diff --git a/doc/go1.17.html b/doc/go1.17.html
index ea8bc3ccd6..97307bc508 100644
--- a/doc/go1.17.html
+++ b/doc/go1.17.html
@@ -50,6 +50,24 @@ Do not send CLs removing the interior tags from such phrases.
windows/arm64 port). This port supports cgo.
+ The 64-bit MIPS architecture on OpenBSD (the openbsd/mips64
+ port) now supports cgo.
+
+ In Go 1.16, on the 64-bit x86 and 64-bit ARM architectures on
+ OpenBSD (the openbsd/amd64 and openbsd/arm64
+ ports) system calls are made through libc, instead
+ of directly using the machine instructions. In Go 1.17, this is
+ also done on the 32-bit x86 and 32-bit ARM architectures on OpenBSD
+ (the openbsd/386 and openbsd/arm ports).
+ This ensures forward-compatibility with future versions of
+ OpenBSD.
+
TODO: complete the Ports section