To ensure you are getting a secure and official version, use the following primary sources:

Weka 3.8 is the current stable version of the world-renowned open-source machine learning software. Developed by the University of Waikato in New Zealand, it provides a comprehensive suite of data mining tools for preprocessing, classification, regression, clustering, and association rule mining.

: Reliable sites like Softonic and FileHippo also host mirrors of the software. Installation Guide by Platform

: You can browse specific releases and download the latest Weka 3.8 files directly from the project's repository.

Weka is written in Java, meaning it can run on any platform that supports a Java Runtime Environment (JRE).

: The University of Waikato's Weka page is the central hub for all versions.