Requirements

The following matrix shows which minimum version of Java is necessary to run a specific Weka version. The latest official releases of Weka require Java 8 or later.

Note that if you are using Windows and your computer has a display with high pixel density (HiDPI), you may need to use Java 9 or later to avoid problems with inappropriate scaling of Weka's graphical user interfaces.

Weka	Java 1.4	Java 5	Java 6	Java 7	Java 8 or later
<3.4.0	☑	☑	☑	☑	☑
3.4.x	☑	☑	☑	☑	☑
3.5.x	<3.5.3	☑	☑	☑	☑
3.6.x		☑	☑	☑	☑
3.7.x		3.7.0	<3.7.14	☑	☑
3.8.x				<3.8.2	☑
3.9.x				<3.9.2	☑