You can get it from here

New features in GeoGebra 3.2:

• Spreadsheet View (see "View" menu)
• Automatic animation of sliders (right/command click a slider)
• New tools: Compass, Mirror at Circle, conics, Best Fit Line, Record to Spreadsheet
• Commands for statistics functions and diagrams
• Matrix and complex number support
• Layers and dynamic colors
• Export to PGF/TikZ
• 45 languages

Find out about all this and more in our GeoGebra 3.2 Release Notes All new features are described in our fully revised manual "GeoGebra Help"