Changelog

Version 3.2.0

July 2, 2026

This release is focused around an overhaul of the means plot
feature.

Added

  • Means plots: Added the ability to display means as bars (in addition
    to points).
  • Means plots: Added bootstrap percentile error bars, with a
    configurable number of bootstraps.
  • Means plots: Added support for multiple grouping factors – split
    along the x-axis by a second factor, and into separate plots by a third
    factor.
  • Means plots: Added the ability to join means with a line across
    levels of either factor, coloured by the factor key.
  • Means plots: Added group colours driven by the factor key.
  • Means plots: Added customizable gaps between and within groups.
  • Means plots: Added separator lines between groups.
  • Means plots: Added the option to draw error bars on the outer side
    only (when displaying means as bars).
  • Means plots: Added separate vs. common (pooled) variance options for
    error bars.
  • Means plots: Added standard error and standard deviation values to
    the output worksheet when applicable.

Changed

  • Means plots: Changed plot and x-axis titles.
  • Means plots: Changed default settings.
  • Axis auto-orientation: Changed the way the ‘auto’ orientation of
    labels is done.

Fixed

  • Means plots: Made the means respect the factor key order.
  • Means plots: Fixed a bug in means plot multiplots.
  • Means plots: Fixed error messages in means plots.
  • Bootstrapping: Fixed bug when number of samples is 1.
  • ColourControls: Fixed bug so that ColourControls display differently
    when they are disabled.

Version 3.1.0

May 13, 2026

This is a maintenance release that adds support for new licence types and fixes a small bug in the in-app documentation.

Added

  • Licensing: Added support for new license types.

Fixed

  • Help Docs: Made links open in default browser instead of inside the help itself.

Version 3.0.0

February 11, 2026

PRIMER 8 is a major release with new analytical methods, a redesigned PERMANOVA workflow, new plot types, and improved data management tools.

For a full walkthrough of what’s changed, see What’s New in PRIMER 8.