2022-09-12

  Deleted debugging command \ifxetex\XeTeXtracingfonts=1\fi from *.sty files.
  
2019-02-27

  Added tnum feature to LinLibertine_RZI.otf.
  Added lnum feature to LinBiolinum_RB.otf and LinBiolinum_RBO.otf.
  Corrected onum substitution table in LinLibertine_RZI.otf and 
    corresponding latex support files.
  Revised libertine.sty accordingly.
