Thats my bad, i made a mistake when releasing graphql-kotlin 8.3.0 -- that should've been a breaking change (ktor 3, kotlin 2), i was supposed to do a mayor release.
To avoid doing bunch of reverts, I decided to start with alpha releases for v9
this is the mapping i had to do in github
8.3.0 -> 9.0.0-alpha.1
8.4.0 -> 9.0.0-alpha.2
8.5.0 -> 9.0.0-alpha.3
8.6.0 is now the latest release from 8.x.x branch
and
9.0.0-alpha.4 is the latest release from master/main branch
apologizes for the miss understanding and the inconveniences