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 # Links
 
+- [Switch Expressions](https://docs.oracle.com/en/java/javase/21/language/switch-expressions.html) Documentación Oficial
+- [Record Classes](https://docs.oracle.com/en/java/javase/21/language/records.html) Documentación Oficial
+- [Sealed Classes](https://docs.oracle.com/en/java/javase/21/language/sealed-classes-and-interfaces.html) Documentación Oficial
+- [Pattern Matching](https://docs.oracle.com/en/java/javase/21/language/pattern-matching.html) Documentación Oficial
+- [Unnamed variables and patterns](https://docs.oracle.com/en/java/javase/22/language/unnamed-variables-and-patterns.html) Documentación Oficial
 - [Data Oriented Programmig](https://www.infoq.com/articles/data-oriented-programming-java/) Brian Goetz
 - [Why ADTs are important?](https://www.youtube.com/watch?v=LkqTLJK2API) Bartosz Milewski
 - [Java 23: Restoring the Balance with Primitive Patterns](https://nipafx.dev/inside-java-newscast-66/) Nicolai Parlog