Whatpulse older versions

I am using an old machine with Ubuntu 10.04 LTS. I can’t upgrade to newer supported versions of the OS as my machine is not fast enough run them. Whatpulse 2.5 isn’t supported on my current machine as its lacking dependencies (libstdc++.so.6: version `GLIBCXX_3.4.15’). Is there a way I can find an older version of Whatpulse?