Conversation ID Tracking: A new conversation ID system has been introduced that automatically generates and tracks unique identifiers for each conversation branch. This enables better organization of chat history and conversation forks.
Example: When you start a new conversation or fork an existing one, Claude Code now assigns it a unique ID like a3b2c1d4e5f6 that persists throughout the session.
Improved Command Permission System
Deny Rules for Commands: The Bash tool now supports explicit deny rules in addition to allow rules. This provides more granular control over which commands Claude can execute.
You can now specify both allowed and denied command patterns
Deny rules take precedence over allow rules for enhanced security
Example: You could allow all git commands except git push by setting appropriate rules
