I have windows 7 Home premium 64 bit 61 build 7601, and I wish to download Windows 10, can anybody tell me if L.O. version 5.3 needs updating for this or will it run O.K.
5.3 is ages old, I don’t remember if it would even run with Windows 10, but anyways I’d much recommend the current 6.2.8 or even 6.3.3 instead.
Any version of LibreOffice (including the very first 3.3, and OOo versions before then) runs on Windows 10.
But note the advice from @erAck!