* Features
  - Update UDM APP structure
  - Use HTTP Request Timeout parameter from Conf file
* Fixes
  - Fix HTTP/2 server shutdown
* Tech Debt
  - Code cleanup
  - Stopping support for RHEL8/Rocky8 in favor of RHEL9/Rocky9
  - Removing unneccessary packages from target images
  - Cleanup UDM client and add connection handling mechanism
  - Move UDM SBI models to common src git submodule
  - HTTP client cpr library refactoring effort

* Fixes
  - Remove NRF dependency from SMF

* Features
  - Support YAML configuration file
    * Yaml validation default value
* Fixes
  - Fixed HTTP/2 issue for SDM sm-data API
* Tech debt
  - Updated common models to 3GPP TS 29.571 Release 16.13.0 and moved them to the shared common submodule
  - Switching to clang-format-12
  - Published image on Docker-Hub is using now Ubuntu-22 as base image
    * Ubuntu-18 is no longer supported

2021-Q4 Milestone:

* Experimental support for Event Exposure
* Added HTTP2 support
* Fix static addr allocation
* Fix build issue
* Docker build optimizations

Fix build issue

Fix build issue

Initial public release: NRF registration; HTTP2

Initial Public Release