"STALL WARNING enhancement: Stall warning will work when:
Undetected erroneous computation of pitot
Pitot out of the airflow
Pitot obstructed by ice or any foreign material at any speed (function now possible below 60 kts)"
Actually the logic isn't changed, the AoA sensor information is fed trough the IRU part of ADIRU i.s.o. the Air Data part, resulting in the AoA data remaining available to FWC in case of Airspeed < 60 kts.
This kind of system updates depend on the modification status of the particulair aircraft/fleet.
AFAIK If you didn't opt for de BUSS enhancement you won't have the quoted "STALL WARNING enhancement"
Besides this there are more updates since the event.
- BUSS(before event) and further enhancement >Reversible BUSS.
- Hybrid FPA.
- Visible Red 'STALL STALL' warning on PFD.
Related to the Blocked AoA sensor issues:
- Separate AoA sensor monitoring.
- Replacement of all UTAS sensors by Thales sensors.