Default Terra rom compatibility

Hey friends i'm having Xperia u ST25a and I thought to a flash rom.Yesterday I saw TERRA ROM which is best for it but I have problem, in the thread it is written" This ROM is built on Stock 6.1.1.C.1.0 FW
Converted Completely to generic and suitable for
all [locked boot loaders & unlocked boot loaders]
& [st25a &st25i]" but i have ics b.100 fw. So can I flash it?

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