If your version was below 2.5; this update will result in old worlds becoming corrupted. Make a new world if you're below version 2.5.
Dev Note: Addressed a few concerns with the parody of Beta combat by increasing movement speed for most mobs as well as adding a 'Steve' Class that gives Veteran players the option to play without a Class. Additionally, this update fixes a few annoyances with Dragons, specifically their knockback which makes killing them through melee a bit superfluous; toned this down a little.
I recommend to make attempts to apply lapis to your armour via an anvil, you may or may not get knockback resistance applied to it or try ranged weapons.
If your version was below 2.5; this update will result in old worlds becoming corrupted. Make a new world if you're below version 2.5.
Dev Note: Multiplayer is still not perfect, extensive testing seems to show moderately better results with this hotfix update; reduced lag spikes with e4mc and possibly on servers. Will still closely monitor this.
If your version was below 2.5; this update will result in old worlds becoming corrupted. Make a new world if you're below version 2.5.
araucaria savanna, cika woods, forgotten forest, white mangrove marshes. create a new world to view them.
If your version was below 2.5; this update will result in old worlds becoming corrupted. Make a new world if you're below version 2.5.
If your version was below 2.5; this update will result in old worlds becoming corrupted. Make a new world if you're below version 2.5.

⚔️ What if Beta 1.7.3 was a MMORPG? ⚔️