Official link: https://github.com/tronprotocol/java-tron/releases/tag/GreatVoyage-v4.5.2

• TIP-428 Optimize lock competition in block processing #4551

• TIP-440 Optimize transaction cache #4538

• TIP-425 Improve TCP
  connection establishment efficiency #4549

• Optimize block generating logic #4387

• Optimize fork switching logic #4583

• Add tools for database storage #4545 #4559 #4563

• Add query header API #4492 #4552

• Improve node link stability #4542 #4540

• Improve fault-tolerance capabilities of API parameters #4556 #4560

• Optimize the eth_estimateGas
  and eth_call
  JSON-RPC API #4570

The universe is change; our life is what our thoughts make it.

—Aurelius