The third milestone release of Neo4j 2.3 is now available for download, offering improved features such as triadic selection for better recommendations, a "Property Must Exist" constraint to enforce data consistency, and enhanced delete operations. The release also includes new powershell scripts for managing Neo4j on Windows, query warnings in the Neo4j Browser to help with query optimization, and additional features like range queries using index seeks and inequality predicates chaining. With this milestone, Neo4j 2.3 is nearly feature complete, and developers are invited to try out the release and provide feedback.