diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8fa1804..1fb3019 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - 2024-06-04
+### Added
+ - API Rest per inserimento delle assenze
+
 ## [0.3.0] - 2024-04-09
 ### Added
  - Aggiunta gestione e visualizzazione data di nascita e residenza delle persone
diff --git a/VERSION b/VERSION
index 9325c3c..60a2d3e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.0
\ No newline at end of file
+0.4.0
\ No newline at end of file
diff --git a/src/main/java/it/cnr/iit/epas/config/OpenApiConfiguration.java b/src/main/java/it/cnr/iit/epas/config/OpenApiConfiguration.java
index 7f92d82..602fe44 100644
--- a/src/main/java/it/cnr/iit/epas/config/OpenApiConfiguration.java
+++ b/src/main/java/it/cnr/iit/epas/config/OpenApiConfiguration.java
@@ -36,7 +36,7 @@
 @Configuration
 @OpenAPIDefinition(
     info = @Info(title = "ePAS Service", 
-    version = "4.0.0-beta.1", 
+    version = "4.0.0-beta.2", 
     description = "ePAS Service contains all the business logic and related REST endpoints"
         + " to manage all the personnel information."),
     servers = {@Server(url = "/", description = "ePAS Service URL")}
diff --git a/src/main/java/it/cnr/iit/epas/dto/v4/ContractBaseDto.java b/src/main/java/it/cnr/iit/epas/dto/v4/ContractBaseDto.java
index b50915c..f639e2b 100644
--- a/src/main/java/it/cnr/iit/epas/dto/v4/ContractBaseDto.java
+++ b/src/main/java/it/cnr/iit/epas/dto/v4/ContractBaseDto.java
@@ -20,6 +20,7 @@
 import io.swagger.v3.oas.annotations.media.Schema;
 import java.time.LocalDate;
 import lombok.Data;
+import lombok.ToString;
 
 /**
  * DTO con i dati per la creazione di un nuovo contratto.
@@ -27,6 +28,7 @@
  * @author Cristian Lucchesi
  *
  */
+@ToString
 @Data
 public class ContractBaseDto {
 
diff --git a/src/main/java/it/cnr/iit/epas/dto/v4/ContractCreateDto.java b/src/main/java/it/cnr/iit/epas/dto/v4/ContractCreateDto.java
index a279854..26bd9bd 100644
--- a/src/main/java/it/cnr/iit/epas/dto/v4/ContractCreateDto.java
+++ b/src/main/java/it/cnr/iit/epas/dto/v4/ContractCreateDto.java
@@ -21,6 +21,7 @@
 import javax.validation.constraints.NotNull;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * DTO con i dati per la creazione di un nuovo contratto.
@@ -28,6 +29,7 @@
  * @author Cristian Lucchesi
  *
  */
+@ToString(callSuper = true)
 @Data
 @EqualsAndHashCode(callSuper = true)
 public class ContractCreateDto extends ContractBaseDto {
diff --git a/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowDto.java b/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowDto.java
index 54c2316..a6f2935 100644
--- a/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowDto.java
+++ b/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowDto.java
@@ -22,10 +22,12 @@
 import java.util.List;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * DTO con le info principali di un contratto.
  */
+@ToString(callSuper = true)
 @Data
 @EqualsAndHashCode(callSuper = true)
 public class ContractShowDto extends ContractShowTerseDto {
diff --git a/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowTerseDto.java b/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowTerseDto.java
index f7d8582..22f8f55 100644
--- a/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowTerseDto.java
+++ b/src/main/java/it/cnr/iit/epas/dto/v4/ContractShowTerseDto.java
@@ -20,6 +20,7 @@
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * DTO per le informazioni di base di un contratto.
@@ -27,6 +28,7 @@
  * @author Cristian Lucchesi
  *
  */
+@ToString
 @Data
 @EqualsAndHashCode(callSuper = true)
 public class ContractShowTerseDto extends ContractBaseDto {
diff --git a/src/main/java/it/cnr/iit/epas/dto/v4/ContractUpdateDto.java b/src/main/java/it/cnr/iit/epas/dto/v4/ContractUpdateDto.java
index e3c5a7e..56eabcc 100644
--- a/src/main/java/it/cnr/iit/epas/dto/v4/ContractUpdateDto.java
+++ b/src/main/java/it/cnr/iit/epas/dto/v4/ContractUpdateDto.java
@@ -21,6 +21,7 @@
 import javax.validation.constraints.NotNull;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Dto per contenere le informazioni di aggiornamento di un contratto.
@@ -28,6 +29,7 @@
  * @author Cristian Lucchesi
  *
  */
+@ToString(callSuper = true)
 @Data
 @EqualsAndHashCode(callSuper = true)
 public class ContractUpdateDto extends ContractBaseDto {