In most cases everyone uses the most recent version of an application, which is 2.2.x in the case of Redmine. But there can be a choice. Thus, some stable Linux distributions come with older Redmine versions. Should you stick to that version or should you install the recent one which is more complex and assumes further manual checks for updates and doing multiple manual migrations? Besides, what if your organization uses a hardly modified copy of Redmine and therefore sticks to a particular version? Should you allocate resources for a hard migration? To answer such questions you should know a few things about those versions such as what do you lose, what will you get and so on. In this topic, we will review primary features introduced by some recent versions of Redmine and ChiliProject.