If you read the headline and thought "wait, what about PCIe 6?" then you must have missed when the spec was finalized back in January... of 2022. That's only three years ago, though, and it is ...
PCIe Gen6 offers a 2-4X faster line rate compared to competing FPGAs with PCIe Gen4 or Gen5 support, while CXL 3.1 running PCIe Gen6 provides double the bandwidth of competing devices with CXL 2.1 ...