We're a few days away and a few more bugs have been squashed.

• Fixed issues with the Nether surface generation, causing issues like floating lava and crimson forests without nylium
• MC-150543 - Using a stonecutter can sometimes crash the game in certain circumstances
• MC-174790 - Mob on turtle eggs causes the game to crash
• MC-181833 - Crash on world startup after playing world in 20w18a