introduced --rootConfigName

You can now configure separately a different name for the tsconfig in the root directory. This is kinda a breaking change because --configName was used before also for the tsconfig in the root. In order to archive the same behaviour you would need to adjust the cmd-line from something like

npx update-ts-references --configName tsconfig.dev.json

to

npx update-ts-references --configName tsconfig.dev.json --rootConfigName tsconfig.dev.json