Friends, @marc_krenn here. I haven't updated @ClaudeCodeLog in a while, and I'd love to hear what you'd like to see improved. Anything I could change to make the account more useful, relevant, fun or interesting to you? Really appreciate any feedback & have a nice weekend! :)

Claude Code 2.1.312 is about to be released #cccnext

Claude Code 2.1.311 is about to be released #cccnext

Claude Code 2.1.310 is about to be released #cccnext

Claude Code 2.1.309 is about to be released #cccnext

Claude Code 2.1.308 further changes Metadata: • Time since 2.1.307 release: 7h 48m 35s • Bundle file size: +10.1 kB (+0.0%) • Prompt files: +3 (+9.7%) • Prompt tokens: +10,950 (+17.7%) Prompt token mix by kind: • system: 57.5%→57.9% • tools: 42.5%→42.1% Files: • metadata: github.com/marckrenn/claude-… • prompt stats: github.com/marckrenn/claude-… More details: github.com/marckrenn/claude-…

Claude Code CLI 2.1.308 changelog: Other change: • Bug fixes and reliability improvements Source: github.com/anthropics/claude…

Claude Code 2.1.308 has been released. 1 CLI change Highlights: • CLI bug fixes and reliability improvements that reduce failures and produce smoother, more stable behavior Further details in thread ↓

Claude Code 2.1.308 is about to be released #cccnext

Claude Code 2.1.307 additional updates CLI surface: Added: • env vars: CLAUDE_CODE_SPAWNED_BY_SERVER, CLAUDE_SSH_DAEMON_CHILD, CLAUDE_SSH_RUN_DIR, SELF_HOSTED_RUNNER_AGENT_PROXY_URL, SELF_HOSTED_RUNNER_CHECKOUT_HOOK_TIMEOUT_MS, SELF_HOSTED_RUNNER_DIFF_FINDS_NESTED_REPOSITORY • models: claude-lsremote-T Removed: • env vars: AGENT_PROXY_AUTH_TOKEN, AGENT_PROXY_URL • models: claude-haiku-3-5, claude-lsremote-E File: github.com/marckrenn/claude-… Metadata: • Time since 2.1.306 release: 18h 41m 11s • Bundle file size: +483.1 kB (+0.7%) • Prompt files: +1 (+3.3%) • Prompt tokens: +4,281 (+7.5%) Prompt token mix by kind: • system: 51.0%→57.5% • tools: 49.0%→42.5% Files: • metadata: github.com/marckrenn/claude-… • prompt stats: github.com/marckrenn/claude-… More details: github.com/marckrenn/claude-…

Claude Code 2.1.307 system prompt updates Notable changes: 1) Claude’s tool-hook guidance is cleaned up: the Harness bullet now ends after “treat hook output as user feedback” instead of the malformed “feedback.Response”. This reduces ambiguity/noise in how Claude interprets hook output during tool use. Links: 1) github.com/marckrenn/claude-…

