I downloaded 4.3.1 running it under Java 1.8.0 on CentOS 6, binary compatible with RedHa6. I have not found any good introduction on the net so I am trying different things. I do not know if I am doing anything wrong but the software seems flaky. I have, as an example, not been able to save any library, the software simply hangs. Getting references from Pubmed does not seem to work seamlesslessly and sometimes I get various exceptions in the console etc.
I am loath to invest more time or suggest it to others until I have been assured that I am doing something wrong.