You can't edit locked questions, only moderators can. Your question was locked because the migration got rejected, meaning that the question is now unlocked on the original site where you asked, here.
Your question was closed as not constructive because it doesn't ask a practical question. Listing out how software has evolved over the past couple years would not be acceptable anywhere on the Stack Exchange network. If you're really curious, go to their website and find some changelogs, etc that outline how things have been progressing over time.