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Golang 1.12

Fedora 30 provides Golang version 1.12, up from version 1.11 in Fedora 29. Notable changes include:

New features

  • The race detector is now supported on 64-bit ARM systems (linux/arm64).

  • The go command now supports module-aware operations outside a module directory when GO111MODULE is set to on.

  • The compiler now has improved live variable analysis.

  • godoc now supports the -all flag (prints all exported APIs and their documentation) and the -src flag (shows the target’s source code).

  • trace now supports plotting mutator utilization curves.

  • Sweeping performance is significantly improved when a large fraction of the heap remains live

  • Added opt-in support for TLS 1.3 in the crypto/tls package


  • The go tool vet command is no longer supported. Use go vet instead from now on.

  • Version 1.12 is the last one that supports binary-only packages.

  • godoc no longer has a command line interface and is only a web server

For full information about this release, see the upstream release notes.