TL;DR

• OTel now logs assistant responses by default when you already log prompts. The new claude_code.assistant_response event follows OTEL_LOG_USER_PROMPTS unless you set OTEL_LOG_ASSISTANT_RESPONSES=0.
• Idle background shell commands now get reaped under memory pressure. Disable with CLAUDE_CODE_DISABLE_BG_SHELL_PRESSURE_REAP=1 if you depend on long-lived background processes.
• autoMode.classifyAllShell routes every Bash/PowerShell command through the auto-mode classifier. Opt-in setting; previously only arbitrary-code-execution patterns triggered classification. (more below)
• MCP headersHelper auto-reconnects on 401/403. If your MCP auth tokens expire mid-session, the helper now re-runs and reconnects without manual intervention.

New in 2.1.193, 2.1.191, 2.1.190

2.1.193 (June 26, 2026)

• Added autoMode.classifyAllShell setting to route all Bash/PowerShell commands through the auto-mode classifier instead of only arbitrary-code-execution patterns
• Added auto-mode denial reasons to the transcript, the denial toast, and /permissions recent denials
• Added claude_code.assistant_response OpenTelemetry log event containing the model's response text. Redacted unless OTEL_LOG_ASSISTANT_RESPONSES=1; when that var is unset it follows OTEL_LOG_USER_PROMPTS, so deployments that already log prompt content will start receiving response content on upgrade. Set OTEL_LOG_ASSISTANT_RESPONSES=0 to keep prompts-only.
• Added live file path autocomplete to bash mode (!)
• Added a startup notice when MCP servers need authentication, pointing at /mcp
• Added automatic memory-pressure reaping for idle background shell commands (disable with CLAUDE_CODE_DISABLE_BG_SHELL_PRESSURE_REAP=1)
• Fixed /model and other client-data-gated UI showing stale/empty state immediately after /login
• Fixed backgrounding spuriously cancelling with "N background tasks would be abandoned" when all running tasks carry over to the new session
• Fixed pinned background agents being re-prompted to "Continue from where you left off" after every auto-update
• Fixed backgrounding the main turn spawning a phantom "general-purpose (resumed)" subagent that re-ran the main conversation
• Fixed agent panel hiding sibling agents when viewing a subagent
• Improved background agents: the launch result no longer instructs Claude to "end your response", it keeps working on other tasks while the agent runs
• Improved MCP headersHelper auth: the helper now re-runs and reconnects automatically when a tool call returns 401/403
• Improved plugin auto-rename: marketplace renames maps are now followed automatically, updating your settings to the new name
• Improved /add-dir message when the directory is already a working directory

2.1.191 (June 26, 2026)

• Added /rewind support for resuming a conversation from before /clear was run
• Fixed scroll position jumping to the bottom while reading earlier output during a streaming response
• Fixed background agents resurrecting after being stopped, stopping an agent from the tasks panel is now permanent
• Fixed /voice showing a generic "not available" message when disabled by an organization's policy, it now explains the restriction
• Fixed /login URL opening truncated in Windows Terminal when it wraps across lines
• Fixed Cmd+click on links in fullscreen mode for Ghostty over ssh/tmux
• Fixed claude agents sending builtin slash commands like /usage to background sessions as prompt text instead of showing a hint
• Fixed claude agents job rows showing full filesystem paths for pasted images instead of the [Image #N] placeholder
• Fixed hooks with comma-separated matchers (e.g. "Bash,PowerShell") silently never firing
• Fixed /permissions Recently-denied tab: approving a denial now persists on close instead of being silently discarded
• Fixed the agent panel jumping by one row when scrolling the roster past the overflow cap
• Fixed the welcome splash art overflowing the default 80x24 macOS Terminal window
• Fixed managed settings: forceRemoteSettingsRefresh now takes effect when set via MDM or file policy, and the fetch sends Cache-Control: no-cache to prevent proxies from serving stale responses
• Improved sandbox network permission dialog: hosts you allow with "Yes" are now remembered for the rest of the session instead of re-prompting on every connection
• Improved MCP server reliability: capability discovery (tools/list, prompts/list, resources/list) now retries transient network errors with short backoff
• Improved MCP OAuth: discovery and token requests now retry once after transient network errors, and headless environments skip the browser popup and go straight to the paste-the-URL prompt
• Improved MCP error messages: HTTP 404 errors now show the URL and point to your MCP config
• Improved vim mode prompt-history search (NORMAL /) to hint how to reach slash commands
• Reduced CPU usage during streaming responses by ~37% by coalescing text updates to 100ms
• Reduced long-session memory growth from terminal output cache

2.1.190 (June 26, 2026)

• Bug fixes and reliability improvements

Notes