The PCI Security Standards Council have extended the expiry of PCI PTS v4.x to April 2024.
Due to industry feedback regarding global supply-chain disruptions, the PCI SSC has changed the expiration date for PIN Transaction Security Point-of-Interaction (PTS POI) version 4 devices from 30 April 2023 to 30 April 2024.
Official Bulletin can be downloaded here – PCI PTS v4.x extension