For issues you find with the Switch and Console releases, please follow this link and give as much detail as possible. This is the speediest way to get info to Pipeworks and get a hotfix in the works.
1.4 will bring many changes to the PC version. We strongly advise making plans to back up your worlds and players prior to updating your game. More details here.
Begin your search for Journey's End information here and here. Please report bugs and issues for Journey's End here.
For issues you find with the Mobile 1.3 update, please follow this link and give as much detail as possible. This is the speediest way to get info to DR Studios to look at your issue. Also, some troubleshooting hints here.
@Cenx please come out with the mac version of terraria soon because I have an Alienware computer but I want to play with my friends but they have macs and they have asked me everyday "Is terraria out for mac?" so, please let me tell them yes with coming out with it soon! No rush though, and Thanks!