Go 1.9 work-in-progress release notes

The next version of Go will improve performance, compilation, and scalability
26 June 2017   1599

an open source project developed by a team at Google and many contributors from the open source community

Go 1.9 is planned to be released in August.

There won't be any radical changes; creators of Go 1.9 are focused on maintaining compatibility in this latest release, so no compatibility issues are expected.

New features:

  • Garbage collector's performance improved and core library is optimized; it will make programs run better;
  • The math/bits package offers optimized implementations to manipulate bits. Functions in this package are treated by the compiler as intrinsics to boost performance.
  • The Go 1.9 compiler supports parallel compilation of functions in a package, leveraging multiple processor cores. Go 1.9 retains the previous versions’ go command’s support for parallel compilation of separate packages. Parallel compilation is on by default but can be disabled. 
  • Type-alias declaration for code repair is now added to Go 1.9 in order to increase scalability. A change to the Go language, type aliases support gradual code repair while moving a type between packages.
  • Transparent monotonic time now supported. This will make computing durations between two "Time" values a safe operation in the presence of wall-clock adjustments.
  • Test helper capabilities improved.
  • New type added. It serves as a concurrent map with amortized-constant-time loads, stores, and deletes.

Official work-in-progress release notes.

Go 1.12 to be Available

Great news for all Go enthuisiast and developers; let's check what's new
28 February 2019   439

Go 1.12 programming language released, which is being developed by Google with the participation of the community as a hybrid solution combining high performance of compiled languages with such advantages of scripting languages as ease of writing code, speed of development and protection from errors. The project code is distributed under the BSD license.

These are main updates:

  • Native TLS 1.3 support. It is not enabled by default, it is necessary to set the option tls13=1 in the environment variable GODEBUG (package crypto / tls).
  • Improved module system support. Developers are preparing to include it by default in version 1.13.
  • Windows support on ARM architecture systems. For example, Go can now be used with Windows 10 IoT Core on Raspberry Pi 3 boards.
  • Improved compatibility with upcoming versions of macOS and iOS. The layer for making specific system calls is the libSystem library.

Get more information at official documents.

Starting with Go 1.13, support for macOS 10.10 "Yosemite" will be discontinued, as the minimum supported version of macOS will be 10.11 "El Capitan". The next release also plans to end support for the FreeBSD 10.x branch.