Hardware - firmware version differences within the same model line
It would be great if TP-Link would provide more additional information for hardware-firmware versions and differences within the same model line. For example, EAP225 could be V1, V2, V3, V3.20, V4, V5. What are real differences in hardware between these versions? Some of them are compatible with some firmware releases of Omada, some not. Moreover, when you you order online, as a rule, nobody of the vendors shows the hardware revision of a TP-Link device. And TP-Link should make a must for any vendor to mention the hardware version of the available device in stock.
Otherwise buying a TP-Link device online turns into sort of win or loose - you have no idea which version you would get.