diff --git a/lib/libkvm/kvm.3 b/lib/libkvm/kvm.3
index fbddcd475cc8..45e095ede2b6 100644
--- a/lib/libkvm/kvm.3
+++ b/lib/libkvm/kvm.3
@@ -161,3 +161,12 @@ and
 .Xr sysctl 3 ,
 .Xr kmem 4 ,
 .Xr mem 4
+.Sh HISTORY
+The
+.Fn kvm_native ,
+.Fn kvm_nlist2 ,
+.Fn kvm_open2 ,
+and
+.Fn kvm_read2
+functions first appeared in
+.Fx 11.0 .
diff --git a/lib/libkvm/kvm_nlist.3 b/lib/libkvm/kvm_nlist.3
index c9b870e13e75..31e1c15e9cd9 100644
--- a/lib/libkvm/kvm_nlist.3
+++ b/lib/libkvm/kvm_nlist.3
@@ -116,3 +116,8 @@ If the kernel symbol table was unreadable, -1 is returned.
 .Xr kvm_openfiles 3 ,
 .Xr kvm_read 3 ,
 .Xr kvm_write 3
+.Sh HISTORY
+The
+.Fn kvm_nlist2
+function first appeared in
+.Fx 11.0 .
diff --git a/lib/libkvm/kvm_open.3 b/lib/libkvm/kvm_open.3
index f66e7af10efd..2b4a784447dd 100644
--- a/lib/libkvm/kvm_open.3
+++ b/lib/libkvm/kvm_open.3
@@ -269,3 +269,8 @@ of the Sun library and the desire to have a backward-compatible library
 for
 .Bx
 left little choice.
+.Sh HISTORY
+The
+.Fn kvm_open2
+function first appeared in
+.Fx 11.0 .
diff --git a/lib/libkvm/kvm_read.3 b/lib/libkvm/kvm_read.3
index 19a1aafea780..83870a24d188 100644
--- a/lib/libkvm/kvm_read.3
+++ b/lib/libkvm/kvm_read.3
@@ -104,3 +104,8 @@ Otherwise, -1 is returned.
 .Xr kvm_nlist 3 ,
 .Xr kvm_open 3 ,
 .Xr kvm_openfiles 3
+.Sh HISTORY
+The
+.Fn kvm_read2
+function first appeared in
+.Fx 11.0 .