Tags

* Features
  - NGAP AMF status indication
  - Add UE Retention Information support
  - Update NAS with Rel 16.14.0 IEs
    *  Refactoring code for Encode/Decode functions
    *  Cleanup NAS lib
* Fixes
  - Fix typo for N1N2MessageSubscribe
  - Fix issue when receiving PDU session reject from SMF
* Tech debt
  - Reformating of the SCTP code
  - Refactor promise handling
  - Removing dependencies to libconfig++ (Only YAML file can be read as configuration)

* Features
  - Support YAML configuration file
    * Yaml validation default value
  - Service request handling
  - Update API Server name/structure
  - N2 info notify
  - Updated NGAP library to 38.413 V16.14.0
  - Location Report Notification for N2 Handover
  - LMF Determine Location & DownlinkUeAssociatedNrppaTranport support
* Fixes
  - Fixed: Add NSSAI info in AMF profile to send to NRF
  - Fixed: Http1/2 - only spawning one HTTP server
  - Fixed: HTTP2 support for Configuration/Location-related APIs
  - Fixed: Display NRCellID in hex to associate between UE and gNB
  - Fixed: Use AMF ID as string to register to NRF
  - Added missing HTTP2 APIs for N1 Message Notify, N1N2MessageSubscribe/Unsubscribe, Status Notification
  - Free allocated memory in Destructor of NGAP msg instead of using Delete operator
  - Added retry mechanism for NF Registration/Update
  - Removed unnecessary config parameter: generate_random (database)
  - Fixed N1/N2 message unsubscribe API
  - Fixed issue when decoding PduSessionResourceSetupResponse
* 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
* Miscellaneous
  - Code refactoring: ITTI between SBI and other tasks, NGAP IEs
  - Code cleanup: NAS IEs, N2, removed usused code, Used new instead of malloc/calloc for N2

2021-Q4 Milestone:

* Periodic Registration Update
* Support for Event Exposure (Registration State Report)
* Implicit Deregistration Timer
* Mobile Reachable Timer
* Mobility Registration Update
* NRF Selection (via NSSF)
* Fix for validation of SMF Info
* Fix RAN UE NGAP Id
* Fix SMF Selection SD
* Fix NSSAI mismatch
* Fix Service Request
* Fix HTTP2
* Fix MCC such as 001
* Docker optimization

Fix build issue; Tentative fix for ngKSI already in use; Initial implementation for Mobility registration update

Fix build issue; Tentative fix for ngKSI already in use; Initial implementation for Mobility registration update

AUSF connection,PDU Session Resource Modify procedure; HTTP2; AMF Event Exposure Services; multiple fixes

Session Release; NRF registration; Multi-PDU support

FQDN support

Migration to the new OpenShift Jenkins instance

Initial release

CI skeleton is ready