The new <a href="/pkg/go/version/"><code>go/version</code></a> package implements functions
  for validating and comparing Go version strings.
</p>

<h3 id="enhanced_routing_patterns">Enhanced routing patterns</h3>

<p><!-- https://go.dev/issue/61410 -->
  HTTP routing in the standard library is now more expressive.

</pre>

<p>
Implementation restriction: A compiler may use rounding while
computing untyped floating-point or complex constant expressions; see
the implementation restriction in the section
on <a href="#Constants">constants</a>.  This rounding may cause a
floating-point constant expression to be invalid in an integer
context, even if it would be integral when calculated using infinite
precision, and vice versa.
</p>

from the value obtained by executing and rounding the instructions individually.
An explicit floating-point type <a href="#Conversions">conversion</a> rounds to
the precision of the target type, preventing fusion that would discard that rounding.
</p>

<p>
For instance, some architectures provide a "fused multiply and add" (FMA) instruction
that computes <code>x*y + z</code> without rounding the intermediate result <code>x*y</code>.