Introducing Arrowhead 6.4.0

Summary:

The Rootstock community is pleased to announce the release of the latest version of the RSKj client, which is now available in the RSKj GitHub repository. This update introduces the fiat-stable minimum gas price feature (disabled by default), enabling mining pools to automatically adjust their minimum gas price configuration based on the price of Bitcoin. Additionally, it includes JSON-RPC interface improvements and dependency upgrades, now supporting Java 21 LTS.

Note that this upgrade is optional, however it is strongly recommended that users update their nodes to the latest version to benefit from enhanced performance and security.