diff --git a/README.md b/README.md
index 24a2fbd..8212e1a 100644
--- a/README.md
+++ b/README.md
@@ -937,7 +937,7 @@ Il [business canvas](https://docs.google.com/spreadsheets/d/1-H3R9vLX_Y3_7NxGN1I
 * [Normativa e modelli relativi al Diploma Supplement](https://www.miur.gov.it/-/nuovo-supplemento-al-diploma-con-4-allegati-relativi-alla-compilazione-e-alle-linee-guida-nazionali-per-la-digitalizzazione)
 ## Ultima Modifica 🔬
 
-11/06/2024
+11/07/2024
 
 ## Authors 🚶
 
diff --git a/doc/03_analysis/io_schema/IFS02.1-request.json b/doc/03_analysis/io_schema/IFS02.1-request.json
index ac98495..e85f347 100644
--- a/doc/03_analysis/io_schema/IFS02.1-request.json
+++ b/doc/03_analysis/io_schema/IFS02.1-request.json
@@ -1,4 +1,3 @@
-/* Il person_id è prioritario rispetto al tax_code*/
 
 /*ESEMPIO 1*/
 {
diff --git a/doc/03_analysis/io_schema/IFS02.2-request.json b/doc/03_analysis/io_schema/IFS02.2-request.json
index 72c8170..e877907 100644
--- a/doc/03_analysis/io_schema/IFS02.2-request.json
+++ b/doc/03_analysis/io_schema/IFS02.2-request.json
@@ -1,5 +1,4 @@
 /*ESEMPIO 1*/
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS02.3-request.json b/doc/03_analysis/io_schema/IFS02.3-request.json
index 5646bc0..6916263 100644
--- a/doc/03_analysis/io_schema/IFS02.3-request.json
+++ b/doc/03_analysis/io_schema/IFS02.3-request.json
@@ -1,5 +1,4 @@
 /*ESEMPIO 1*/
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS02.4-request.json b/doc/03_analysis/io_schema/IFS02.4-request.json
index 0ec23d9..38a976b 100644
--- a/doc/03_analysis/io_schema/IFS02.4-request.json
+++ b/doc/03_analysis/io_schema/IFS02.4-request.json
@@ -1,5 +1,4 @@
 /*ESEMPIO 1*/
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS02.5-request.json b/doc/03_analysis/io_schema/IFS02.5-request.json
index a1f6365..38ccf02 100644
--- a/doc/03_analysis/io_schema/IFS02.5-request.json
+++ b/doc/03_analysis/io_schema/IFS02.5-request.json
@@ -1,5 +1,4 @@
 /*ESEMPIO 1*/
-/* Il person_id è prioritario rispetto al tax_code*/
 {
     "tax_code": "RSSMRA80A01F205D",
     "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS03.1-request.json b/doc/03_analysis/io_schema/IFS03.1-request.json
index 55c8b51..0a4f930 100644
--- a/doc/03_analysis/io_schema/IFS03.1-request.json
+++ b/doc/03_analysis/io_schema/IFS03.1-request.json
@@ -1,5 +1,5 @@
 
-/* ESEMPIO 1 Il person_id è prioritario rispetto al tax_code*/
+/* ESEMPIO 1*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS03.2-request.json b/doc/03_analysis/io_schema/IFS03.2-request.json
index 0c5e16a..91e18d0 100644
--- a/doc/03_analysis/io_schema/IFS03.2-request.json
+++ b/doc/03_analysis/io_schema/IFS03.2-request.json
@@ -1,4 +1,3 @@
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS03.3-request.json b/doc/03_analysis/io_schema/IFS03.3-request.json
index 0c5e16a..91e18d0 100644
--- a/doc/03_analysis/io_schema/IFS03.3-request.json
+++ b/doc/03_analysis/io_schema/IFS03.3-request.json
@@ -1,4 +1,3 @@
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/doc/03_analysis/io_schema/IFS03.4-request.json b/doc/03_analysis/io_schema/IFS03.4-request.json
index 0c5e16a..91e18d0 100644
--- a/doc/03_analysis/io_schema/IFS03.4-request.json
+++ b/doc/03_analysis/io_schema/IFS03.4-request.json
@@ -1,4 +1,3 @@
-/* Il person_id è prioritario rispetto al tax_code*/
 {
   "tax_code": "RSSMRA80A01F205D",
   "person_id": "12345678A"
diff --git a/release-note.md b/release-note.md
index 4afb9cd..25f4509 100644
--- a/release-note.md
+++ b/release-note.md
@@ -4,6 +4,7 @@
 - [GUIDE] updated the readme.md file with the new e-services' names and uploaded the guide for publishing the e-services
 - [IFS04.1, IFS05.1] The field 'degree_course_code' has been added to the request to specify the enrollment or qualification referenced by the change request
 - [IFS04.4, IFS05.4] Fix swagger
+- [IFS02] Removed the required property for the degree_class_code attribute in the proof_enrollment object
 
 ## Version 2.0.5
 
diff --git a/src/IFS02-iscrizioni.yaml b/src/IFS02-iscrizioni.yaml
index b943aa4..47ba7f0 100644
--- a/src/IFS02-iscrizioni.yaml
+++ b/src/IFS02-iscrizioni.yaml
@@ -584,7 +584,6 @@ components:
         - country_of_academic_institution
         - institute_name
         - institute_code
-        - degree_class_code
         - degree_course_name
         - degree_course_code
         - programme_type_name