Claude Code 2.1.177 has been released. CLI changes have not yet been released; they will be appended to this thread when published Full details available in thread ↓

Claude Code 2.1.176 has been released. 22 CLI changes Highlights: • Grep help suggests ripgrep, clarifies output/head_limit/offset, improving searches and predictable slicing • availableModels blocks env-var aliases redirecting to blocked models, avoiding accidental selection • Bedrock awsCredentialExport credentials cached until Expiration, not fixed 1h, preventing expiry and refreshes Complete details in thread ↓

Claude Code CLI 2.1.176 changelog: New feature: • Added footerLinksRegexes setting for regex-matched link badges in the footer row, configurable via user or managed settings Fixes: • Fixed availableModels enforcement: alias model picks can no longer be redirected to a blocked model via ANTHROPIC_DEFAULT_*_MODEL environment variables, and /fast now refuses to toggle when it would switch to a model outside the allowlist • Fixed auto mode failing on Fable 5 for organizations without Opus 4.8 enabled — the classifier now falls back to the best available Opus model • Fixed hook if conditions for Read/Edit/Write tool paths: documented patterns like Edit(src/), Read(~/.ssh/), and Read(.env) now match correctly • Fixed Linux sandbox failing to start when .claude/settings.json is a symlink with an absolute target • Fixed /copy and mouse-selection copy not reaching the system clipboard inside tmux over SSH, and tmux paste buffer not loading on versions older than 3.2 • Fixed Remote Control connecting from web/mobile silently switching the session's model • Fixed Remote Control disconnect notifications showing a bare numeric code instead of a human-readable reason, and connection failures adding a duplicate line to the conversation transcript • Fixed Remote Control sessions not disconnecting when you sign in to a different account • Fixed /cd and worktree moves leaving the session reporting the previous directory's git branch • Fixed claude agents: pressing back in one window no longer detaches other windows attached to the same session • Fixed backgrounded sessions showing "Working" forever when /bg mid-turn had nothing left to continue • Fixed background agent search by PR URL: PRs opened during scheduled wakeups or while a job was blocked now appear in claude agents search • Fixed the agents view input showing no text cursor on Windows • Fixed claude --bg -cn <name> not seeding the session name • Fixed background sessions to neutralize Windows network paths in persisted state before respawn • Fixed background-session respawn rejecting malformed resume IDs from corrupted state files • Fixed the Windows background-service daemon not starting when ~/.claude/daemon has the ReadOnly attribute set • Fixed cloud sessions failing with "Could not resolve authentication method" when idle for too long before being claimed Improvement: • Improved Bedrock credential caching: credentials from awsCredentialExport are now cached until their Expiration instead of a fixed 1 hour Other changes: • Session titles are now generated in the language of your conversation (set the language setting to pin a specific language) • Background sessions now show clearer guidance when a window left open across an auto-update can't submit a reply, and claude daemon status explains version-skew behavior Source: github.com/anthropics/claude…

Claude Code 2.1.175 is now available. 1 CLI change Highlights: • enforceAvailableModels makes availableModels constrain the Default, so it can't resolve to disallowed models Full details available in thread ↓

Claude Code CLI 2.1.175 changelog: New feature: • Added enforceAvailableModels managed setting — when enabled, the availableModels allowlist also constrains the Default model (a Default that would resolve to a disallowed model now falls back to the first allowed model), and user or project settings can no longer widen a managed availableModels list Source: github.com/anthropics/claude…

Claude Code 2.1.174 has been released. 13 CLI changes Highlights: • Background sessions stop inheriting ANTHROPIC_* env, blocking gateway URL, custom header & /model leaks • VS Code /usage shows per-skill/agent/plugin/MCP usage breakdowns for precise billing and troubleshooting • Searches now always run via grep; output modes, line limits, and offsets clarified for predictable results Full details in thread below ↓

Claude Code CLI 2.1.174 changelog: New feature: • Added wheelScrollAccelerationEnabled setting to disable mouse-wheel scroll acceleration in fullscreen mode Fixes: • Fixed the /model picker hiding the model family that Default resolves to — Opus now appears as its own row on Max/Team Premium/Enterprise plans, Sonnet on Pro/Team plans, and Opus on pay-as-you-go API accounts • Fixed /model picker showing a hardcoded Sonnet version label when ANTHROPIC_DEFAULT_SONNET_MODEL pins a different Sonnet • Fixed the "Fable 5 is now consuming usage credits" banner incorrectly showing for enterprise accounts with usage-based billing • Fixed Bedrock GovCloud regions (us-gov-*) deriving the wrong inference profile prefix (global instead of us-gov), causing 400 errors on derived model IDs • Fixed background sessions inheriting another session's ANTHROPIC_* provider env (gateway URL, custom headers, /model aliases) from the shell that started the background daemon • Fixed a 1-2 second pause when exiting Claude Code shortly after a shell command was interrupted or killed on macOS and Linux • Fixed git commit co-author attribution showing an incorrect model name for some models • Fixed the /advisor dialog pre-selecting a saved advisor model that is blocked by the availableModels allowlist • Fixed skill hot-reload re-sending the entire skill listing when a single skill changed; only changed skills are now re-announced • Fixed Workflow tool agent() subagents missing per-agent attribution headers • Fixed pre-warmed background workers failing with "Could not resolve authentication method" when claimed after sitting idle Other change: • [VSCode] Added usage attribution to the Account & usage dialog (/usage) showing cache misses, long context, subagents, and per-skill/agent/plugin/MCP breakdowns over the last 24h or 7d Source: github.com/anthropics/claude…

