According to Odaily Planet Daily, Flow officially released an update on the testnet migration. In preparation for the upcoming Crescendo testnet upgrade, it was discovered that the core smart contract FiatToken has not yet been migrated and upgraded for Cadence 1.0. FiatToken is a key dependency that affects hundreds of contracts. In order to avoid disruptions for dependent smart contracts and improve the experience of developers on Flow, the testnet upgrade has been temporarily postponed while collaborating with contract owners to upgrade. Once there is a clear roadmap and timeline, the community will be informed in a timely manner.