Currently, The brownfield-gradle-plugin supports until AGP<=8. However, starting from AGP>=9, this plugin will stop working as there are deprecated APIs being used internally.

The goal of this milestone is to make the brownfield-gradle-plugin compatible with the AGP>=9. This involves migrating away from com.android.build.gradle.api.LibraryVariant to com.android.build.api.variant.LibraryVariant

RN as of 0.82.0 uses 8.12.0. The AGP 9 is in the alpha phase, so I am expecting we have some time until RN catches up with the AGP 9. However, sooner we plan it, the better.