Drop support for migrating from Trac or Mantins
In the last 3 or 4 years there were no improvements made to the scripts provided by Redmine to migrate from Mantis or Trac to Redmine. During these years, Redmine improved a lot. Also, there are at least 45 open issues related to migration from Trac and 14 related to migration from Mantis.
My proposal is to drop support for those 2 migration scripts.
#2 Updated by Bernhard Rohloff 12 months ago
We faced the problem of moving from Mantis to Redmine about two years ago. It was somehow necessary to start from a 2.x release to get the migration finished. After all we decided to start with Redmine from scratch as the import changed the issue IDs due to deleted issues in Mantis. IMHO, it's always better to start from scratch. :-)
+1 to drop support.
We could leave a note in the wiki to describe a migration to an older version and afterwards upgrading to a current one.