[Gretl-announce] gretl 2020d released

Sorry for the abrupt turn-around, but we've made a new release to fix a nasty bug in the recent 2020c. 2020-08-06 version 2020d - Fix GUI bug: crash on copying data series to clipboard in formats other than plain text - "poisson" command: switch to using Newton-Raphson with analytical hessian; also use analytical hessian for "negbin", and add Wald chi-square tests for both - "cusum" command: add a --plot option - GUI console: protect from deletion when a command is being executed -- Allin Cottrell Department of Economics Wake Forest University