Go 1.15, the 15th major version of the Go
programming language, is due out on
August 1. It will be a release with fewer changes than usual, but many of
the major changes are behind-the-scenes or in the tooling: for example,
there is a
new linker, which will speed up build times and reduce the size of
binaries.
In addition, there are performance improvements to the language’s runtime,
changes to the architectures supported, and
some updates to the standard library. Overall, it should be a solid
upgrade for the language.

Source: LWN.net – [$] What’s coming in Go 1.15