Content Manager - How to update ??

Hi everybody.

All is in the title.
I have an activated version of Content Manager, and I have seen recently that I don't have the very last version installed. I came to this because I wanted to force a datum for using GBWsuite, and I didn't found the option where it is suppose to be.

I could found the log with the version numbers, and I have seen that the one installed is not the last one.

But how to update ??? Impossible for me to find the way to do this in content Manager itself.
I...

Content Manager - How to update ??