diff --git a/doc/example-clients/example-clients.md b/doc/example-clients/example-clients.md
new file mode 100644
index 0000000000000000000000000000000000000000..a6c58bfcd2029e0d87f1a921ab172e8919d1e9aa
--- /dev/null
+++ b/doc/example-clients/example-clients.md
@@ -0,0 +1,6 @@
+# Invoker and Provider CLI
+
+Check [Example Clients](https://labs.etsi.org/rep/ocf/example-clients) for further information.
+
+[OCF Web]: https://ocf.etsi.org/ "OCF Web"
+[OCF Documentation]: https://ocf.etsi.org/documentation/ "OCF Documentation"
diff --git a/doc/releasenotes.md b/doc/releasenotes.md
index b0a7aada77e9be8c1053d08b6088476eaac7637c..79859fb1e8a8f83682f2e54ad5641365af062769 100644
--- a/doc/releasenotes.md
+++ b/doc/releasenotes.md
@@ -2,42 +2,77 @@
 
 ### **New Features**
 
-#### 3GPP CAPIF release 18
+#### **Upgrade code to 3GPP CAPIF release 18**
 
 - New endpoints included in new release 18 with new logic.
-- New logic to support ***Vendor Extensibility*** on Publish Service.
-- New logic to support ***API Status*** feature on Publish and Events Services.
-- Supported Features now are mandatory for all POST and PUT Requests as is described on TS 29.222.
-    - **Possible Breaking change**, all POST request now must include supported features attribute, default can me set to "0" to keep all features inactive.
-    - **Possible Breaking change** on Events API, if you need eventDetails information on notification you must activate **Enhanced Event Report** feature by setting properly the supported features flag.
+- Supported Features now are mandatory for all POST and PUT Requests as is described on TS 29.222. To keep in mind:
+    - All POST/PUT request now must include ***Supported Features*** attribute, default can me set to ``0`` to keep all features inactive.
+    - On subscription to Event, if you need ***eventDetails*** information on notification you must activate ***Enhanced Event Report*** feature by setting properly the ***Supported Features*** flag.
+- Detailed information about models and endpoints upgrade on [Upgrade Release 17 to 18 Wiki]
+
+#### **Vendor Extensibility**
+
+- Publish API:
+    - On publishing a service API, **SupportedFeatures** is read and checked whether VendExt feature is enabled.
+    - When VendExt is enabled, vendor-specific fields are searched and stored in the db inside the ServiceAPIDescription object
+    - Vendor-specific fields are added according to the specific format:
+
+```json
+
+    "vendorSpecific-urn:<organization>:<field name>": {
+        "key1": "value1",
+        ...
+        "keyN": "valueN",
+    }
+  
+    e.g. 
+    "vendorSpecific-urn:etsi:mec:capifext:transport-info": {
+        "name": "trasport1",
+        "description": "Transport Info 1",
+        "type": "REST_HTTP",
+        "protocol": "HTTP",
+        "version": "2",
+        "security": {
+            "grantTypes": "OAUTH2_CLIENT_CREDENTIALS",
+            "tokenEndpoint": "https://token-endpoint/"
+        }
+    }
+  
+    where organization is "etsi:mec" and field name "capifext:transport-info"
+
+```
+
+- Discover API:
+    - On Discover request **SupportedFeatures** is read and checked whether VendSpecQueryParams feature is enabled.
+    - When VendSpecQueryParams is enabled, vendor-specific query parameters are parsed
+    - Vendor specific query parameters are added on the GET request according to the following format:
+
+```json
+    https://{{CAPIF_HOSTNAME}}:{{CAPIF_PORT}}/{{DISCOVER_URL}}?
+           ...
+           vend-spec-<query parameter name>={
+              "target": <string that contains the JSON pointer to the attribute in the resource representation>, 
+              "value": <query parameter value>
+    }
+  
+    e.g. 
+    https://{{CAPIF_HOSTNAME}}:{{CAPIF_PORT}}/{{DISCOVER_URL}}?
+           ...
+           vend-spec-type={
+              "target": "/vendorSpecific-urn:etsi:mec:capifext:transport-info", 
+              "value": "REST_HTTP"
+    }
+```
 
-### **Technical Debt Solved**
 
 #### **Api Status feature**
 
+- New logic to support ***API Status*** feature on Publish and Events Services.
 - Events API:
     - Event internal notifications between services improved to accomplish specification.
-    - On event subscription **SupportedFeatures** is readed and stored in db to accomplish specification.
+    - On event subscription **SupportedFeatures** is read and stored in db to accomplish specification.
     - Also **SupportedFeatures** is checked before send event notification, in order to accomplish specification, sending **eventDetails** and related information according to ***enhanced_event_report*** and ***apiStatusMonitoring*** supported features activated.
 
