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161161When you rename a session from claude.ai or the Claude app, Claude Code also updates the local title shown in `claude --resume`. Claude Code applies the same rename to the session name shown on the prompt bar, and in the `claude agents` listing when the session [runs in the background](/docs/en/agent-view). Before v2.1.221, renaming from the session list at claude.ai or in the Claude app updated only the title, and the CLI kept its previous session name; `/rename`, which runs in the CLI itself, set the name on any version.
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163If you don't have the Claude app yet, use the `/mobile` command inside Claude Code to display a download QR code for [iOS](https://apps.apple.com/us/app/claude-by-anthropic/id6473753684) or [Android](https://play.google.com/store/apps/details?id=com.anthropic.claude).
163If you don't have the Claude app yet, run `/mobile` inside Claude Code to show a QR code for [claude.ai/mobile](https://claude.ai/mobile), which opens the right app store for your phone.
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165165### What connected devices see
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