Here's the changelog for update v2.4.2:
- Economy has been reworked and fixed up. The outdated and unfair prices have been adjusted, and sell rates are now (usually) a fourth of the buy price instead of 80% of it.
- Mob spawners are now more fairly priced and are more worth it as well
- Ore prices are now in proportion. Rubies cost 10,000P instead of 40,000P.
- Combining max level enchantments has been fixed