As a matter of fact, starting that new production we will modify the hardware to improve spurious response and image rejection, so it is maybe better that your customer has all 50 pcs of the same new generation.
If your customer is in a hurry, we can deliver 26pcs of “normal” version now and 24pcs of “improved” version in 2-3 months, but the customer must accept the difference of version, and not claim later.
Also, the “normal” version cannot be upgraded to the “improved” version later, so please keep it in mind.