I am a relative new user to AC starting in January. I am interested in the process of upgrading to version 4.

Since my office has had some glitches with getting all of the network, laptops, desktops coordinated and functioning, there is a bit of backlog in documentation still to be done in the AC program.... i.e entering lost data when the server crashed. There fortuantely have been no other crashes.

When one updates from version 3.7.15 my version to version 4 all of the data will be transitioned, correct?
Do I need to do OSBU prior to version 4 upgrade.\

Please advise.... Iknow that there will be another upgrade coming soon and Idon't want to get tooo far behind.

How has version 4 improved process from version 3.7 for those of you who have upgraded?

Last, how much time should I alot for the version 4 upgrade?

Thanks


Jennifer