IntelliJ IDEA Ultimate is . Version 201833 requires a valid license (perpetual fallback license for 2018.3 or an active subscription). Do not use cracked builds; they are security hazards.
: It offered early support for Switch Expressions and Raw String Literals (though it later helped users migrate when JEP 326 was withdrawn from JDK 12). jetbrains intellij idea ultimate 201833 top