Hi Hans,

The removal of typo-spa.lua breaks the format generation in mkiv:

loading         > ConTeXt Typesetting Macros / Wrapping
resolvers       > lua > loading file
'/usr/share/texmf/tex/context/base/mkiv/typo-wrp.lua' succeeded
close source    > level 1, order 226, name
'/usr/share/texmf/tex/context/base/mkiv/typo-wrp.mkiv'
open source     > level 1, order 227, name
'/usr/share/texmf/tex/context/base/mkiv/typo-spa.mkiv'
loading         > ConTeXt Typesetting Macros / Spacing
resolvers       > lua > unknown file 'typo-spa.lua'

error loading file: typo-spa.lua (aborting)resolvers       | formats |
resolvers       | formats | binary path      : /usr/bin
resolvers       | formats | format path      :
/home/reviczky/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/formats/luatex
resolvers       | formats | luatex engine    : luatex
resolvers       | formats | lua startup file :
/usr/share/texmf/tex/context/base/mkiv/luat-cod.lua
resolvers       | formats | context file     :
/usr/share/texmf/tex/context/base/mkiv/cont-en.mkiv
resolvers       | formats | run time         : 1.394 seconds
resolvers       | formats | return value     : okay
resolvers       | formats |
system          | total runtime: 3.790 seconds

Adding the file back creates the formats again.

mtx-context     | current version: 2020.12.04 20:19
This is LuaTeX, Version 1.13.0 (TeX Live 2021/dev/Debian)
Development id: 7387

Regards,
Adam