Claude Code 2.1.218 Moves /code-review to a Background Subagent
Claude Code 2.1.218 runs /code-review as a background subagent instead of filling the main conversation, and fixes a bug where the left arrow key discarded the conversation with no undo.
What it is
The latest Claude Code release, following 2.1.217's emoji autocomplete and MCP memory leak fix.
What it does
Changes /code-review to run as a background subagent so review work no longer fills the active conversation, adds screen-reader announcements for word and line deletions in ax-screen-reader mode, fixes Windows paths with backslash-u segments getting corrupted into CJK characters, and fixes the left arrow key silently discarding the conversation with no undo.
Why it matters
Running code review in the background instead of blocking the main thread means you can keep working while it evaluates stacked slash commands, a small but real workflow unblock after 2.1.215 made /code-review opt-in again.
How to use it
Update to 2.1.218 and run /code-review as usual; it now spins off a background subagent automatically instead of taking over your conversation.
Claude Code 2.1.217 Adds Emoji Autocomplete and Fixes an MCP Memory Leak
Claude Code 2.1.217 adds emoji shortcode autocomplete, warns when transcript writes fail instead of losing sessions silently, and fixes a memory leak from truncated MCP tool outputs.
Claude Code 2.1.215 makes /verify and /code-review opt-in again
Claude Code 2.1.215 stops automatically invoking the /verify and /code-review skills, requiring users to run them explicitly with the /verify or /code-review commands.
Claude Code 2.1.212 splits /fork into background sessions and adds runaway-loop caps
Claude Code 2.1.212 changes /fork to copy a conversation into a new background session, renames the old in-session subagent behavior to /subtask, and adds per-session caps on WebSearch calls and subagent spawns.