{"id":56100,"library":"cats-2-11","title":"Cats (Scala 2.11)","description":"Cats is a library for functional programming in Scala, providing abstractions like Functor, Monad, and Semigroup.","status":"active","version":"0.9.0","language":"java","source_language":null,"source_url":"https://github.com/typelevel/cats","tags":["cats","functional-programming","scala","typelevel"],"install":[{"cmd":"<dependency>\n  <groupId>org.typelevel</groupId>\n  <artifactId>cats_2.11</artifactId>\n  <version>0.9.0</version>\n</dependency>","lang":"xml","label":"Maven"},{"cmd":"implementation 'org.typelevel:cats_2.11:0.9.0'","lang":"groovy","label":"Gradle"}],"dependencies":[],"imports":[{"symbol":"implicits","correct":"cats.implicits._"}],"quickstart":{"code":"import cats.implicits._\n\nval result = List(1, 2, 3).map(_ + 1)\nprintln(result)","lang":"scala","description":"Minimal example showing how to use Cats implicits for basic functional operations."},"warnings":[{"fix":"Upgrade to Cats 2.x (org.typelevel:cats-core_2.13) for Scala 2.13 or later.","message":"Cats 0.9.0 is outdated and only supports Scala 2.11; modern Cats 2.x supports Scala 2.12, 2.13, and 3.","severity":"breaking","affected_versions":">=0.9.0"}],"env_vars":null,"search_vec":"'2.11':3 'abstract':14 'cat':1,4,20 'function':9,22 'functional-program':21 'functor':16 'librari':7 'like':15 'monad':17 'program':10,23 'provid':13 'scala':2,12,24 'semigroup':19 'typelevel':25","created_at":"2026-06-15T10:20:31.365410+00:00","updated_at":"2026-06-15T10:20:31.365410+00:00","problems":[],"ecosystem":"maven","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/typelevel/cats","github":"https://github.com/typelevel/cats","docs":"https://appdoc.app/artifact/org.typelevel/cats_2.11/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-15","next_check":"2026-12-12","install_tag":null}}