Mi8 MIUI 12.1 weekly to 12.5 stable

[spockie]

Hi all.

I have a doubt:

I have version 12.1 20.9.4 Beta in my Mi8 (dipper) and I want to install xiaomi.eu_multi_MI8_V12.5.2.0.QEACNXM_v12-10.zip (last stable).
Do I have to format data? Is it considered a downgrade?

Thanks!