Changes in version 1.6.1 (2025-11-14)                  

  - Created GitHub page and website.
  - Created introductory vignette.
  - Fortran routines updated and speeded up (~2x).
  - Manuals updated.
  - Added new function relax.islasso(), which allows fitting a relaxed
    islasso model by selecting variables to remain unpenalized.
    Variables can be specified either by name or by index, or
    automatically selected according to a significance level (alpha).
    This extension provides additional flexibility in post-selection
    inference.
  - Some bugs fixed.

                 Changes in version 1.6.0 (2025-07-31)                  

Performance & Refactoring

  - Core computational routines have been cleaned up, and some bugs have
    been fixed.
  - Legacy R routines have been revised, cleaned, and commented. Minor
    inconsistencies have been addressed.

Documentation

  - Help files and function manuals are now fully managed via roxygen2,
    with substantial updates to usage examples and descriptions.

Visualization

  - All plotting functions have been refactored to use the ggplot2
    framework for consistent and modern graphics.

User Experience

  - A custom ASCII startup banner has been added on package attach,
    providing a welcoming and informative message.

                 Changes in version 1.5.1 (2023-05-15)                  

  - Some bugs fixed.

                 Changes in version 1.5.0 (2023-05-08)                  

  - Some bugs fixed.
  - Other S3 methods implemented.

                 Changes in version 1.4.3 (2022-03-01)                  

  - Some bugs fixed.

                 Changes in version 1.4.2 (2021-12-06)                  

  - Some bugs for binomial family fixed.

                 Changes in version 1.4.1 (2021-11-16)                  

  - Some bugs fixed.

                 Changes in version 1.4.0 (2021-10-15)                  

  - New optimization algorithm for the 'islasso' method. The algorithm
    is now stable for all the implemented distributions.
  - In aic.islasso() function the available methods are "AIC", "BIC",
    "AICc", "eBIC", "GCV", "GIC".
  - New class of functions named islasso.path created. The main function
    islasso.path() builds the coefficient profile for a fixed sequence
    of lambda values.
  - New function GoF.islasso.path() extracts the optimal tuning
    parameter minimizing a fixed criterion. Available criteria are the
    same as in aic.islasso().
  - Some bugs fixed.

                 Changes in version 1.3.1 (2021-06-16)                  

  - Some bugs fixed.

                 Changes in version 1.3.0 (2021-05-24)                  

  - Vignette added to the package.
  - Some bugs fixed.

                        Changes in version 1.2.3                        

  - Some bugs fixed.

                 Changes in version 1.2.2 (2021-01-22)                  

  - Some bugs fixed.

                 Changes in version 1.2.1 (2021-01-21)                  

  - Some bugs fixed.

                 Changes in version 1.2.0 (2021-01-21)                  

  - New implementation of the estimating algorithm. Now islasso is much
    stabler and faster.
  - New function: general linear hypotheses for linear combinations of
    the regression coefficients, including confidence intervals.
  - Prediction function includes confidence intervals for the fitted
    values.
  - Step halving with Armijo's rule improved.
  - Convergence criterion improved.
  - Some bugs fixed.

                 Changes in version 1.1.0 (2019-06-25)                  

  - New implementation of the estimating algorithm. Now islasso is much
    stabler and faster, reducing the number of iterations to reach
    convergence.
  - Step halving with Armijo's rule implemented.
  - Elastic-net approach added via alpha parameter in the objective
    function (as in glmnet).
  - Summary method now includes degrees of freedom for each covariate,
    with choice between t-test or z-test (only for Gaussian family).
  - optim.islasso renamed to aic.islasso; interval specification no
    longer required.
  - islasso.control renamed to is.control; control parameters modified.
  - Two trace versions implemented in is.control: compact (trace = 1)
    and verbose (trace = 2).
  - Some bugs fixed.