diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a28a023..edcf97ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Table of Contents
 
+- [v0.4.0-rc.2](#v040-rc2)
 - [v0.4.0-rc.1](#v040-rc1)
 - [v0.4.0-alpha.1](#v040-alpha1)
 - [v0.3.0](#v030)
@@ -9,6 +10,32 @@
 - [v0.1.0 - Initial version](#v010---initial-version)
 
 
+# v0.4.0-rc.2
+
+**This is the second Release Candidate version for Commonalities release 0.4.0.**
+
+It contains the following corrections compared to [v0.4.0-rc.1](#v040-rc1).
+
+### Added
+* Error 422 UNIDENTIFIABLE_DEVICE added in API Design Guidelines and CAMARA_common.yaml by @rartych in https://github.com/camaraproject/Commonalities/pull/256
+
+### Changed
+* Errors in event-subscription-template.yaml aligned with CAMARA_common.yaml by @bigludo7 in https://github.com/camaraproject/Commonalities/pull/251
+* CAMARA_common.yaml - info object aligned with API Design Guidelines by @rartych in https://github.com/camaraproject/Commonalities/pull/257
+* API-DocumentationTemplate.md marked as deprecated by @rartych in https://github.com/camaraproject/Commonalities/pull/261
+* Updated event-subscription-template.yaml with attribute startsAt set optional, sinkCredential definition, and other corrections by @rartych in https://github.com/camaraproject/Commonalities/pull/267
+
+  
+### Fixed
+* API Design Guidelines - formatting corrected in section 11.6.1 by @rartych in https://github.com/camaraproject/Commonalities/pull/255
+* MNO abbreviation replaced in CAMARA_common.yaml by @rartych in https://github.com/camaraproject/Commonalities/pull/270
+
+### Removed
+* N/A
+
+**Full Changelog**: https://github.com/camaraproject/Commonalities/compare/r0.4.0-rc.1...r0.4.0-rc.2
+
+
 # v0.4.0-rc.1
 
 **This version introduces Event Subscription model based on [CloudEvents Subscriptions API draft](https://github.com/cloudevents/spec/blob/main/subscriptions/spec.md) and other changes to documents and artifacts approved since [v0.3.0](#v030).**
diff --git a/README.md b/README.md
index f40acc76..d37cac34 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,7 @@ The documents that are relevant for CAMARA API Sub Projects are found in the `do
 The `artifacts` directory contains:
 * templates for creating Github issues
 * common data and error formats for CAMARA APIs in [CAMARA_common.yaml](artifacts/CAMARA_common.yaml)
+* notification subscription template: [event-subscription-template.yaml](artifacts/camara-cloudevents/event-subscription-template.yaml)
 * OAS definition of CAMARA Event using CloudEvents: [notification-as-cloud-event.yaml](artifacts/notification-as-cloud-event.yaml)
 
 ### Frequently-accessed output documents
@@ -32,7 +33,6 @@ A list of some of the frequently accessed documents that are an output of the wo
 | Document name                                                                                                                             | Purpose                                                                                                                                                            |
 |-------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | [API-design-guidelines.md](documentation/API-design-guidelines.md)               | This document captures guidelines for the API design in CAMARA project. These guidelines are applicable to every API to be worked out under the CAMARA initiative. |
-| [API-DocumentationTemplate.md](documentation/API-DocumentationTemplate.md)       | Template for documenting the APIs                                                                                                                                  |
 | [Glossary.md](documentation/Glossary.md)                                         | A glossary of the common terms and their API parameter/field names for use in the APIs                                                                             |
 | [API-Testing-Guidelines.md](documentation/API-Testing-Guidelines.md)             | Guidelines for the API testing in CAMARA project                                                                                                   |
 
@@ -41,7 +41,7 @@ NOTE: Guidelines for Release Management of API versions, e.g. the API-Readiness-
 
 ## Status and released versions
 
-* Release 0.4.0-rc.1 of guidelines and assets for CAMARA APIs is available with the [r0.4.0-rc.1 tag](https://github.com/camaraproject/Commonalities/tree/r0.4.0-rc.1):
+* Release 0.4.0-rc.2 of guidelines and assets for CAMARA APIs is available with the [r0.4.0-rc.2 tag](https://github.com/camaraproject/Commonalities/tree/r0.4.0-rc.2):
 * Release 0.3.0 of guidelines and assets for CAMARA APIs is available within the [release-0.3.0 branch](https://github.com/camaraproject/Commonalities/tree/release-0.3.0):
 * Release 0.2.0 of guidelines and assets for CAMARA APIs is available within the [release-0.2.0 branch](https://github.com/camaraproject/Commonalities/tree/release-0.2.0):
 * Release 0.1.0 of guidelines and assets for CAMARA APIs is available within the [release-0.1.0 branch](https://github.com/camaraproject/Commonalities/tree/release-0.1.0):