Claude Code CLI 2.1.307 changelog: New features: • Added /claude-api api-version to move Claude API code to API version 2026-10-21 • Added the claude_code.safety_event OpenTelemetry event for each tool call a permission rule, auto mode, a safety check, a hook or the sandbox stopped, prompted or sent back Fixes: • Fixed requests failing with a model-not-found error when CLAUDE_CODE_DISABLE_1M_CONTEXT is set and the model is an alias with the [1m] suffix, such as opus[1m] • Fixed the prompt-caching-scope beta header being sent behind custom ANTHROPIC_BASE_URL gateways and on Foundry, where it has no effect • Fixed MCP servers showing "needs authentication" in claude -p on macOS while the login keychain was locked; they now say why, and the next run after an unlock connects without a new sign-in • Fixed MCP servers being reported as timed out, and staying failed in headless runs, when a macOS or Linux computer went to sleep while they were connecting • Fixed HTTP MCP tool calls being sent twice when the connection closed mid-call; only read-only or idempotent tools are now retried • Fixed a turn sometimes starting without an SDK MCP server's latest tools when a background task was running • Fixed some "Autocompact is thrashing" errors in turns that read many PDF pages, images or other large tool results • Fixed /autocompact in cloud sessions going back to the default window after the session restarted • Fixed a conversation cleared with /clear sometimes coming back when a cloud or self-hosted runner session restarted • Fixed CLAUDE_STREAM_FIRST_BYTE_TIMEOUT_MS being ignored in Claude apps gateway sessions • Fixed telemetry from Claude Desktop sessions behind a Claude apps gateway being rejected when OTEL_EXPORTER_OTLP_HEADERS is set • Fixed /permissions > Recently denied not showing the denied shell command, and auto mode's local classifier ignoring an approval from there when it checks a retried command; approving a row now names the command, not its description • Fixed /help and the / command menu showing long model-facing descriptions for bundled skills such as /claude-api instead of their short descriptions • Fixed subagent transcripts recording placeholder token usage and an empty stop reason for streamed responses • Fixed model switches through the Agent SDK's setModel(), and apps built on it, being refused when the API took more than 5 seconds to confirm the model; Claude Code now waits up to 15 seconds • Fixed a background command stopped through a connected app (such as the desktop app archiving an idle session) being reported to Claude as stopped by the user; the notice now names its output file • Fixed WebFetch in Cowork cloud sessions reporting a tool error when a site answered with a 4xx status or a robots.txt refusal; it is now a normal result, as in local sessions • Fixed write tools on a directly configured GitHub MCP server showing a form that closed without creating anything in the desktop app's Code tab • Fixed Artifact tool reads failing with a connection reset when the server had closed a reused connection Improvements: • Improved recovery from unparseable tool calls: Claude Code now retries the call up to twice before ending the turn with an error • Improved fork subagents launched together: each is now told which launch is its own, so forks are much less likely to try to start each other's work • Improved browser sign-in: the success page now appears as soon as sign-in completes, without waiting for your account profile to load • Improved web search errors in cloud and self-hosted runner sessions: a search refused with a 403 that gives a reason now shows that reason instead of a generic "Authentication error" • Improved the time to the first reply in cloud sessions when one of the desktop app's MCP servers can't connect • Improved Remote Control connect time for sessions whose transcript contains large pasted images or PDF reads Other changes: • Self-hosted runner: Fixed sessions with --use-anthropic-git-proxy committing a .claude/settings.local.json left in the clone by an earlier session • Self-hosted runner: Fixed archiving or requeueing a session, or stopping the runner, during its checkout hook leaving the hook's processes running and the runner's slot held • Changed the notice Claude gets when the WebSearch budget is used up to also tell it not to query search engines in a browser or through computer use • Changed the axScreenReader setting and CLAUDE_AX_SCREEN_READER in a settings env block to apply only from user, managed or --settings settings (since 2.1.305) • Self-hosted runner: Changed checkout hooks to be stopped after 30 minutes by default, failing the session's setup; if yours needs longer, raise --checkout-hook-timeout-min or set it to 0 • Self-hosted runner: Changed the certificate file built for Anthropic-managed git to filter its trusted certificates as the CLI does; a [runner:warn] line gives the number left out • [VSCode] Added a notice on the microphone button when voice dictation stops by itself (15 seconds without recognized speech, or the 2-minute limit), saying why and that the text so far is kept • [VSCode] Fixed a long prompt expanded with Show more covering the whole chat panel: a pinned prompt is now capped at 40% of the panel and scrolls • [VSCode] Fixed part of a list item or table cell with LaTeX math pasting as a new list or table in rich text editors • [VSCode] Fixed dictation failing behind a TLS-inspecting proxy when NODE_EXTRA_CA_CERTS is set only in ~/.claude/settings.json; it now also follows CLAUDE_CODE_CERT_STORE • [VSCode] Changed the "still open somewhere else" notice to also cover a Claude process left over from an extension restart, which usually ends on its own within about 10 minutes • [VSCode] Changed voice dictation to filter its trusted certificates as the CLI does • [VSCode] Changed the extension's own requests to filter their trusted certificates as the CLI does, and to trust the NODE_EXTRA_CA_CERTS file named in the environment or in user settings • [Cloud sessions] Fixed the repository picker saying "No repositories match" while a search was still running; it now shows "Searching…" until the results arrive • [Cloud sessions] Fixed the "Waiting for a runner" status on self-hosted environments being cut off; with on-demand runners it now counts up from your last message and shows failed attempts • [Code Review] Added @claude review stop (also off and pause) to Code Review, ending an @claude review always subscription on a pull request without starting a new review Source: github.com/anthropics/claude…

