On May 3, the BCH development team Bitcoin ABC issued a document stating that Bitcoin ABC 0.27.4 has been released, and all operators of Bitcoin ABC must upgrade to the latest major version (0.27.x), including avalanche pledge nodes, miners and transactions Place. This release is a maintenance release with version updates for several dependencies. MacOS users should note that this is no longer compatible with OSX versions prior to October 15th. At 20:00:00 on May 15th, Beijing time, when the median of the last 11 blocks reaches 1684152000, the upgrade will be excited.