diff --git a/.gitignore b/.gitignore
index 202b5a8f1..e786210e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ test-db
 commands
 src/main/resources/configuration.properties
 .idea/
+.vscode
 *.iml
 opt/
 
diff --git a/edition-ldod/pom.xml b/edition-ldod/pom.xml
index 7ff72a6fb..ab77ff0df 100755
--- a/edition-ldod/pom.xml
+++ b/edition-ldod/pom.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
@@ -41,10 +40,6 @@
 
 	<build>
 		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-			</plugin>
 			<plugin>
 				<groupId>org.codehaus.gmavenplus</groupId>
 				<artifactId>gmavenplus-plugin</artifactId>
@@ -64,28 +59,28 @@
 		</plugins>
 	</build>
 
-	
+
 	<dependencies>
 		<!-- https://mvnrepository.com/artifact/org.twitter4j/twitter4j-core -->
 		<dependency>
-		    <groupId>org.twitter4j</groupId>
-		    <artifactId>twitter4j-core</artifactId>
-		    <version>4.0.7</version>
+			<groupId>org.twitter4j</groupId>
+			<artifactId>twitter4j-core</artifactId>
+			<version>4.0.7</version>
 		</dependency>
 
 		<!-- https://mvnrepository.com/artifact/org.json/json -->
 		<dependency>
-		    <groupId>org.json</groupId>
-		    <artifactId>json</artifactId>
-		    <version>20180813</version>
+			<groupId>org.json</groupId>
+			<artifactId>json</artifactId>
+			<version>20180813</version>
 		</dependency>
-	
+
 		<dependency>
-		    <groupId>com.googlecode.json-simple</groupId>
-		    <artifactId>json-simple</artifactId>
-		    <version>1.1.1</version>
+			<groupId>com.googlecode.json-simple</groupId>
+			<artifactId>json-simple</artifactId>
+			<version>1.1.1</version>
 		</dependency>
-		
+
 	</dependencies>
-	
+
 </project>
diff --git a/edition-ldod/src/main/java/pt/ist/socialsoftware/edition/ldod/controller/LdoDErrorController.java b/edition-ldod/src/main/java/pt/ist/socialsoftware/edition/ldod/controller/LdoDErrorController.java
index 5783cdadb..9ceb9e46a 100644
--- a/edition-ldod/src/main/java/pt/ist/socialsoftware/edition/ldod/controller/LdoDErrorController.java
+++ b/edition-ldod/src/main/java/pt/ist/socialsoftware/edition/ldod/controller/LdoDErrorController.java
@@ -18,7 +18,6 @@ public ModelAndView error() {
 		return modelAndView;
 	}
 
-	@Override
 	public String getErrorPath() {
 		return PATH;
 	}
diff --git a/edition-ldod/src/main/resources/application.properties b/edition-ldod/src/main/resources/application.properties
index f9b644d71..b1acec940 100644
--- a/edition-ldod/src/main/resources/application.properties
+++ b/edition-ldod/src/main/resources/application.properties
@@ -24,4 +24,9 @@ registration.confirmation.mail.smtp.host=smtp.gmail.com
 registration.confirmation.mail.smtp.port=587
 
