diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00d3223..a0058b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
## Table of Contents
+- [r1.3](#r13)
- [r1.2](#r12)
- [r1.1 - rc](#r11---rc)
- [v0.2.1](#v021)
@@ -15,6 +16,74 @@ The below sections record the changes for each API version in each release as fo
* for subsequent alpha or release-candidate API versions, the delta with respect to the previous pre-release
* for a public API version, the consolidated changes since the release of the previous public API version
+## r1.3
+
+## Release Notes
+
+This release contains the definition and documentation of
+* Carrier Billing v0.3.1
+* Carrier Billing Refund v0.1.1
+
+The API definition(s) are based on
+* Commonalities v0.4.0
+* Identity and Consent Management v0.2.0
+
+## Carrier Billing v0.3.1
+
+**Carrier Billing v0.3.1 is a public release (patch release for v0.3.0) of the Carrier Billing (Payment) API.**
+- **This version contains documentational updates compared to v0.3.0, being backwards compatible:**
+ - Added a section `# Generic Clarification about optional parameters` within API Spec `info.description` field
+
+- API definition **with inline documentation**:
+ - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing.yaml&nocors)
+ - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing.yaml)
+ - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.3/code/API_definitions/carrier-billing.yaml)
+
+**Main changes since [r1.2](#r12)**
+
+### Added
+* New section `# Generic Clarification about optional parameters` within API Spec `info.description` field in https://github.com/camaraproject/CarrierBillingCheckOut/pull/183
+
+### Changed
+* Update `README.md` with new wiki domain for the Sub-project in https://github.com/camaraproject/CarrierBillingCheckOut/pull/182
+
+### Fixed
+* N/A
+
+### Removed
+* N/A
+
+## Carrier Billing Refund v0.1.1
+
+**Carrier Billing Refund v0.1.1 is a public release (patch release for v0.1.0) of the Carrier Billing Refund API.**
+- **This version contains documentational updates compared to v0.1.0, being backwards compatible:**
+ - Added a section `# Generic Clarification about optional parameters` within API Spec `info.description` field
+
+- API definition **with inline documentation**:
+ - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing-refund.yaml&nocors)
+ - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing-refund.yaml)
+ - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.3/code/API_definitions/carrier-billing-refund.yaml)
+
+**Main changes since [r1.2](#r12)**
+
+### Added
+* New section `# Generic Clarification about optional parameters` within API Spec `info.description` field in https://github.com/camaraproject/CarrierBillingCheckOut/pull/183
+
+### Changed
+* Update `README.md` with new wiki domain for the Sub-project in https://github.com/camaraproject/CarrierBillingCheckOut/pull/182
+
+### Fixed
+* N/A
+
+### Removed
+* N/A
+
+## New Contributors
+* N/A
+
+
+**Full Changelog**: https://github.com/camaraproject/CarrierBillingCheckOut/compare/r1.2...r1.3
+
## r1.2
## Release Notes
diff --git a/README.md b/README.md
index 58b271b..fc14306 100644
--- a/README.md
+++ b/README.md
@@ -26,26 +26,26 @@ Repository to describe, develop, document and test the CarrierBilling API family
* Note: Please be aware that the project will have updates to the main branch. There are no compatibility guarantees associated with code in any branch, including main, until a new release is created. For example, changes may be reverted before a release is created. **For best results, use the latest available release**.
-* **The Release [r1.2](https://github.com/camaraproject/CarrierBillingCheckOut/blob/main/CHANGELOG.md#r1.2) for the Carrier Billing APIs Family is available.**
-
This is a public release candidate.
+* **The Release [r1.3](https://github.com/camaraproject/CarrierBillingCheckOut/blob/main/CHANGELOG.md#r1.3) for the Carrier Billing APIs Family is available.**
+
This is a public release.
