Claude Code 2.1.211 Changelog, Simplified

TLDR

Smarter background helpers: You can now see the "thinking" process of Claude's helper agents in your data streams.
No more zombie tasks: Fixed annoying bugs where background tasks would restart themselves after being closed or get stuck forever.
Wallet-friendly fixes: Fixed a major bug on cloud platforms that was accidentally charging users extra money by not caching repeated prompts.
Smoother, safer coding: Squashed several bugs related to security, screen readers, and random logouts when your computer wakes up from sleep.
This update is all about making Claude Code more reliable, secure, and cheaper to run. If you use Claude to write code in the background while you work, or if you run Claude through cloud platforms like AWS Bedrock or Google Vertex, this release fixes several annoying bugs that were slowing you down or costing you extra money.

See helper agent "thoughts": When you stream Claude's data as JSON (a standard text format for data), you can now include the text and "thinking" process of subagents (smaller helper AIs that Claude spins up to do specific tasks).
Save screenshots to disk: If you use the Claude in Chrome extension, taking a screenshot can now actually save the image file directly to your computer.

Faster terminal: The command-line interface looks cleaner and loads much faster.
Smarter memory warnings: Claude is now more accurate when warning you about memory limits, ignoring hidden code comments so it doesn't give you false alarms.
Persistent permissions: If you tell Claude to "always allow" a certain action, it will now remember that choice even if you switch to a different folder (or Git worktree) in the same project.
Accidental admin pings blocked: The /usage-credits command will now double-check with you before sending an alert to your team's administrator asking for more budget.
Scientific numbers: You can now use scientific notation (like 1e6 for a million) or underscores (like 64_000) in your settings files.

Prompt caching fixed (Money Saved!): Fixed a bug on cloud platforms (like Bedrock and Vertex) that stopped Claude from remembering recently used prompts. This was causing users to be billed for the same text over and over again.
Security trick blocked: Fixed a security loophole where sneaky, invisible, or look-alike characters in a tool's name could visually alter the approval message, tricking you into agreeing to something unsafe.
No more mass logouts: Waking your computer up from sleep will no longer log you out of all your active Claude sessions at once.
Zombie agents stopped: Fixed background tasks ("agents") that would automatically restart themselves after you killed them, or run old, outdated prompts.
No more stuck tasks: If Git lost track of a background task, it used to become permanently undeletable. Now, Claude will tell you exactly why it can't delete it instead of just ignoring you.
Cost tracker reset: Typing /clear now properly resets your session cost counter back to $0.
Screen reader fix: Fixed a bug where visually impaired users using screen readers would lose the terminal's audible "bell" sound after setup.
Lag reduction: Removed a 300-millisecond delay when loading settings, stats, and code differences.

No breaking changes in this release.

Claude Code v2.1.211 Changelog