diff --git a/README.md b/README.md
index 63b1d4a..d520a85 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,14 @@ To generate the icon and splash screen files for all platforms and dimensions. F
 
 ## Building
 
+### How to change app version before building for release
+
+The app has several places where the app version is defined. Change the following:
+
+1. In the `config.xml` file, change the `android-versionCode` parameter, as well as the `version` (`widget` tag).
+2. Change the `version` in `package.json` file.
+3. Change the `APP_VERSION` constant, defined in `src/consts.ts` file.
+
 ### Building for Android
 
 #### Java - Gradle
diff --git a/config.xml b/config.xml
index 97253f9..1174332 100644
--- a/config.xml
+++ b/config.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget android-versionCode="102159" id="org.scify.dianoia.app" version="2.4.1" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget android-versionCode="102160" id="org.scify.dianoia.app" version="2.4.2" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <name>diAnoia</name>
     <description>Non-pharmaceutical activities for people with dementia.</description>
     <author email="info@scify.org" href="https://www.scify.gr/site/en/">SciFY Team</author>
diff --git a/package.json b/package.json
index ea7c429..2a30f11 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "dianoia",
-    "version": "2.4.1",
+    "version": "2.4.2",
     "author": "SciFY",
     "homepage": "https://dianoia-app.scify.org/",
     "private": true,
@@ -119,4 +119,4 @@
             "android"
         ]
     }
-}
\ No newline at end of file
+}
diff --git a/src/assets/data_DB/en/activities/activities.json b/src/assets/data_DB/en/activities/activities.json
index d71c518..369095d 100644
--- a/src/assets/data_DB/en/activities/activities.json
+++ b/src/assets/data_DB/en/activities/activities.json
@@ -311,7 +311,6 @@
     "instructions":[],
     "link": "https://drive.google.com/file/d/1Rnzw2BQ7ZTx0HXIeAkwUEWuSj5YIdQk3/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia17",
     "category": "stories"
   },
   {
@@ -360,7 +359,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1o724XjhRtsy7wOpsC9y8Y6tcHr5oAIkB/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia20",
     "category": "stories"
   },
   {
@@ -373,7 +371,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1wEm1FCiLHPHrj8Oc4IwMuX2PFiSQ1jqF/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia22",
     "category": "stories"
   },
   {
diff --git a/src/assets/data_DB/es/activities/activities.json b/src/assets/data_DB/es/activities/activities.json
index b22a1a4..ecc3c0e 100644
--- a/src/assets/data_DB/es/activities/activities.json
+++ b/src/assets/data_DB/es/activities/activities.json
@@ -311,7 +311,6 @@
     "instructions":[],
     "link": "https://drive.google.com/file/d/1S74w9tzC-i9kwE3tLmRY9yb4XmXPKS_z/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia17",
     "category": "stories"
   },
   {
@@ -360,7 +359,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1baFCOesN6FBZ7ETR0tbRvWSftupGCj0R/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia20",
     "category": "stories"
   },
   {
@@ -373,7 +371,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1Gm4Oj9-sy39F1TuqsxOkqMcJ6COfZPrZ/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia22",
     "category": "stories"
   },
   {
diff --git a/src/assets/data_DB/it/activities/activities.json b/src/assets/data_DB/it/activities/activities.json
index d28067c..2c57ae1 100644
--- a/src/assets/data_DB/it/activities/activities.json
+++ b/src/assets/data_DB/it/activities/activities.json
@@ -311,7 +311,6 @@
     "instructions":[],
     "link": "https://drive.google.com/file/d/1m9IUZLUW8UmY8TZFd8yMa8QEe7fpxkjn/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia17",
     "category": "stories"
   },
   {
@@ -360,7 +359,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1rp2V8grSeyG5swRvCR6fGZCOND-2XKx3/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia20",
     "category": "stories"
   },
   {
@@ -373,7 +371,6 @@
     "instructions": [],
     "link": "https://drive.google.com/file/d/1R8r_SZrg6mACRqVzK5NMlmcwqIE2Dk12/view?usp=sharing",
     "difficulty_level_id": "difficulty_level_1",
-    "help_link": "https://go.scify.gr/dianoia22",
     "category": "stories"
   },
   {
diff --git a/src/consts.ts b/src/consts.ts
index c9f917c..d2bb729 100644
--- a/src/consts.ts
+++ b/src/consts.ts
@@ -1,3 +1,3 @@
 export default class consts {
-  static APP_VERSION: string = '2.4.1';
+  static APP_VERSION: string = '2.4.2';
 }