← Claude Code changelog

Claude Code 2.1.147

This release introduces persistent pinned background sessions, which now stay alive, restart for updates, and are protected under memory pressure, enhancing reliability for long-running tasks. The /simplify command has evolved into /code-review, offering dedicated correctness bug detection with configurable effort levels and direct GitHub PR comment integration. Significant quality-of-life improvements include fixing pasted text appearing as placeholders, enhanced auto-updater reliability, faster diff rendering for large files, and ensuring enterprise login restrictions are enforced. Various stability and user experience fixes address issues for PowerShell users, plugin developers, Windows Terminal, and command-line interactions.

Improved

  • Improved auto-updater: retries transient network failures, reports specific error categories and OS error codes on failure, and shows the current version when an update fails
  • Improved diff rendering performance for large file edits

Changed

  • Pinned background sessions (`Ctrl+T` in `claude agents`) now stay alive when idle, are restarted in place to apply Claude Code updates, and are shed under memory pressure only after non-pinned sessions
  • Prompt history no longer records consecutive duplicate entries — recalling a prompt with arrow-up and submitting it again won't add another copy

Fixed

  • Renamed `/simplify` to `/code-review`. It now reports correctness bugs at a chosen effort level (e.g., `/code-review high`); pass `--comment` to post findings as inline GitHub PR comments. The old cleanup-and-fix behavior has been removed
  • Fixed enterprise login restrictions (`forceLoginOrgUUID` and `forceLoginMethod` managed-settings) not being enforced against third-party-provider and API-key sessions
  • Fixed `&` in `!` command output displaying as `&`, which broke copy-pasting URLs from commands like `gcloud auth login` on headless machines
  • Fixed unknown slash commands silently doing nothing in headless/SDK mode — they now show an error message
  • Fixed `/help` rendering a broken tab header and showing only one command per page on small terminals when not in fullscreen mode
  • Fixed shell snapshot dropping user functions whose names start with a single underscore, which broke aliases referencing them
  • Fixed plugin agents that declare multiple `Agent(...)` types in `tools:` frontmatter dropping all but the last entry
  • Fixed hook `if` conditions like `PowerShell(git push*)` never matching — only `PowerShell(*)` worked
  • Fixed PowerShell tool dropping output for commands that rely on the default formatter
  • Fixed: on Windows, "Yes, and don't ask again" for a PowerShell script invocation now writes a rule that actually matches on subsequent runs
  • Fixed PowerShell tool failing on Windows with exit code 1 when `pwsh` is installed via winget or the Microsoft Store
  • Fixed `/effort` opening with the slider on the wrong level — it now starts at your current effort
  • Fixed paginating MCP servers dropping resources, templates, and prompts past page 1
  • Fixed full-screen strobing in attached background sessions on Windows Terminal while Claude is streaming
  • Fixed: on Windows, removing a background-job worktree no longer follows NTFS junctions into the main repo
  • Fixed `/background` refusing sessions whose only typed input was a skill or custom slash command
  • Fixed auto mode suppressing `AskUserQuestion` when the user or a skill explicitly relies on it; the auto-mode classifier now sees the user's answers as intent signal
  • Fixed `/theme` "New custom theme" and color editor dialogs not responding to Esc
  • Fixed an uncaught exception at the end of streaming sessions when running via the Agent SDK
  • Fixed a rare hang when waiting for scroll to settle on Windows
  • Fixed stale and doubled rows in the agent view list on Windows when background session results contain wide (CJK) characters
  • Fixed pasted text being delivered to agents as an unreadable `[Pasted text #N]` placeholder instead of the actual content
  • Fixed plugin component counts in `claude plugin details` and `/plugin` being doubled when a plugin's manifest listed paths overlapping its default directories
  • Fixed backgrounded sessions re-prompting for tool permissions you already granted with "don't ask again"
  • Fixed GNOME Terminal right-click and middle-click paste not inserting text
  • Fixed `CLAUDE_CODE_SUBAGENT_MODEL` not applying to teammate processes spawned by agent teams
  • Fixed slash commands followed by a tab or newline being treated as an unknown command
  • Fixed several spacing and layout glitches in the `/plugin`, `/status`, `/mobile`, `/sandbox`, and `/permissions` menus
  • Fixed stripped images prompting the model to repeatedly re-read media that was no longer present