For ChartDirector for C++ the latest version is 7.2.x . For ChartDirector for .NET the latest version is 7.1. For other programming languages, the latest version is 7.0.
ChartDirector Release Notes
Released: Jul 11, 2013
Updates in this release
Updates in V5.1.1
Updated C++ Header Files to Avoid Compiler Warnings - Chartdir.h updated to remove unused variable warnings.
OpenJDK 7 JPEG Output Compatibility - To maintain compatibility with OpenJDK 7, ChartDirector 5.1.1 has been modified to use Java ImageIO for JPEG output.
Improved ClearType Support in Java - Render text more accurately on Windows and Java 7 platforms.
Python 3.x - WebChartViewer has been updated to support Python 3.x