From v1.2, Besu requires Java 11. Besu on Java 8 is no longer supported.
For compatibility with Ethereum Istanbul upgrade, use v1.3.4 or later.
### Docker Image Migration
## Pruning
In v1.2, we removed the entry-point script from our Docker image. Refer to the [migration guide](https://besu.hyperledger.org/en/latest/HowTo/Get-Started/Migration-Docker/)
for information on options that were previously automatically added to the Besu command line.
Pruning cannot be used in networks using private transactions.
### 1.3.4
- Reverted _Enable pruning by default for fast sync (#135)_ [\#164](https://github.com/hyperledger/besu/pull/164)
### 1.3.3
### Technical Improvements
- Add --identity flag for client identification in node browsers [\#150](https://github.com/hyperledger/besu/pull/150)
- Istanbul Mainnet Block [\#145](https://github.com/hyperledger/besu/pull/150)