Chapter 6. Changes in Go Toolset 1.25

Go Toolset has been updated to version 1.25.0.

Language:
- There are no user-visible changes to the language in Go 1.25.
Runtime and Performance:
- The runtime now automatically sets GOMAXPROCS based on the CPU quota available to the container on Linux.
- A new experimental garbage collector ("Green Tea") is available, optimized for improving tail latency in certain workloads.
Tools:
- The compiler and linker now default to generating DWARF 5 debug information.
- The go build -asan command now detects memory leaks at program exit by default.
- The go doc command supports a new -http flag to start a local documentation server.
- The go version command supports a -json flag to print build information in JSON format.
Standard Library:
- A new experimental encoding/json/v2 package is available, offering performance improvements and new features.

For more information, see the upstream release notes.

Go Toolset is a rolling Application Stream, and Red Hat supports only the latest version. For more information, see the Red Hat Enterprise Linux Application Streams Life Cycle document.