Claude Code v2.1.154

Summary

- Opus 4.8 is here! Now defaults to high effort · /effort xhigh for your hardest tasks - Introducing dynamic workflows: ask Claude to create a workflow and it orchestrates work across tens to hundr...

Release Notes

- Opus 4.8 is here! Now defaults to high effort · /effort xhigh for your hardest tasks - Introducing dynamic workflows: ask Claude to create a workflow and it orchestrates work across tens to hundreds of agents in the background, so you can take on larger, more complex tasks. Run /workflows to view your runs - Fast mode on Opus 4.8 is now available at a fraction of its previous cost: 2x the standard rate for 2.5x the speed - The lean system prompt is now the default for all models except Haiku, Sonnet, and Opus 4.7 and earlier - Claude now reserves the multiple-choice question prompt for decisions it genuinely cannot make itself, instead of asking when it already has enough context to proceed - /simplify now runs a cleanup-only review (reuse, simplification, efficiency, altitude) and applies the fixes, instead of running the full /code-review --fix bug-hunting review - Renamed the /effort slider labels from "Speed"/"Intelligence" to "Faster"/"Smarter" for clarity - claude agents: type ! <command> to run a shell command as a background session you can attach to and detach from. Also available as claude --bg --exec '<command>' - claude agents: /logout now signs you out instead of being sent to a background session - ←← to open the agents view now works on Bedrock, Vertex, Foundry, and with telemetry disabled - Claude in Chrome: pick which connected browser to use via /chrome → "Select browser…", or in-chat when a browser action runs with multiple connected - Plugins can now declare defaultEnabled: false in plugin.json or a marketplace entry; enable them with /plugin or claude plugin enable. Dependencies of enabled plugins are still enabled automatically - The /plugin Discover tab now pins plugins whose relevance signals match the current directory with a "suggested for this directory" annotation - Streaming tool execution is now always enabled, including when telemetry is disabled or on Bedrock/Vertex/Foundry (previously behind a feature flag) - Stdio MCP server subpr

View original release

Other Recent Claude Code Releases

All Claude Code releases · All AI coding tool releases on Havoptic