Add a note

Author: MattiasBuelens

gradle/libs.versions.toml

@@ -9,6 +9,7 @@ kotlinxSerializationJson = "1.11.0"
 dokka = "2.2.0"
 androidxAppCompat = "1.7.1"
 androidxActivity = "1.13.0"
+# NOTE: upgrading beyond 1.18.0 requires compileSdk 37
 androidxCore = "1.18.0"
 androidxComposeBom = "2026.06.00"
 # NOTE: upgrading beyond 2.5.1 requires targetSdk 33