What's new in Weka 3.7.12

GUIChooser now has a plugin exension point that allows implementations of GUIChooser.GUIChooserMenuPlugin to appear as entries in either the Tools or Visualization menus
SubsetByExpression filter now has support for regexp matching
weka.classifiers.IterativeClassifierOptimizer - a classifier that can efficiently optimize the number of iterations for a base classifier that implements IterativeClassifier
Speedup for LogitBoost in the two class case
weka.filters.supervised.instance.ClassBalancer - a simple filter to balance the weight of classes
New class hierarchy for stopwords algorithms. Includes new methods to read custom stopwords from a file and apply multiple stopwords algorithms
Ability to turn off capabilities checking in Weka algorithms. Improves runtime for ensemble methods that create a lot of simple base classifiers
Memory savings in weka.core.Attribute
Improvements in runtime for SimpleKMeans and EM
weka.estimators.UnivariateMixtureEstimator - new mixture estimator

New discriminantAnalysis package. Provides an implementation of Fisher's linear discriminant analysis
Quartile estimators, correlation matrix heat map and k-means++ clustering in distributed Weka
Support for default settings for GridSearch via a properties file
Improvements in scripting with addition of the offical Groovy console (kfGroovy package) from the Groovy project and TigerJython (new tigerjython package) as the Jython console via the GUIChooser
Support for the latest version of MLR in the RPlugin package
EAR4 package contributed by Vahid Jalali
StudentFilters package contributed by Chris Gearhart
graphgram package contributed by Johannes Schneider