Where can I get a copy 2.8 so I can do a clean restore before upgrading?

I have searched around and have not found a place to download the 2.8 distribution where can I get it? I need to do a restore to 2.8 and then move to 2.9 because of the extensive changes in the DB structure and from what I read you cannot restore a 2.8 backup to a 2.9 install. I did find the indivdual source files but there is not package containing all of the files, where is this located on your site.



Thank you. I was just about to do a wget with a wildcard to try and download the source files, but I was not sure whether I should download from branches, tag or trunk?