diff --git a/lib/libc/sys/aio_fsync.2 b/lib/libc/sys/aio_fsync.2
--- a/lib/libc/sys/aio_fsync.2
+++ b/lib/libc/sys/aio_fsync.2
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd January 6, 2021
+.Dd November 15, 2023
 .Dt AIO_FSYNC 2
 .Os
 .Sh NAME
@@ -57,11 +57,6 @@
 for the behavior of
 .Xr fdatasync 2 .
 .Pp
-If _POSIX_PRIORITIZED_IO is defined, and the descriptor supports it,
-then the enqueued operation is submitted at a priority equal to that
-of the calling process minus
-.Fa iocb->aio_reqprio .
-.Pp
 The
 .Fa iocb
 pointer may be subsequently used as an argument to
diff --git a/lib/libc/sys/aio_read.2 b/lib/libc/sys/aio_read.2
--- a/lib/libc/sys/aio_read.2
+++ b/lib/libc/sys/aio_read.2
@@ -71,20 +71,6 @@
 structure is defined in
 .Xr readv 2 .
 .Pp
-If _POSIX_PRIORITIZED_IO is defined, and the descriptor supports it,
-then the enqueued operation is submitted at a priority equal to that
-of the calling process minus
-.Fa iocb->aio_reqprio .
-.Pp
-The
-.Fa iocb->aio_lio_opcode
-argument
-is ignored by the
-.Fn aio_read
-and
-.Fn aio_readv
-system calls.
-.Pp
 The
 .Fa iocb
 pointer may be subsequently used as an argument to
diff --git a/lib/libc/sys/aio_write.2 b/lib/libc/sys/aio_write.2
--- a/lib/libc/sys/aio_write.2
+++ b/lib/libc/sys/aio_write.2
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd January 2, 2021
+.Dd November 15, 2023
 .Dt AIO_WRITE 2
 .Os
 .Sh NAME
@@ -84,13 +84,6 @@
 the absolute position from the beginning of the file plus
 .Fa iocb->aio_offset .
 .Pp
-If
-.Dv _POSIX_PRIORITIZED_IO
-is defined, and the descriptor supports it, then the enqueued
-operation is submitted at a priority equal to that of the calling
-process minus
-.Fa iocb->aio_reqprio .
-.Pp
 The
 .Fa iocb
 pointer may be subsequently used as an argument to