Neo4j 3.1 introduces increased control over database query management for administrators, allowing them to list and terminate currently running queries visible to users. This feature simplifies cluster topology management with the introduction of the Neo4j Browser widget, which lists all currently running queries in the cluster. Additionally, security event logging is introduced to record critical security and access control events, including login attempts, user management actions, and failed authentication attempts, providing a detailed log for administrators to review and customize log rotation settings.