For sbt projects

Get the appropriate catboost_spark_version (see available versions at Maven central)

Choose the appropriate spark_compat_version (2.3, 2.4 or 3.0) and scala_compat_version (2.11 or 2.12).

Add dependency to build.sbt of your project:

libraryDependencies ++= Seq(
  "ai.catboost" %% ("catboost-spark_" + sparkCompatVersion) +  % "catboost_spark_version"
)