Help retrieving SVN credentials + upgrade to latest code

Dear Observium team,

I joined a company that has a Observium professional subscription in place but it seems this has been set up by previous MSP working with us and therefore I do not have the SVN credentials.

I also would like to have an upgrade path so we can bring our Observium to the latest support version.

I am hoping upgrading to the latest support version will also mitigate some issues that we are facing with grouping.