It's the last set of digits that matter with regard to the version; yours is 60-r9; the download will be 63-r6
The '45' prior to that denotes that you have a camera from use-IP, with a UI part code.
One directly from Milesight would have a '0' in that position.
From a different Partner elsewhere in the world would have a different number code.
There is no difference between the firmware you get from their website or ours.
We actually download from there and upload to this Forum.
Downloading from our servers in the UK is just faster for our customers.
Also, we are working to deliver an archive of versions, and trying to get Release Notes for each version.