According to SolanaFloor, the Solana Foundation has introduced a new policy to strengthen decentralization: for every new validator added to its Delegation Program, if some validators have been eligible for Solana Foundation's delegation on the mainnet for at least 18 months and have pledged less than 1000 SOLs outside of Solana Foundation's delegation, three of them will be removed. This change aims to reduce reliance on foundation commissions, encourage community supported validators, and maintain a more efficient and decentralized network.