Thanks for the update.
Deployments that use R 4.4.2 are still getting this error more than one month after the release:
Error: Unhandled Exception: child_task=1486130880 child_task_status=error: Unhandled Exception: Unsupported R version 4.4.2 for operating system jammy.
Wondering what is blocking getting the latest R version onto Jammy?
Edit: I see this is reported elsewhere, e.g. my app work locally, but not on shinyapps.io? and Unsupported R version 4.4.2 / What to do?, and this was also an issue back when 4.3.3 was released, see Problem deploying: Error building image: Build exited with non-zero status: 127 on March 6, 2023