After a Claude Code update the tool starts failing with "unexpected token" errors when parsing responses. The team wants to roll back to the previous version while they investigate. What is the fastest approach?
Answer: Run `npm install -g @anthropic-ai/claude-code@<previous-version>`
Claude Code is installed as a global npm package, so `npm install -g @anthropic-ai/claude-code@<version>` will install a specific prior version and overwrite the current one immediately. There is no ~/.claude/backups/ directory. CLAUDE_VERSION is not a valid environment variable for version pinning. Editing package.json in a project does not affect the globally installed binary.