#我要上精选 The United States SEC is stirring up waves again: the approval of DOGE, LTC, SOL, and XRP spot ETFs has been delayed, intensifying market volatility. This move undoubtedly adds more uncertainty to the already volatile crypto market. In addition, the Berlin upgrade by Ethereum has been postponed again, mainly due to a minor bug on the Sepolia testnet which has now been resolved. The original upgrade date was April 8th, and it is now delayed by about a week, so the final upgrade of ETH is likely to be around April 15th. However, the upgrade delay is actually a positive development becaus