On February 26th, Solana's SIMD-0228 proposal is now open, aiming to shift SOL distribution to a market-driven model. A vote is expected in about 10 days. The proposal sets a target pledge rate of 50% to enhance the security and decentralization of the network. If more than 50% of the SOL is pledged, the issuance will decrease, thereby discouraging further pledges by lowering the yield; if less than 50% of the SOL is pledged, the issuance will increase to increase the yield and encourage pledges. The minimum inflation rate will be 0%, while the maximum inflation rate will be determined based on the current Solana issuance curve.