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What's New in RapidMiner Studio 7.4.0?

The following describes the enhancements and bug fixes in RapidMiner Studio 7.4.0:

Processes can now be executed in the background of Studio while you work on a different process in the user interface. This feature is only available for users with a Large license.
New parallelized Loop operator.
New parallelized Loop Values operator.
New parallelized Loop Attributes operator.
New parallelized Loop Files operator.
Repository entries can now be sorted by date.
Users with Large licenses can now grant additional permissions to unsigned extensions.

Added a few new templates which can be used as a starting point when creating a new process.
Improved performance of Polynominal Regression.
Improved performance of Linear Regression.
Improved error message in case a selected input attribute for an operator is of the wrong type.
Improved operator progress for Generate Massive Data and several segmentation operators.
Improved performance of LibSVM and Fast Large Margin when sparse input data is not in sparse data format.
Small performance improvements for several operators that read parameters unnecessarily often.
Performance improvement for operators that iterate over all attributes.
Optimize by Generation (Evolutionary Aggregation) no longer shows unnecessary popup.
Repository entry sorting by name now ignores capitalization.
Users with Large licenses can now grant additional permissions to unsigned extensions via a new setting in the Start-up tab in the preferences.
The Log table in the results panel now also uses the new UI look and feel.

Fixed useless cipher error when starting Studio for the very first time.
Fixed swapped title in models of Linear Discriminant Analysis and Quadratic Discriminant Analysis.
Fixed side-effects of application of preprocessing models in other branches of the process.
Fixed side-effects of Impute Missing Values in other branches of the process.
Fixed wrong behavior when dismissing confirmation dialog asking for interruption of currently running process.
Fixed Delete File not being able to handle relative paths.
Meta data calculation of Generate Nominal Data can no longer cause freezing.
Optimize by Generation (Evolutionary Aggregation) no longer does one iteration too much.
Fixed Number of threads setting having no effect for Decision Tree and Random Forest if it was set to 1 and then increased again.
Fixed rare error that could occur when displaying a grouped model in the results view.

Added a temporary API for operators which should run in a parallelized fashion. Use the com.rapidminer.studio.concurrency.internal.ConcurrencyExecutionServiceProvider to access it.

The existing Read SAS operator has been deprecated. There is a new SAS connector extension available on the Marketplace which provides an up-to-date replacement of the operator.
Removed the compatibility level 7.1.1 of the operators Normalize, Replace Missing Values, Replace Infinite Values, Add Noise. These operators will no longer affect other branches of the progress even for processes created with compatibility level 7.1.0 or below.