Claude Code 2.1.173 has been released. 2 CLI changes Highlights: • Strip '[1m]' suffix from Fable 5 model names to prevent default 1M context from breaking model matching • Suppresses spurious 'sandbox dependencies missing' Windows startup warning to avoid false alarms • grep help clarifies output modes, context/line-number behavior and head_limit defaults for predictable output Full details available in thread ↓

Claude Code CLI 2.1.173 changelog: Fixes: • Fixed Fable 5 model names with a [1m] suffix not being normalized — Fable 5 includes 1M context by default, so the suffix is now stripped automatically • Fixed a spurious "sandbox dependencies missing" startup warning on Windows when sandbox was enabled in settings Source: github.com/anthropics/claude…

Claude Code 2.1.172 has been released. 30 CLI changes Highlights: • Sub-agents can spawn nested sub-agents up to five levels, enabling deeper multi-agent workflows • 1M-context sessions without usage credits now auto-compact to standard limits, avoiding permanent stalls • Marketplace plugin browser (/plugin) adds a search bar to speed plugin discovery and reduce browse time Full details available in thread ↓

Claude Code CLI 2.1.172 changelog: New features: • Added a search bar when browsing a marketplace's plugins in /plugin • Added model attribute to the claude_code.lines_of_code.count OTEL metric Fixes: • Fixed sessions using 1M context without usage credits getting permanently stuck — the session now automatically compacts back under the standard context limit • Fixed a repeating "an image in the conversation could not be processed and was removed" error when the conversation contained multiple images • Fixed the agents view keeping a session under Working with a busy spinner for up to 30 seconds after the worker replied • Fixed background agents potentially reading another directory's project settings (.mcp.json approvals, trust) when dispatched onto a pre-warmed worker • Fixed background-session attach failing with EAUTH for sessions started on an older version after the daemon auto-updated • Fixed a background sub-agent staying stuck as "active" in the agent panel after a nested agent it spawned was stopped • Fixed /model suggestions in the claude agents dispatch input rendering with a misleading slash prefix and showing models disabled for your org • Fixed availableModels restrictions not being applied to subagent model overrides, the agent dispatch model picker, and the advisor model • Fixed availableModels allowlists hiding the /model picker's Opus and Sonnet 1M rows when entries use version-specific IDs like claude-opus-4-8 • Fixed the /model picker on Bedrock offering models the provider doesn't serve — selecting one silently switched the session model and lit the selection marker on multiple rows • Fixed model IDs getting a doubled 1M-context suffix (e.g. [1M][1m]) when ANTHROPIC_DEFAULT_OPUS_MODEL already includes one • Fixed opusplan model setting not shipping with 1M context in plan mode for entitled users; the opusplan[1m] workaround now also correctly switches to Opus in plan mode • Fixed WebFetch(domain:*.example.com) wildcard domain rules never matching subdomains in allow, deny, and ask position, and file permission rules with mid-pattern wildcards (e.g. Read(secrets-*/config.json)) being rejected at startup • Fixed up-arrow prompt history showing the main agent's prompts while a subagent's chat tab is open • Fixed memory recall not finding mounted team memory stores (CLAUDE_MEMORY_STORES) in remote sessions • Fixed workflow validation rejecting scripts whose prompt strings or comments merely mention Date.now()/Math.random() • Fixed the /plugin marketplace list losing its cursor after backing out of a long plugin list, and Esc from the plugin browser returning to the wrong tab Improvements: • Improved performance in long conversations by removing redundant message normalization and avoiding full message-history transforms when streaming tool-use state is unchanged • Improved Claude in Chrome tool loading: browser tools now load in a single batched call instead of one per tool • Improved the non-interactive Usage Policy refusal message to suggest starting a new session or changing your model Security/safety change: • [VSCode] Fixed PowerShell tool calls rendering as raw JSON instead of a proper command display and permission dialog, and stripped ANSI escape codes from displayed shell output Other changes: • Sub-agents can now spawn their own sub-agents (up to 5 levels deep) • Amazon Bedrock now reads the AWS region from ~/.aws config files when AWS_REGION isn't set, matching AWS SDK precedence; /status shows where the region came from • Disable mouse tracking on Windows consoles that don't fully support it • Reduced idle CPU usage: /goal status chip no longer re-renders the terminal at 5 Hz while idle, and fewer UI re-renders while subagents run in parallel • /code-review now keeps the ultra option visible when you're not signed in to claude.ai, with an explanation that the cloud review requires a claude.ai account • Shortened the Remote Control footer indicator to "/rc active" and hid it on narrow terminals • Stopped promoting /loop in remote sessions, where pending loops don't keep the container alive Source: github.com/anthropics/claude…