How can I revert to the previous version of DraftSight (for Ubuntu x64)

I'm at my wits end. This latest version has various bugs the biggest of which is the fact that esnaps don't work.  It is impossible to draft anything in a reasonable length of time. I've been using CAD software mostly Autocad for nearly 20 years but I've never come across this problem before. How can i go back to the version that was current until you started suggesting we upgrade to the 2015 version.