Release following the update of vinecopulib to 0.5.5, see
https://github.com/vinecopulib/vinecopulib/releases. The most
relevant changes are summarized below.

BUG FIXES

• fix little bug in copula selection based on mBIC

• stabilize BB7 copula pdf

• fix threshold selection for (near-)independent data

• fix vine copula selection for 1-dimensional models with discrete variables

• fix user-visible variable types

Version 0.5.4 following the release of vinecopulib 0.5.4.