Hi, simfriends
I have installed the v4 a few mounths ago, is a great choice and it is the sim future, ok!
But this morning , I desired to fly the majestic D8/400 and was ""very happy"" that I don't have uninstalled the version 3.4.
Yes with uninstalling, you retrieve a lot of diskspaces but you lost too a lot of aircrafts or sceneries no compatible for v4.
I understand that a lot of developpers don't want to convert or remake a upgrade version for some reasons: they are perhaps to old, or perhaps unable, or want to do other aircrafts/sceneries that making boring corrections.
To keep one older version of your's sims make sens to keep under the arm your invests of the past.
Just the problem for most is the kost of a great and fast disk... a ssd perhaps.
have a good flight today
Mark.