Description of the Mantis change log (changelog) and roadmap

Change log (changelog): It is a log that has modified the problem. You must add the version number to the project and specify the corresponding version number when adding or resolving the problem. Roadmap): It is a log that is scheduled to modify certain problems in a specific version. You must specify a "target version" for the problem to be displayed. (Tip: If you specify the "target version", you should go to the "advanced Update" function to modify it, or go to the "Advanced Report" function when customs clearance issues occur ). When Mantis was first used, the roadmap function was just found out. If you have a better understanding, I hope you can give me some advice.