-#### **Issues**
-
-- Solved issue to get ready REDIS on deployment: REDIS scheduled on start to allow receive notification since service is deployed.
-- Solved problem removing service APIs published is provider register more than one APF.
-- Solved Superadmin problem deleting service API published through helper service if provider is not present.
-- Increased the overall stability, fixing some corner cases.
-- Location headers now are filled in same way at all services that needs it.
-- Security issues solved.
-- Base docker images present on ETSI registry.
-- Robot image uploaded to ETSI Registry.
-
-#### Local Scripts
-
-- All scripts were reviewed and improved.
-- New scripts to manage users on local deployment added:
-  - create_users.sh: helps developer to create new users in local deployment.
-  - remove_users.sh: helps developer to remove users from db in local deployment.
-
 #### Remote Scripts
 
 New scripts developed to help on remote deployment, configuration and testing. All this script are stored under helm/scripts in capif repository.
@@ -68,16 +103,55 @@ New scripts developed to help on remote deployment, configuration and testing. A
     - ***populate_create_remote_dummy_users.sh***: : Create Dummy providers and invokers, publish service APIs and creates security context for invokers.
     - ***populate_remove_remote_dummy_users.sh***: Remove dummy information created.
 
+### New Tools and Components
 
-### **Documentation**
+#### SDK
+
+New Python SDK is developed in order to simplify the creation and operation of providers and invokers. Please check the [SDK repository](https://labs.etsi.org/rep/ocf/sdk) for more information, there you can get more information about how to use it and also how to contibute to it.
 
-#### New test included on documentation
+#### Provider and Invoker example Clients
+
+In order to help developers to create their own invokers/providers entities and try the behavior of the OpenCAPIF, we also add to the OCF respository two example with console interaction at [example clients repository](https://labs.etsi.org/rep/ocf/example-clients):
+
+- [invoker-cli](https://labs.etsi.org/rep/ocf/example-clients/invoker-cli)
+- [provider-cli](https://labs.etsi.org/rep/ocf/example-clients/provider-cli)
+
+More information on README of each component.
+
+### **Testing**
 
 - New Vendor Extensibility test suite with 9 tests. [Api Events Service](./testing/testplan/vendor_extensibility/README.md)
-- New [API Status feature](./testing/testplan/api_status/README.md) test suite.
+- New [API Status feature](./testing/testplan/api_status/README.md) test suite with 20 tests.
 - Improved [Events test suite](./testing/testplan/api_events_service/README.md) with 8 new tests.
 - Test plan updated with default supported features for all request set to "0" (all inactive by default) [See common operations](./testing/testplan/common_operations/README.md).
 
+### **Technical Debt Solved**
+
+#### Local Scripts
+
+- All scripts were reviewed and improved.
+- New scripts to manage users on local deployment added:
+    - ***create_users.sh***: This script create users setup by parameters in local deployment.. Those users are created by administrator.
+    - ***remove_users.sh***: This script removes user in local deployment.
+
+#### **Issues**
+
+- Solved issue to get ready REDIS on deployment: REDIS scheduled on start to allow receive notification since service is deployed.
+- Solved problem removing service APIs published is provider register more than one APF.
+- Solved Superadmin problem deleting service API published through helper service if provider is not present.
+- Increased the overall stability, fixing some corner cases.
+- Location headers now are filled in same way at all services that needs it.
+- Security issues solved.
+- Base docker images present on ETSI registry.
+- Robot image uploaded to ETSI Registry.
+
+### **Documentation**
+
+- [Postman examples](./testing/postman/README.md) are updated, including flows.
+- New tests are detailed descripted on [Test plan section](./testing/testplan/README.md)
+- New [Contribute section](./contribute/).
+- New [SDK Section](./sdk/sdk.md)
+
 ---
 
 ## **Release 1.0.0**
@@ -262,4 +336,4 @@ This Release also includes a Robot Test Suite for all those services and a Postm
 [OCF Registration Flow]: https://ocf.etsi.org/documentation/latest/testing/testplan/common_operations/ "OCF Registration Flow"
 [New Registration Demo]: https://www.youtube.com/watch?v=sn-tN6eRvv8 "New Registration Demo"
 [CICD Wiki]: https://labs.etsi.org/rep/ocf/community/-/wikis/OCF-CICD "CI/CD Wiki"
-[Upgrade Release 17 to 18 Wiki]: https://labs.etsi.org/rep/ocf/community/-/wikis/?¿?¿?¿?¿?   "Upgrade Release 17 to 18 Wiki"
+[Upgrade Release 17 to 18 Wiki]: https://labs.etsi.org/rep/ocf/community/-/wikis/3GPP-Release-18-upgrade   "Upgrade Release 17 to 18 Wiki"
diff --git a/doc/sdk/sdk.md b/doc/sdk/sdk.md
new file mode 100644
index 0000000000000000000000000000000000000000..d50d9fd48e84d0f368cd8ed090b08f6451ba8be6
--- /dev/null
+++ b/doc/sdk/sdk.md
@@ -0,0 +1,6 @@
+# SDK
+
+Check [SDK repository](https://labs.etsi.org/rep/ocf/sdk) for further information.
+
+[OCF Web]: https://ocf.etsi.org/ "OCF Web"
+[OCF Documentation]: https://ocf.etsi.org/documentation/ "OCF Documentation"
diff --git a/mkdocs.yml b/mkdocs.yml
index d50bd14b68b5cc9fcd45f0913832355d8fa2c649..388e06db4c956011bc89444f6f8ef500401b96b4 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -78,6 +78,10 @@ nav:
       - Architecture: architecture.md
   - Getting Started:
       - How to Run: ./gettingstarted/howtorun.md
+  - SDK:
+      - Introduction: ./sdk/sdk.md
+  - Example Clients:
+      - Introduction: ./example-clients/example-clients.md
   - Testing:
       - Test Plan: ./testing/testplan/README.md
       - Robot Framework: ./testing/robotframework/README.md