Foresight News reports that Solana infrastructure provider Helius has released an update allowing users to earn SOL rewards through their transactions. This feature is optional and only takes effect when users choose to participate. The mechanism works as follows: users send transactions (buy/sell/swap); KYC-verified Searchers review a simplified version of the transaction; after the transaction is executed, if it creates an arbitrage opportunity, users can earn 50% of the reward. This feature does not affect user transactions, and arbitrage only occurs after the user's transaction is completed.