Pci Express M.2 Specification Revision 5.0 Version 1.0 Pdf Patched Direct

Yes, and this is explicitly covered in Rev 5.0 V1.0, Annex B (Capability Negotiation).

The working group explicitly verified that existing M.2 mechanical designs could pass PCIe 5.0 compliance with improved layout practices – no retooling of connector housings was mandated. pci express m.2 specification revision 5.0 version 1.0 pdf