Release Core Specification Version 1.1.1

**Background**

The Beckn Core Protocol is currently specified using OpenAPI version 3.0. To leverage the latest features, improvements, and compliance enhancements in OpenAPI 3.1, there is a need to update the protocol specification.

**Objectives**

- Upgrade Specification: Update the Beckn Core Protocol YAML files to be compliant with OpenAPI 3.1.
- Validate Compatibility: Ensure that all existing API definitions are compatible with OpenAPI 3.1 syntax and semantics.
- Documentation and Examples: Update accompanying documentation and examples to reflect changes made during the migration.
- Tooling and Integration: Verify that all related tooling (e.g., code generators, validators, linters) support and work seamlessly with OpenAPI 3.1.

**Tasks**

- Review Changes in OpenAPI 3.1:
- Understand key differences between OpenAPI 3.0 and 3.1.
- Identify features in 3.1 that are relevant to the Beckn Core Protocol.
- Update YAML Files:
- Modify existing OpenAPI 3.0 YAML files to conform to OpenAPI 3.1 standards.
- Ensure all endpoints, schemas, and components are correctly defined.
- Testing and Validation:
- Use OpenAPI 3.1 validation tools to verify the updated specifications.
- Perform integration tests to ensure no regressions or issues arise from the migration.
- Update Documentation:
- Revise documentation to reflect changes in the specification.
- Provide updated examples and usage guidelines for developers.
- Coordinate with Stakeholders:
- Communicate with developers, integrators, and other stakeholders regarding the migration.
- Offer support and guidance for any issues arising from the update.

**Expected Outcomes**

- A fully migrated Beckn Core Protocol specification compliant with OpenAPI 3.1.
- Updated documentation and examples that align with the new specification.
- Enhanced compatibility with modern tooling and improved protocol features.

**References**

- [OpenAPI 3.1 Specification](https://github.com/OAI/OpenAPI-Specification)
- [Migration Guide](https://www.openapis.org/blog/2021/02/16/migrating-from-openapi-3-0-to-3-1-0) from OpenAPI 3.0 to 3.1