 test.files.dir=src/test/resources/files/
-load.files.dir=src/main/resources/files/
\ No newline at end of file
+load.files.dir=src/main/resources/files/
+
+
+spring.main.allow-bean-definition-overriding=true
+server.servlet.register-default-servlet=true
+spring.main.allow-circular-references=true
diff --git a/edition-ldod/src/main/webapp/WEB-INF/jsp/common/meta-head.jsp b/edition-ldod/src/main/webapp/WEB-INF/jsp/common/meta-head.jsp
index 28e7f669b..475462736 100644
--- a/edition-ldod/src/main/webapp/WEB-INF/jsp/common/meta-head.jsp
+++ b/edition-ldod/src/main/webapp/WEB-INF/jsp/common/meta-head.jsp
@@ -1,85 +1,89 @@
 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>LdoD</title>
-<link rel="stylesheet" type="text/css" href="/resources/css/style.css" />
-<link rel="stylesheet" type="text/css" href="/resources/css/ldod.css" />
-<link rel="stylesheet" type="text/css"
-	href="/resources/css/font-awesome.min.css" />
-<link rel="stylesheet"
-	href="/webjars/bootstrap/3.3.7-1/css/bootstrap.min.css" />
-<script src="/webjars/jquery/1.11.3/jquery.min.js"></script>
-<script src="/webjars/bootstrap/3.3.7-1/js/bootstrap.min.js"></script>
-<!-- Global site tag (gtag.js) - Google Analytics -->
-<script async src="https://www.googletagmanager.com/gtag/js?id=UA-111295843-1"></script>
-<script>
-  window.dataLayer = window.dataLayer || [];
-  function gtag(){dataLayer.push(arguments);}
-  gtag('js', new Date());
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>LdoD</title>
+    <link rel="stylesheet" type="text/css" href="/resources/css/style.css" />
+    <link rel="stylesheet" type="text/css" href="/resources/css/ldod.css" />
+    <link rel="stylesheet" type="text/css" href="/resources/css/font-awesome.min.css" />
+    <link rel="stylesheet" href="/webjars/bootstrap/3.3.7-1/css/bootstrap.min.css" />
+    <script src="/webjars/jquery/3.6.0/jquery.min.js"></script>
+    <script src="/webjars/bootstrap/3.3.7-1/js/bootstrap.min.js"></script>
+    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=UA-111295843-1"></script>
+    <script>
+        window.dataLayer = window.dataLayer || [];
 
-  gtag('config', 'UA-111295843-1');
-</script>
-<style>
-@media ( max-width : 767px) {
-	.text-xs-left {
-		text-align: left;
-	}
-	.text-xs-right {
-		text-align: right;
-	}
-	.text-xs-center {
-		text-align: center;
-	}
-	.text-xs-justify {
-		text-align: justify;
-	}
-}
+        function gtag() {
+            dataLayer.push(arguments);
+        }
+        gtag('js', new Date());
 
-@media ( min-width : 768px) and (max-width: 991px) { /* sm */
-	.text-sm-left {
-		text-align: left;
-	}
-	.text-sm-right {
-		text-align: right;
-	}
-	.text-sm-center {
-		text-align: center;
-	}
-	.text-sm-justify {
-		text-align: justify;
-	}
-}
+        gtag('config', 'UA-111295843-1');
+    </script>
+    <style>
+        @media ( max-width: 767px) {
+            .text-xs-left {
+                text-align: left;
+            }
+            .text-xs-right {
+                text-align: right;
+            }
+            .text-xs-center {
+                text-align: center;
+            }
+            .text-xs-justify {
+                text-align: justify;
+            }
+        }
+        
+        @media ( min-width: 768px) and (max-width: 991px) {
+            /* sm */
+            .text-sm-left {
+                text-align: left;
+            }
+            .text-sm-right {
+                text-align: right;
+            }
+            .text-sm-center {
+                text-align: center;
+            }
+            .text-sm-justify {
+                text-align: justify;
+            }
+        }
+        
+        @media ( min-width: 992px) and (max-width: 1199px) {
+            /* md */
+            .text-md-left {
+                text-align: left;
+            }
+            .text-md-right {
+                text-align: right;
+            }
+            .text-md-center {
+                text-align: center;
+            }
+            .text-md-justify {
+                text-align: justify;
+            }
+        }
+        
+        @media ( min-width: 1200px) {
+            /* lg */
+            .text-lg-left {
+                text-align: left;
+            }
+            .text-lg-right {
+                text-align: right;
+            }
+            .text-lg-center {
+                text-align: center;
+            }
+            .text-lg-justify {
+                text-align: justify;
+            }
+        }
+    </style>
 
