1.4.0.0-PN-ALPHA.1 - 2020-11-21
NOTE: This changelog is still being worked on.
This is a HUGE update! It adds support to almost all blocks and items, makes a lot of performance improvements, and adds TONS of new stuff and APIs! They are so numerous that I will have a hard time listing all of them.
Make sure to make a world backup, and don't revert to older versions of PowerNukkit as it might cause chunk and inventory issues.