- `admin_generateLogBloomCache` JSON-RPC API to generate a cache of the block bloombits that improves performance for log queries [\#262](https://github.com/hyperledger/besu/pull/262)
## Critical Fix in 1.3.7
1.3.7 includes a critical fix for Ethereum MainNet users and the Muir Glacier upgrade. We recommend users of Ethereum public networks
@ -20,6 +26,7 @@ For compatibility with ETC Agharta upgrade, use 1.3.7 or later.
### Additions and Improvements
- Hard Fork Support: Configures the Agharta activation block for the ETC MainNet configuration [\#251](https://github.com/hyperledger/besu/pull/251) (thanks to [soc1c](https://github.com/soc1c))
- `operator generate-log-bloom-cache` command line option to generate a cache of the block bloombits that improves performance for log queries [\#245](https://github.com/hyperledger/besu/pull/245)