Solana's core development team, Anza, has announced a significant enhancement for Alpenglow with the introduction of SIMD-0337, which incorporates block markers. This development lays the groundwork for Fast Leader Handover, a mechanism designed to improve the protocol's resilience. In many blockchain protocols, improper leader behavior can lead to abandoned blocks or forks. However, Alpenglow's robust mechanisms are designed to withstand such attacks, ensuring stability and security.