See http://gretl.sourceforge.net/ 2021-05-04 version 2021b - New function trigamma(): second derivative of lngamma - New function midasmult(): gives MIDAS multipliers - New command "bds": BDS nonlinearity test - gdtb data format: make the new fast variant the default - tighten up on defbundle() syntax: no empty arguments allowed - array definition: enforce the specific choice of type - "wls" command, with 0/1 weights: compute $yhat and $uhat for the excluded observations - "dpanel" estimation via the GUI: make the --dpdstyle flag configurable - "dpanel" --verbose switch: provide some information on the instruments used - "adf" command: support more accurate inference with improved p-values or critical values, for the GLS case in particular - "xtab" command: clarify that the $result (matrix) accessor is just for the bivariate case - "clear" command: add --functions option to remove all hansl functions from memory - "restrict" command: add "inject" keyword to support use of an array of strings to specify restrictions - "param_names" keyword for nls, mle, gmm: accept an array of strings as argument - binary probit and logit: offer Estrella's pseudo R-squared as an alternative to McFadden, via --estrella option - The functions mean, sum, sd, var, wmean, wsd and wvar now accept an optional boolean argument; specific to the cross-sectional statistics produced when list arguments are given, this allows skipping of missing values. - hdprod(): introduce "shorthand" syntax (one argument only) - dbnomics addon: speed up retrieval of data - user-defined functions: allow overloading of numeric arguments and return value (scalar, series or matrix) - user-defined function parameters: enforce the "const" flag more consistently - gretl timer ("stopwatch"): provide a separate timer for each level of function execution - GUI usage of geoplot addon: make it easier to save an edited map as GeoJSON - GUI model specification dialog: enable interactive search in lists of series - GUI, saving contents of bundles: enable saving of integer members - GUI, handle dependencies when installing function packages - GUI script editor: improve implementation of "smart tab" - Fix bug: breakage in computing out-of-sample forecasts from VECMs - Fix bug: possible crash when displaying a matrix with very long column names in the GUI program - Fix bug: broken covariance matrix from mols() with a large number of regressors - Fix bug: crash on applying postfix "++" to a submatrix - macOS: first release for arm64 -- Allin Cottrell Department of Economics Wake Forest University