C4DtoA 220.127.116.11 is a bug fix release, that uses Arnold 18.104.22.168.
Autodesk Network Licensing in Arnold 6 requires new license files with an updated 2020 version. Please follow the instructions on this page to generate your license file. More info about Arnold 6 licensing can be found here.
c4dtoa#1714 Failed to read the newest available plugin online in R23
c4dtoa#1715 Crash when exporting animated objects to ASS procedural with replace enabled
c4dtoa#1718 Wrong normals with linear subdivision