Hans, Alan, I'm experiencing a regression with bibliographies in the latest beta (2018.12.01 13:20). I haven't been able to reduce it to a MWE yet, but here's what I get from my bibliographic files: compilation hangs with this message: close source > level 2, order 8, name '/mnt/shared/Documents/excerpts.tex' close source > level 1, order 8, name '/mnt/shared/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv' backend > info > no date/time but fake id information will be added ? ^\/mnt/shared/context/tex/texmf-linux-64/bin/context: line 2: 18125 When I hit enter, I get mtx-context | fatal error: return code: 1 but the produced pdf appears to be correct. The same file compiles fine with version 2018.10.02 23:17. I don't have any version in between. I'll see if I can produce a MWE, but I wanted to give you a heads up in advance. All best Thomas