Changes in version 0.12.0 (2026-08-31)                 

New features

  - cec() now accepts an optional weights argument: a numeric vector of
    non-negative values, one per observation. Cluster means,
    covariances, and the returned $probability field are all
    weight-aware. When weights = NULL (default), behaviour is identical
    to previous versions.

Breaking changes

  - When weights is non-uniform, $probability now reports the weighted
    mixing proportion W_k / W_total rather than the observation-count
    fraction n_k / m.
  - When weights is non-uniform, card.min is now interpreted as a
    minimum weight sum rather than a minimum observation count.

Minor improvements and fixes

  - Fixed a crash with non-uniform weights: a cluster with fewer
    observations than dimensions could pass the weight-sum-based
    card.min check and produce a singular covariance. Cluster removal
    now also enforces a minimum observation count.
  - Fixed a crash in cec(..., keep.removed = TRUE) whenever a cluster
    was actually removed during clustering (Error in matrix(NA, 1,
    ncol(center)) : non-numeric matrix extent).
  - plot.cec() now warns and skips a single cluster's covariance ellipse
    if it cannot be drawn (e.g. a degenerate covariance), instead of
    failing the whole plot. Previously the surrounding tryCatch had no
    error handler and so provided no protection.
  - Error messages for internal clustering failures now include the
    underlying cause instead of a generic message.
  - Fixed a C++20 compiler warning (ambiguous reversed comparison
    operators) flagged by CRAN's macOS checks.

                 Changes in version 0.11.3 (2026-02-04)                 

New features

  - N/A.

Minor improvements and fixes

  - Fixing typo in Makevars.

                 Changes in version 0.11.2 (2024-10-10)                 

New features

  - N/A.

Minor improvements and fixes

  - Fixing CRAN NO_REMAP error with R > 4.5.0.

                 Changes in version 0.11.1 (2024-01-08)                 

New features

  - N/A.

Minor improvements and fixes

  - Fixing new CRAN check errors.

                 Changes in version 0.11.0 (2022-12-13)                 

New features

  - New maintainer.
  - New logo.

Minor improvements and fixes

  - Refactoring/reorganizing R code for easier maintenance.
  - Improving of documentation.
  - Moving to GitHub actions for CI instead of Travis.

                 Changes in version 0.10.3 (2021-09-21)                 

New features

  - N/A.

Minor improvements and fixes

  - Fixing gcc-11 issues.
  - Fixing other CRAN issues.

                 Changes in version 0.10.2 (2018-07-26)                 

New features

  - Adding fixed mean model.
  - Adding data set: threeGaussians.

Minor improvements and fixes

  - Fixing compilation issues on some platforms.

                 Changes in version 0.10.1 (2018-07-09)                 

New features

  - Rewriting all C the code in C++11.
  - Adding split method.
  - Adding threads.

Minor improvements and fixes

  - N/A.

                 Changes in version 0.9.4 (2016-04-24)                  

New features

  - N/A.

Minor improvements and fixes

  - Adding README.md.
  - Lots of refactoring.
  - Small fixes.

                 Changes in version 0.9.3 (2015-02-03)                  

New features

  - Changing the way initial centers vector is handled: for each start,
    length(centers) clusterings are performed.
  - Adding two datasets: fourGaussians and mixShapes.

Minor improvements and fixes

  - Giving up support of -1 iterations (fixing memcheck problems).

                 Changes in version 0.9.2 (2014-11-15)                  

New features

  - N/A

Minor improvements and fixes

  - Checking input data for NA values (session crushing).
  - Changing 'ZERO_EPSILON' to '1.0e-32'.
  - Lots of refactoring.

                 Changes in version 0.9.1 (2014-10-09)                  

Initial Release.