Code Docs
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The Claude Code platform has released several updates, including a new fast mode for remote sessions, improved user interface controls, and enhanced security features. These changes apply to both cloud and self-hosted runner environments.

Key Points

  • A fast mode is now available in Claude Code Remote sessions, applicable in both cloud and self-hosted runner configurations, subject to organizational permissions.
  • Mouse support has been added to the /config panel in fullscreen mode, enabling wheel scrolling, click-based setting changes, and row highlighting.
  • The claude self-hosted-runner --drain-marker-file <path> command allows runners to report exits as host drains during a SIGTERM drain, providing telemetry.
  • Per-command allowed_domains can now be specified for Bash, PowerShell, and Monitor in auto mode with sandboxing, restricting host access to only those reviewed and opened for a specific command.
  • The omitClaudeMd option in agent frontmatter and --agents JSON allows custom and plugin subagents to operate without user, project, and local CLAUDE.md files, while still loading managed policy files.
  • The --accept-command <sha256> flag has been added to claude plugin install and claude plugin update for accepting specific commands displayed by a previous --json run, as an alternative to -y.
  • Support for a multiplier up to 10 has been added to the modelPricing managed setting.

Context

According to the Claude Code changelog, these updates aim to improve performance, user experience, and security within the development environment. The introduction of allowed_domains for sandboxed commands indicates a focus on granular control over resource access.

Why It Matters

These updates provide builders with more control over their Claude Code environments, offering performance enhancements, improved usability, and critical security features like fine-grained domain access for commands. The changes can influence how developers configure and secure their automated workflows and plugin installations.

What To Do

  • Review the Claude Code documentation for details on implementing the new fast mode in remote sessions.
  • Test the new mouse support in the /config panel during fullscreen mode to understand its impact on workflow.
  • Note the allowed_domains feature for Bash, PowerShell, and Monitor in auto mode with sandboxing to enhance security for command execution.
  • Consider using omitClaudeMd for custom and plugin subagents to streamline agent configuration.
  • Utilize the --accept-command <sha256> flag for precise control during plugin installation and updates.