XLSTAT: 2026 Release Notes

XLSTAT 2026 adds macOS one-click install, paired z-tests, batch z-testing, custom CATA plot axes, Network License Server improvements, better contour/box plots, in-app update alerts, and a modernized calculation engine.

Oct 8, 2026
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XLSTAT 2026.1.4: October 8, 2026

Feature	Description	Benefit
macOS 27 Installation	The macOS installer no longer runs an obsolete SSE4.2 processor check that blocked installation on Apple silicon Macs and macOS 27.	Lets you install XLSTAT on the latest Macs and macOS version.
In-App Update Notifications	Notifications of new XLSTAT versions are displayed again within the application, on both Windows and macOS.	Keeps you informed of the latest versions without checking the website manually.
Repeated Measures ANOVA	F-test p-values now use the correct denominator degrees of freedom, and Mauchly’s sphericity test now returns correct results.	Ensures accurate significance conclusions and the right choice of sphericity correction.
Factor Analysis	Enabling the Kaiser-Meyer-Olkin option no longer replaces the covariance matrix with the Pearson correlation matrix.	Guarantees the analysis runs on the matrix you selected.
XLSTAT-Sim	Cp and Pp capability indices in Monte Carlo simulation SPC results are now computed correctly.	Delivers reliable process capability assessment from simulation outputs.
ANOVA Charts	The error "Method 'Item' of object 'LegendEntries' failed" no longer appears when generating ANOVA charts.	Lets you complete your ANOVA without interruption.
Extreme Gradient Boosting	The tool now runs correctly with a standard license.	Gives standard license users full access to the feature.

XLSTAT 2026.1.1: June 17, 2026

Feature	Description	Benefit
Seamless Installation on macOS	The redesigned XLSTAT macOS installer now deploys add-in files system-wide, so Microsoft Excel automatically detects and loads XLSTAT.	Enables a one-click install experience.
Sample Z-test for Paired Proportions	XLSTAT’s z-test for two proportions now supports paired data, enabling comparison of two proportions measured on the same subjects. This is ideal for before/after, longitudinal, and repeated-measures studies.	Eliminates manual workarounds and the risk of applying an incorrect method.
Multiple Z-tests on Paired Proportions	This feature allows you to select multiple rows of data and run a batch of z-tests in a single execution, consolidating all results in one summary table.	Turns hours of repetitive manual work into seconds, enabling you to focus on interpretation rather than execution.
CATA Data Analysis: Custom Axis Selection	Check-All-That-Apply (CATA) data analysis now supports custom axis selection on the Principal Coordinates Plot. Ideal for sensory and consumer research, providing you with flexibility to explore the full dimensional structure of your data.	Supports visualization of any pair of factors (F1, F2, F3, F4, …) instead of the default F1/F2.
New Network License Server 2.5	The new license server delivers enhanced security and a more administrator-friendly interface.	Enables faster, simpler, and more secure setup and maintenance of network licensing.

XLSTAT 2026.1: March 30, 2026

Feature	Description	Benefit
Contour Plot	Improved axis range handling, leading to clearer and more accurate contour representations.	Improves clarity and analytical accuracy.
Box Plot	Enhanced support for multi category box plots, delivering more readable and insightful graphics.	Improves ease of interpretation.
In‑App Update Notifications	You are automatically notified when a new version of XLSTAT is available. The notification appears within the application interface and is supported on both Windows and macOS.	Keeps you informed of the latest versions, helping you maintain an application that is current, secure, and compliant.
Calculation Modernization	This evolution provides a more modern, reliable, and high-performance foundation for XLSTAT’s statistical features, ensuring faster and smoother analyses.	Enables greater stability and reliability in everyday use.

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XLSTAT: 2026 Release Notes

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