- UEContextModifcationRequest does not have both CSFallbackIndicator and SecurityCapabilities ([#223](https://github.com/open5gs/open5gs/pull/223)) -- [medeiros405](https://github.com/medeiros405)
- Open5GS crash in MT-Fallback with fixing the BUG of ogs_realloc() ([ogslib:#4](https://github.com/open5gs/ogslib/issues/4))
- Fix Diameter spec-compliant related issue ([#240](https://github.com/open5gs/open5gs/pull/240)) -- [laf0rge](https://github.com/laf0rge)
- Prefer to use SCTP in Diameter ([#235](https://github.com/open5gs/open5gs/pull/235)) -- [laf0rge](https://github.com/laf0rge)
- Set Diameter SCTP PPID to 46 ([#234](https://github.com/open5gs/open5gs/issues/234)) -- [laf0rge](https://github.com/laf0rge)
- MME protects SecurityModeComplete that is not integrity ([#226](https://github.com/open5gs/open5gs/issues/226)) -- [laf0rge](https://github.com/laf0rge)
- Add Guard timer in EMM state machine ([#220](https://github.com/open5gs/open5gs/pull/220)) -- [laf0rge](https://github.com/laf0rge)
- mme-kdf: Ensure input arguments(kasme, ..) are read-only and 'const' ([#230](https://github.com/open5gs/open5gs/pull/230)) -- [laf0rge](https://github.com/laf0rge)