Wu Blockchain has learned that Solana's improvement proposal SIMD-0268 has been accepted (the next step is waiting for the community vote to decide whether to activate it). The proposal increases the nested limit for cross-program invocations (CPI) from 4 to 8. It aims to enhance the interoperability complexity of dApps, allowing more inter-program calls within a single transaction, thereby improving the overall composability of the network.