-* The release **r1.2** is available in [r1.2](https://github.com/camaraproject/CarrierBillingCheckOut/tree/r1.2), and includes the following APIs:
-- API name: Carrier Billing (Payment) - API Definition v0.3.0 with inline documentation:
- - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.2/code/API_definitions/carrier-billing.yaml&nocors)
- - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.2/code/API_definitions/carrier-billing.yaml)
- - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.2/code/API_definitions/carrier-billing.yaml)
+* The release **r1.3** is available in [r1.3](https://github.com/camaraproject/CarrierBillingCheckOut/tree/r1.3), and includes the following APIs:
+- API name: Carrier Billing (Payment) - API Definition v0.3.1 with inline documentation:
+ - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing.yaml&nocors)
+ - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing.yaml)
+ - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.3/code/API_definitions/carrier-billing.yaml)
-- API name: Carrier Billing Refund - API Definition v0.1.0 with inline documentation:
- - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.2/code/API_definitions/carrier-billing-refund.yaml&nocors)
- - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.2/code/API_definitions/carrier-billing-refund.yaml)
- - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.2/code/API_definitions/carrier-billing-refund.yaml)
+- API name: Carrier Billing Refund - API Definition v0.1.1 with inline documentation:
+ - [View it on ReDoc](https://redocly.github.io/redoc/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing-refund.yaml&nocors)
+ - [View it on Swagger Editor](https://editor.swagger.io/?url=https://raw.githubusercontent.com/camaraproject/CarrierBillingCheckOut/r1.3/code/API_definitions/carrier-billing-refund.yaml)
+ - OpenAPI [YAML spec file](https://github.com/camaraproject/CarrierBillingCheckOut/blob/r1.3/code/API_definitions/carrier-billing-refund.yaml)
* Other releases of this sub project are available in [CarrierBillingCheckout Releases](https://github.com/camaraproject/CarrierBillingCheckout/releases)
* For changes see [CHANGELOG.md](https://github.com/camaraproject/CarrierBillingCheckout/blob/main/CHANGELOG.md)
## Contributing
* Meetings are held virtually
- * Schedule: Bi-Weekly, Wednesdays 15:00 - 16:00 CET/CEST
+ * Schedule: Bi-Weekly, Wednesdays 13:00 - 14:00 UTC
* [Registration / Join](https://zoom-lfx.platform.linuxfoundation.org/meeting/96513497117?password=ac26d34b-87d2-4d78-aa47-4de1ca14c882)
* Minutes: Access [Meeting minutes](https://lf-camaraproject.atlassian.net/wiki/x/CDDe)
* Mailing List
diff --git a/documentation/API_documentation/carrier-billing-API-Readiness-Checklist.md b/documentation/API_documentation/carrier-billing-API-Readiness-Checklist.md
index c6128a4..89488a0 100644
--- a/documentation/API_documentation/carrier-billing-API-Readiness-Checklist.md
+++ b/documentation/API_documentation/carrier-billing-API-Readiness-Checklist.md
@@ -1,6 +1,6 @@
# API Readiness Checklist
-Checklist for Carrier Billing v0.3.0 in r1.2
+Checklist for Carrier Billing v0.3.1 in r1.3
| Nr | API release assets | alpha | release-candidate | initial
public | stable
public | Status | Comments |
|----|----------------------------------------------|:-----:|:-----------------:|:-------:|:------:|:----:|:----:|
diff --git a/documentation/API_documentation/carrier-billing-refund-API-Readiness-Checklist.md b/documentation/API_documentation/carrier-billing-refund-API-Readiness-Checklist.md
index 650ec51..e94863e 100644
--- a/documentation/API_documentation/carrier-billing-refund-API-Readiness-Checklist.md
+++ b/documentation/API_documentation/carrier-billing-refund-API-Readiness-Checklist.md
@@ -1,6 +1,6 @@
# API Readiness Checklist
-Checklist for Carrier Billing Refund v0.1.0 in r1.2
+Checklist for Carrier Billing Refund v0.1.1 in r1.3
| Nr | API release assets | alpha | release-candidate | initial
public | stable
public | Status | Comments |
|----|----------------------------------------------|:-----:|:-----------------:|:-------:|:------:|:----:|:----:|