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Go 1.25 Release Notes
Introduction to Go 1.25 The latest Go release, version 1.25, arrives in August 2025, six months after Go 1.24. Most of its changes are in the implementation of the toolchain, runtime, and libraries.
On all OSes, the runtime periodically updates GOMAXPROCS if the number of logical CPUs available or the cgroup CPU bandwidth limit change. Specifcally, the FileConn, FilePacketConn, and FileListener functions are now implemented, and return a network connection or listener corresponding to an open file. Similarly, the File methods of TCPConn, UDPConn, UnixConn, IPConn, TCPListener, and UnixListener are now implemented, and return the underlying os.File of a network connection.
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