Karak Network continues to advance on the path of blockchain technology innovation and has recently launched its V2 version's first phase Keystone testnet. This milestone update not only achieves significant breakthroughs in basic functionalities by introducing a contract-based Slashing mechanism, enhancing system security and stability, but also importantly provides developers with a flexible platform to deploy Distributed Security Services (DSS) for higher levels of network protection. It also supports the development of customizable re-staking mechanisms, further enriching the network ecosystem. Additionally, to meet different user needs, operators can now configure validators and native staking modules on the Keystone testnet, thereby enhancing the network's customizability and adaptability. The launch of this Keystone testnet not only showcases Karak Network's deep technical accumulation in the blockchain field but also provides new possibilities for innovation and collaboration within the industry.