Quectel RM521F-GL Availability and Engineering Samples Support?

I am looking to buy this SD X65 based 5G module but everywhere I looked on AliExpress and Alibaba they only have engineering samples, they don’t have production units. My question is if I buy an engineering sample would there be future firmware updates to fix any bugs or issues? Thanks!

Dear @Semsem
Actually, MP firmware can’t used to upgrade engineering sapmle. And we are not sure if the module’s hardware change or not due to the module is developing.