-@media ( min-width : 992px) and (max-width: 1199px) { /* md */
-	.text-md-left {
-		text-align: left;
-	}
-	.text-md-right {
-		text-align: right;
-	}
-	.text-md-center {
-		text-align: center;
-	}
-	.text-md-justify {
-		text-align: justify;
-	}
-}
 
-@media ( min-width : 1200px) { /* lg */
-	.text-lg-left {
-		text-align: left;
-	}
-	.text-lg-right {
-		text-align: right;
-	}
-	.text-lg-center {
-		text-align: center;
-	}
-	.text-lg-justify {
-		text-align: justify;
-	}
-}
-</style>
-
-
-<c:set var="contextPath" value="${pageContext.request.contextPath}" />
+    <c:set var="contextPath" value="${pageContext.request.contextPath}" />
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 95ac0c1e7..d54a7e61d 100755
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>pt.ist.socialsoftware</groupId>
@@ -12,7 +11,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.3.12.RELEASE</version>
+        <version>2.7.1</version>
     </parent>
 
     <name>edition</name>
@@ -41,7 +40,7 @@
         <io.jsonwebtoken.jjwt>0.9.0</io.jsonwebtoken.jjwt>
 
         <version.org.webjars.bootstrap>3.3.7-1</version.org.webjars.bootstrap>
-        <version.org.webjars.jquery>1.11.3</version.org.webjars.jquery>
+        <version.org.webjars.jquery>3.6.0</version.org.webjars.jquery>
 
         <version.javax.mail>1.6.2</version.javax.mail>
         <version.commons.lang.commons.lang>2.6</version.commons.lang.commons.lang>
@@ -57,7 +56,7 @@
         </fenix.framework.codeGeneratorClassName>
         <fenix.framework.backend>jvstm-ojb</fenix.framework.backend>
 
-        <version.jacoco.maven.plugin>0.8.6</version.jacoco.maven.plugin>
+        <version.jacoco.maven.plugin>0.8.8</version.jacoco.maven.plugin>
         <coverage.class.ratio>0.15</coverage.class.ratio>
         <coverage.instruction.ratio>0.15</coverage.instruction.ratio>
         <coverage.method.ratio>0.15</coverage.method.ratio>
@@ -94,14 +93,7 @@
                     <groupId>org.springframework.boot</groupId>
                     <artifactId>spring-boot-maven-plugin</artifactId>
                 </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-compiler-plugin</artifactId>
-                    <configuration>
-                        <source>8</source>
-                        <target>8</target>
-                    </configuration>
-                </plugin>
+
                 <!-- Compile -->
                 <plugin>
                     <!-- The gmavenplus plugin is used to compile Groovy code. To learn
@@ -375,7 +367,7 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-<!--            weird dependency but necessary to avoid Mockito cannot mock this class-->
+            <!--            weird dependency but necessary to avoid Mockito cannot mock this class-->
             <version>2.22.0</version>
             <scope>test</scope>
         </dependency>
@@ -387,25 +379,25 @@
             <version>${version.spock}</version>
             <scope>test</scope>
         </dependency>
-        <dependency> <!-- use a specific Groovy version rather than the one specified by spock-core -->
+        <dependency>            <!-- use a specific Groovy version rather than the one specified by spock-core -->
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
             <version>${version.groovy}</version>
         </dependency>
-        <dependency> <!-- enables mocking of classes (in addition to interfaces) -->
+        <dependency>            <!-- enables mocking of classes (in addition to interfaces) -->
             <groupId>net.bytebuddy</groupId>
             <artifactId>byte-buddy</artifactId>
             <version>${net.bytebuddy.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency> <!-- enables mocking of classes without default constructor (together with
+        <dependency>            <!-- enables mocking of classes without default constructor (together with
 				CGLIB) -->
             <groupId>org.objenesis</groupId>
             <artifactId>objenesis</artifactId>
             <version>${org.objenesis.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency> <!-- only required if Hamcrest matchers are used -->
+        <dependency>            <!-- only required if Hamcrest matchers are used -->
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
             <version>1.3</version>