* Features
  - Use HTTP Request Timeout parameter from Conf file
  - Support advanced `UpfInfo` from config file, allows to configure different UPF flavors without NRF
  - Resolve UPF from config file 10 times every 2 seconds, allowing flexibility in start order
* Fixes
  - Fix multiple PDU session SEID handling
  - Fix issue for PDU session establishment
  - Fix: properly ending any thread and not generating seg fault when stopping smf process
  - Fix N1/N2 handling between AMF and SMF when gNB exits
  - Fix(handover): Check if N2 SM Info is set in HO Complete
  - Fix: smf expecting CreatedPDR in n4_session_establishment_response when UPF that does not support TEID Creation
  - Fix: NGAP S-AMBR encoding from bitrate string
  - Fix: Allow lower-case SD values and also allow 0xSD values in config
  - Fix HTTP/2 server shutdown
  - Fix error message upon PFCP session establishment request
  - Fix SMF crash on startup when peer UPF is not reachable
* Tech Debt
  - Stopping support for RHEL8/Rocky8 in favor of RHEL9/Rocky9
  - Graph refactor, preparation for QoS handling
  - Resynch SMF with common source git-submodule and use utils from there
  - Move SMF SBI models to common src git submodule
  - HTTP client cpr library refactoring effort

* Features
  - Add N1/N2 info in the message response to AMF if available
* Fixes
  - Remove NRF dependency from SMF
* Tech debt
  - Refactor SMF PFCP associations to always use UPF info

* Features
  - Support YAML configuration file
    * Yaml validation default value
    * Make DNS configurable per DNN
    * Add CIDR DNN configuration
    * implement UpfInfo parsing for YAML config
  - Support getting SMF configuration with the new SMF configuration API
  - Handled traffic redirection PCF policy
  - Giving users possibility to configure SMF info themselves
  - Removed SBI DNS lookup upon start of SMF
  - De-register to NRF on exit
  - Enabled event exposure in HTTP/2 API server
* Fixes
  - Fixed ULCL support in SM context update procedure
  - Fixed SEID assignment in N4 session establishment request
  - Fixed Service Request handling
  - Fixed YAML config issues
  - Fixed Handle IE Usage Report in session deletion response
  - Fixed SMF selection (NRF registration) when local subscription info is not used
* Tech debt
  - Updated common models to 3GPP TS 29.571 Release 16.13.0 and moved them to the shared common submodule
  - Updated SMF-specific NRF models to Release 16.15.0 and moved them to the shared common submodule
  - Updated PCF models to Release 16.17.0 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:

* Update NWI from NF profile
* Update SMF profile
* Added retry for PFCP association request
* More flexible DNN/IP ranges when deploying container
* Fix retrieving the list of NWI
* Fix entreprise IE decoding
* Fix issue for UPF selection
* Fix for IE Measurement Period
* Docker optimization

Fix build issue; Fix UPF selection; Timers handling: T3591/T3952

Fix build issue; Fix UPF selection; Timers handling: T3591/T3952

September 2021: Event Exposure; UPF profile update; URR query; HTTP2; Bug fixes

PFCP Release 16; NRF registration; multiple UPF instances support; Dotted DNN support; Full support for Ubuntu18 and RHEL8

FQDN support

Fix issues with NRF

Initial Support for Multiple UPF instances

Migration to the new OpenShift Jenkins instance