Achim, The upcoming release of Biber requires Unicode-Normalize-1.26, but we currently have 1.25. I know this module is now bundled with perl. Would it be difficult for you to update it? Thanks. Ken BKCB؛[H\ܝΈY[K؛[\˚[BTNY[K٘\KB[][ێY[K˚[B[XܚXH[ΈY[K[ [XܚXK\[\CBB