The 1.21.1 version's source code & project setup was a total mess, so I did an entire rewrite for 1.20.1 - this time doing it right.
Improvements:
- Massively reduced the encoded size of blockstates:
- Approximately an 8x reduction in size over the original 1.3.0 release for just vanilla states
- Approximately a 37x reduction over 1.3.0 in certain large modpacks (hard to test due to
1.20.1/1.21.1)
- Massively improved parsing and remapping times
- Measured 70x improvement over 1.3.0 on even very lightly modded modpacks
- Now properly handles:
- Properties that only exist on the client
- Properties that only exist on the server
- Property values that only exist on the client
- Property values that only exist on the server
I wrote version 2.0.0 in a way that should be easy to port to 1.21.1 again, and I already have ideas for further improvements and optimizations for a hypothetical 2.1.0 release.
Additionally, there are plans for a Forge/NeoForge release sometime in future if I ever get the time.
Changes (1.3.0 -> 1.4.0-b1):
- Massively reduced packet and file size by well ordering states
- Optimized encoding for chunked packets (approx 15x faster on large modpacks)
- Unchunked packets are still a W.I.P. and will be part of the 1.4.0 release
Initial Release


