diff --git a/.env b/.env
index 7064edd..9b76ef7 100644
--- a/.env
+++ b/.env
@@ -29,7 +29,7 @@ MONGO_DB_PORT=27017
 MONGO_DB_VERSION=4.4
 
 # IoT Agent Ultralight Variables
-ULTRALIGHT_VERSION=3.4.0-distroless
+ULTRALIGHT_VERSION=3.3.0-distroless
 IOTA_NORTH_PORT=4041
 IOTA_SOUTH_PORT=7896
 
diff --git a/NGSI-LD Temporal Functions.postman_collection.json b/NGSI-LD Temporal Functions.postman_collection.json
index 8ae3e06..0a22483 100644
--- a/NGSI-LD Temporal Functions.postman_collection.json	
+++ b/NGSI-LD Temporal Functions.postman_collection.json	
@@ -1,8 +1,10 @@
 {
 	"info": {
-		"_postman_id": "d884c338-6244-4305-a96a-7dd5543dc909",
+		"_postman_id": "0246cd2b-6d78-47c3-a320-94c224031884",
 		"name": "NGSI-LD Temporal Functions",
-		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
+		"_exporter_id": "513743",
+		"_collection_link": "https://www.postman.com/fiware/workspace/fiware-foundation-ev-s-public-workspace/collection/513743-0246cd2b-6d78-47c3-a320-94c224031884?action=share&source=collection_link&creator=513743"
 	},
 	"item": [
 		{
@@ -195,7 +197,7 @@
 						"header": [
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
+								"value": "<http://context/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							},
 							{
@@ -262,7 +264,7 @@
 							},
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
+								"value": "<http://context/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							},
 							{
@@ -343,7 +345,7 @@
 							},
 							{
 								"key": "Link",
-								"value": "<http://context/alternate-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
+								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							}
 						],
@@ -381,7 +383,7 @@
 							},
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
+								"value": "<https://raw.githubusercontent.com/FIWARE/tutorials.NGSI-LD/master/app/public/data-models/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							}
 						],
@@ -414,46 +416,7 @@
 							},
 							{
 								"key": "Link",
-								"value": "<http://context/alternate-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
-								"type": "text"
-							}
-						],
-						"url": {
-							"raw": "http://localhost:1026/ngsi-ld/v1/entities/urn:ngsi-ld:Animal:cow005?options=keyValues",
-							"protocol": "http",
-							"host": [
-								"localhost"
-							],
-							"port": "1026",
-							"path": [
-								"ngsi-ld",
-								"v1",
-								"entities",
-								"urn:ngsi-ld:Animal:cow005"
-							],
-							"query": [
-								{
-									"key": "options",
-									"value": "keyValues"
-								}
-							]
-						}
-					},
-					"response": []
-				},
-				{
-					"name": "KeyValues of an entity Copy",
-					"request": {
-						"method": "GET",
-						"header": [
-							{
-								"key": "NGSILD-Tenant",
-								"value": "openiot",
-								"type": "text"
-							},
-							{
-								"key": "Link",
-								"value": "<http://context/alternate-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
+								"value": "<https://raw.githubusercontent.com/FIWARE/tutorials.NGSI-LD/master/app/public/data-models/alternate-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							}
 						],
@@ -487,7 +450,7 @@
 						"header": [
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
+								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json\"",
 								"type": "text"
 							},
 							{
@@ -569,7 +532,7 @@
 						"header": [
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
+								"value": "<https://raw.githubusercontent.com/FIWARE/tutorials.NGSI-LD/master/app/public/data-models/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
 								"type": "text"
 							},
 							{
@@ -649,7 +612,7 @@
 						"header": [
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
+								"value": "<https://raw.githubusercontent.com/FIWARE/tutorials.NGSI-LD/master/app/public/data-models/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
 								"type": "text"
 							},
 							{
@@ -729,7 +692,7 @@
 						"header": [
 							{
 								"key": "Link",
-								"value": "<http://context/user-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
+								"value": "<http://context/ngsi-context.jsonld>; rel=\"http://www.w3.org/ns/json-ld#context\"; type=\"application/ld+json",
 								"type": "text"
 							},
 							{