New features / v2.1.271
Fast mode in Remote sessions
CHANGELOG · original
Added fast mode in Claude Code Remote sessions (cloud and self-hosted runners): the host's fast-mode setting or /fast typed in the session applies where your organization allows it Open official changelog ↗ Documentation
Documentation excerpt
Use fast mode in cloud sessions
Fast mode works in cloud sessions when it's available on your account, whether the session runs on Anthropic-managed infrastructure or a self-hosted runner. Requires Claude Code v2.1.271 or later in the session's environment.
Type /fast on in the session to turn fast mode on. It stays on for that session only and isn't saved as your default. The requirements apply in cloud sessions too.
Documentation snapshot · 2026-09-23