Claude Code 2.1.307 has been released. 43 CLI changes, 1 system prompt change Highlights: • Added /claude-api api-version to switch Claude API code to 2026-10-21, enabling updated API behavior • Stop double HTTP MCP sends on disconnect; only idempotent/read-only tools retried to avoid duplicates • The /clear command now makes cleared conversations persist across restarts, preventing them from reappearing Full details are in thread ↓

Claude Code 2.1.307 is about to be released #cccnext

Claude Code 2.1.306 additional modifications CLI surface: Added: • models: claude-lsremote-E Removed: • models: claude-lsremote-F File: github.com/marckrenn/claude-… Metadata: • Time since 2.1.305 release: 6h 54m 24s • Bundle file size: +0.0 kB (+0.0%) • Prompt files: +3 (+11.1%) • Prompt tokens: +9,115 (+18.9%) Prompt token mix by kind: • system: 48.6%→51.0% • tools: 51.4%→49.0% Files: • metadata: github.com/marckrenn/claude-… • prompt stats: github.com/marckrenn/claude-… More details: github.com/marckrenn/claude-…

Claude Code CLI 2.1.306 changelog: Fixes: • Fixed claude -p inside cloud sessions reporting "Not logged in" when started without the session's environment variables • Fixed an API error being replaced by "prompt is too long", and an unneeded compaction, in sessions with many MCP tools Source: github.com/anthropics/claude…

Claude Code 2.1.306 is now available. 2 CLI changes Highlights: • Fixed claude -p reporting 'Not logged in' in cloud sessions without env vars, restoring login status • Fixed API errors being replaced by 'prompt is too long' in MCP-heavy sessions, showing original API errors More details in thread ↓

Claude Code 2.1.306 is about to be released #cccnext

Claude Code 2.1.305: additional changes CLI surface: Added: • models: claude-lsremote-F Removed: • env vars: API_TIMEOUT_MS File: github.com/marckrenn/claude-… Metadata: • Time since 2.1.304 release: 23h 52m 39s • Bundle file size: +655.2 kB (+1.0%) • Prompt files: +3 (+12.5%) • Prompt tokens: +8,852 (+22.4%) Prompt token mix by kind: • tools: 54.3%→51.4% • system: 45.7%→48.6% Files: • metadata: github.com/marckrenn/claude-… • prompt stats: github.com/marckrenn/claude-… Other prompt/string highlights: 1) Adds a tool that executes a given Bash command and returns its output. 2) Adds a tool to start a new agent that handles complex multi-step tasks. Links: 1) github.com/marckrenn/claude-… 2) github.com/marckrenn/claude-… More details: github.com/marckrenn/claude-…

