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	diff --git a/lib/libc/gen/daemon.3 b/lib/libc/gen/daemon.3
	--- a/lib/libc/gen/daemon.3
	+++ b/lib/libc/gen/daemon.3
	@@ -25,7 +25,7 @@
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.
	.\"
	-.Dd February 27, 2023
	+.Dd June 1, 2026
	.Dt DAEMON 3
	.Os
	.Sh NAME
	@@ -44,6 +44,13 @@
	.Fn daemon
	function is for programs wishing to detach themselves from the
	controlling terminal and run in the background as system daemons.
	+The
	+.Xr fork 2
	+system call is used; see
	+.Sx CAVEATS
	+below about the environment after a
	+.Fn fork
	+.Pq without a corresponding call to one of the exec routines .
	.Pp
	If the argument
	.Fa nochdir
	@@ -89,7 +96,7 @@
	function may fail and set
	.Va errno
	for any of the errors specified for the library functions
	-.Xr fork 2
	+.Xr fork 2 ,
	.Xr open 2 ,
	and
	.Xr setsid 2 .
	@@ -107,6 +114,21 @@
	function first appeared in
	.Fx 12.0 .
	.Sh CAVEATS
	+In multithreaded programs, the child process after
	+.Fn fork
	+inherits copies of all mutexes and other synchronization state, but only the
	+calling thread survives.
	+Any locks held by other threads at the time of the call will remain permanently
	+acquired in the child, causing deadlocks in any code that attempts to
	+acquire them.
	+Until one of the
	+.Xr exec 3
	+functions is called, the child should restrict itself to async-signal safe
	+operations
	+.Po see
	+.Xr sigaction 2
	+.Pc .
	+.Pp
	Unless the
	.Fa noclose
	argument is non-zero,