Forward Compatibility and Toolchain Management in Go 1.21

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<h1 class="small"><a href="/blog/">The Go Blog</a></h1>


<h1>Forward Compatibility and Toolchain Management in Go 1.21</h1>
  
  <p class="author">
  Russ Cox<br>
  14 August 2023
  </p>
  
  <p>Beyond Go 1.21&rsquo;s <a href="compat">expanded commitment to backward compatibility</a>,

Go 1.21 also introduces better forward compatibility for Go code,
meaning that Go 1.21 and later will take better care not to miscompile
code that requires an even newer version of Go.
Specifically, the go line in go.mod now specifies a
minimum required Go toolchain version,
while in previous releases it was a mostly unenforced suggestion.

To make it easier to keep up with these requirements, Go 1.21 also introduces toolchain management, so that different modules can use different Go toolchains just as they can use ...

Get the full details here: Forward Compatibility and Toolchain Management in Go 1.21 - The Go Programming Language