into Win32 functions that block for extended periods of time.
</p>
+<p><!-- https://github.com/golang/go/issues/44167-->
+ The garbage collector now includes non-heap sources of garbage collector work
+ (e.g., stack scanning) when determining how frequently to run. As a result,
+ garbage collector overhead is more predictable when these sources are
+ significant. For most applications these changes will be negligible; however,
+ some Go applications may now use less memory and spend more time on garbage
+ collection, or vice versa, than before. The intended workaround is to tweak
+ <code>GOGC</code> where necessary.
+</p>
+
+<p>
+ The runtime now returns memory to the operating system more efficiently and has
+ been tuned to work more aggressively as a result.
+</p>
+
<h2 id="compiler">Compiler</h2>
<p><!-- https://golang.org/issue/40724 -->