## v2.2.1 -- April 2026
* Build and CI fixes for RHEL 9 based environments
- Switch container registry usage to `registry.redhat.io`
- Replace RHEL `yq` image pull with direct GitHub download flow
- Pass the EPEL URL as a parameter in Jenkins RHEL jobs
* Licensing and documentation
- Re-license the project from OAI Public License v1.1 to CSSL v1.0
- Re-license documentation under CC-BY-4.0 and orchestration/CI assets under MIT
- Add `NOTICE`, `LICENSES/`, and related contribution/documentation updates
* `UDM` changes:
* Features
- Add SUCI de-concealment support for SIDF Scheme A / ECIES Profile A
- Load subscriber profiles from configuration and use the correct profile for Scheme A/B
- Add example subscriber-profile configuration in `etc/config.yaml`
* Fixes
- Fix CMake/build integration for the new 5G AKA and SIDF code paths
- Fix Docker builds, including `libcrypto` installation, ARM build issues, and shared library copying
* Tests
- Add unit tests for 5G AKA, SHA-256, ECIES format, and ECIES Profile A
* Documentation
- Update feature-set documentation for the new SIDF capability