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 1.4 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.
Suggestions: Demon pony, when killed alot has a chance to drop banner, spawns in corruption. Dead horse, has a chance to spawn in crimson, when killed drops meat leg, summons a special new boss when 15 of them are combined. Confused Zombie npc, sells zombie arm, zombie banner, more items on hardmode, after mech killed has even more, expert mode makes him a sells a suspicious floating head. When in hardmode, there are spy chickens that drop chicken legs, and in underground crimson/corruption, is found a rotted chicken, which drops rotted zombie leg, which you can use in a special crafting station to craft a Green Chicken head, which summons a badass green chicken to peck at your enemies. Then, remove RNGs world gen, and put an option to choose a bloody or corrupt world.
Yes I like the sound of this spoiler now all we need is news of improvements to the ocean, hardmode hell, and the desert all for an end to under developed biomes and it would be the best update ever! Terraria now with the hopes of bad AI that can make enemies actually be a challenge