Claude Code v1.0.85

What: Complete system for communicating rate limits, usage limits, and spending caps with clear, actionable messages How to use:

# You'll automatically see messages when approaching or hitting limits:
# "Approaching spending cap"
# "5-hour limit reached • resets in 2h 15m"
# "Weekly limit reached • resets Monday 9am"
# "Opus weekly limit reached • resets in 3 days"

Details:

• Different messages for 5-hour, weekly, and Opus-specific limits
• Human-readable reset times showing when limits clear
• Warnings when approaching limits before hitting them
• Special handling for team/enterprise accounts with admin contact guidance
• Spending cap and overage status tracking

What: Automatic background system that maintains structured notes about your ongoing development work How to use:

# Automatically activates after 5 messages in a session
# Notes are saved to ~/.claude/session-memory/[session-id].md
# Customize with your own templates:
mkdir -p ~/.claude/session-memory
echo "Your template" > ~/.claude/session-memory/template.md
echo "Your prompt" > ~/.claude/session-memory/prompt.md

Details:

• Captures task specifications, worklog, code documentation, and learnings
• Updates transparently in the background without interrupting your work
• Persists context across conversations for better continuity
• Customizable template and update prompts for project-specific needs

What: Structured validation system for environment variables with detailed feedback How to use:

# Set environment variables with automatic validation:
export BASH_MAX_OUTPUT_LENGTH=40000  # Validates and caps if needed
export CLAUDE_CODE_MAX_OUTPUT_TOKENS=16000  # Validates with warnings

# Invalid values show warnings but don't crash:
export BASH_MAX_OUTPUT_LENGTH=invalid  # Warning: Invalid value "invalid" (using default: 30000)
export BASH_MAX_OUTPUT_LENGTH=100000   # Warning: Capped from 100000 to 50000

Details:

• BASH_MAX_OUTPUT_LENGTH: Default 30000, max 50000 characters
• CLAUDE_CODE_MAX_OUTPUT_TOKENS: Default 32000, max 32000 tokens
• Non-fatal warnings for invalid or capped values
• Clear feedback about what values are actually being used

What: New hook event that fires when Claude Code shuts down, enabling cleanup actions How to use:

# Configure in your hooks file to run cleanup on exit:
# Hook will receive: {hook_event_name: "SessionEnd", reason: "logout" | "other"}

Details:

• Triggers before Claude Code exits
• Provides shutdown reason (logout vs other termination)
• Allows external programs to perform cleanup
• 2-second timeout ensures quick shutdown

What changed: More robust validation for heredoc patterns in bash command substitutions Previous behavior: Simple pattern matching could miss complex quoting scenarios New behavior: Multi-step validation ensures each heredoc is properly paired and safe Impact: Fewer false positives when using valid heredoc constructs with complex quoting patterns like cat <<'EOF' or cat <<\EOF

What changed: Improved handling of child processes during shutdown Previous behavior: Some child processes could linger after Claude Code exits New behavior: More thorough cleanup ensures all spawned processes terminate properly Impact: Cleaner system state after using Claude Code, no orphaned processes

• Issue: Valid heredoc patterns with multiple quotes were incorrectly rejected
• Cause: Regex pattern didn't account for all valid quoting variations
• Resolution: New validation logic handles complex delimiter patterns correctly
• Affected versions: v1.0.78 through v1.0.84

• Issue: Invalid CLAUDE_CODE_MAX_OUTPUT_TOKENS values could crash the application
• Cause: Direct error throwing without graceful fallback
• Resolution: Invalid values now trigger warnings and use defaults
• Affected versions: v1.0.80 through v1.0.84

• Issue: Some cleanup handlers weren't executing during normal shutdown
• Cause: Shutdown sequence didn't properly await all cleanup operations
• Resolution: Improved shutdown flow ensures all handlers run within timeout
• Affected versions: v1.0.82 through v1.0.84