Claude Code CLI 2.1.305 changelog: New features: • Added sandbox.allowNestedUserNamespaces so sandboxed commands on Linux can create user namespaces (Chromium, rootless podman); this lets them get around the sandbox's file protections • Added CLAUDE_CODE_RETRY_WATCHDOG_USAGE_LIMIT_RECHECK_MS so unattended retry mode (CLAUDE_CODE_RETRY_WATCHDOG) notices a usage limit that was lifted before its reset Fixes: • Fixed every request failing on Vertex, Bedrock and other providers when the endpoint or a gateway rejects tool search, and behind gateways with ToolSearch disallowed or left out of --tools (a 2.1.304 regression): Claude Code now retries without it • Fixed /effort and /autocompact settings not applying when the model name differed from a modelOverrides value by letter case or a [1m] tag • Fixed new worktrees in a bare repository sometimes starting from local HEAD instead of the default branch, and unchanged subagent worktrees sometimes not being cleaned up • Fixed Bash commands on a full disk failing with a raw ENOSPC file path: the error now says the disk is full and that nothing ran • Fixed an MCP server passed by a cloud session or by the SDK's setMcpServers being replaced later in the session by a same-named server from your own settings • Fixed Claude naming the wrong model for a subagent's work after the subagent switched to a fallback model • Fixed cloud sessions and teammates not telling Claude when a compaction had to leave the oldest messages out of its summary to fit • Fixed more cases of scheduled Cowork cloud sessions waiting five minutes for each subagent whose WebFetch needed a URL approval that nobody was there to give • Fixed Workflow resume re-running already-completed pipeline() and parallel() agents instead of serving them from the run's journal • Fixed Remote Control leaving empty "(session)" entries in /resume after switching conversations with /resume • Fixed /usage rows being cut off in narrow terminals • Fixed startup warnings printing as raw text above the logo: they now go to the debug log, and permission rules that restrict nothing show as warning rows under the banner • Fixed screen reader mode: search boxes now say "Search:" instead of a symbol VoiceOver read as "telephone recorder", and highlighted prompt text, such as Ctrl+R search matches and "ultrathink", no longer has spaces inside words • Self-hosted runner: Fixed a start script that shares only its stdout with the runner or orchestrator failing with Resource temporarily unavailable when TERM is set (a 2.1.300 regression) Improvements: • Improved /usage: each warning is now a one-line fix that names its source, and f applies the fixes; the same fixes appear in VS Code and /doctor • Improved MCP consent dialogs so an Enter meant for the prompt is less likely to be taken as Accept • Improved a mod's Image to draw its picture in iTerm2 3.5 and later with fullscreen rendering, where it showed only its alt text Security/safety change: • Changed plugins that Claude Desktop mounts by path to no longer keep their allowed-tools when your organization's managed settings set allowManagedPermissionRulesOnly Other changes: • Self-hosted runner: Fixed repository access failing since 2.1.296 when a git credential helper or askpass program reads its settings through GIT_CONFIG • Self-hosted runner: Fixed the orchestrator reporting a spawn-runner hook as timed out when a runner it started in the background kept its output open • Remote Control: Improved the spawn-mode messages: pressing w now says the new mode is saved for the folder, and a later claude remote-control start that uses the saved mode says where it came from • Changed allowedMcpServers to stop filtering managed-mcp.json stdio servers that use ＄{VAR} only in env: one your allowlist left out now loads on upgrade; use deniedMcpServers to keep it off • Changed the /artifacts delete confirmation to take 1 or Enter to keep, 2 to delete, and Esc to cancel; y and n no longer answer it • Changed a mod's docked pane to stay within 45% of the terminal's width, including a width kept from a wider terminal • [VSCode] Added a "Running start-up hooks" spinner status, with a screen reader announcement, while SessionStart or Setup hooks run • [VSCode] Fixed the spinner cutting off "Compacting..." when your spinnerVerbs setting replaces the built-in verbs with short ones • [VSCode] Changed the message shown when a session does not start in time and no hook is running: it now leads with the output logs and lists causes instead of pointing to sign-in and network first • [Cloud sessions] Fixed the Cloud environments admin page wrongly refusing to save an existing environment with an "installs packages" error • [Cloud sessions] Improved deleting a self-hosted environment so the dialog and error messages say what blocks the delete and what it will affect • [Claude Tag] Added public Slack channels Claude hasn't joined to the Claude Tag admin Add place search, so admins can set one up from there • [Claude Tag] Fixed Claude Tag access bundles so a repository that moved to another GitHub account can be added again • [Claude Tag] Fixed a routine set up in a Slack DM thread no longer posting after another routine in that thread restarted the conversation; both now keep posting there • [Claude Tag] Fixed routines set up in a Slack thread reporting success without posting after the conversation ended; those runs are now skipped and the creator is told • [Claude Tag] Improved Claude Tag admin pages in large organizations so plugin, skill and bundle edits work while the channel list is still loading • [Code Review] Fixed Code Review sometimes not reviewing the newest commit when several pushes landed on a pull request during a review • [Code Review] Changed Code Review re-reviews so they no longer open with LGTM while earlier blocking findings are still open Source: github.com/anthropics/claude…

Claude Code 2.1.305 has been released. 38 CLI changes Highlights: • Executes a provided Bash command and returns its output so callers can directly capture shell results • System starts a new agent for complex tasks, delegating long workflows to dedicated subagents so they continue • Sandbox allows nested user namespaces on Linux, enabling Chromium and rootless podman to run there Complete details in thread ↓