diff --git a/0001-virt-df-parallel-Compile-debugging-messages-in-alway.patch b/0001-virt-df-parallel-Compile-debugging-messages-in-alway.patch
deleted file mode 100644
index 53964d8..0000000
--- a/0001-virt-df-parallel-Compile-debugging-messages-in-alway.patch
+++ /dev/null
@@ -1,108 +0,0 @@
-From 67b9469754684bc0c79fffab7bbca9f6ffee84f0 Mon Sep 17 00:00:00 2001
-From: "Richard W.M. Jones" <rjones@redhat.com>
-Date: Tue, 3 Sep 2013 12:44:25 +0100
-Subject: [PATCH] virt-df: parallel: Compile debugging messages in always.
-
-Enable debugging messages whenever LIBGUESTFS_DEBUG=1 / -v option, so
-that we can track down possible race condition seen in Koji.
----
- df/parallel.c | 27 +++++++++++++++++++--------
- 1 file changed, 19 insertions(+), 8 deletions(-)
-
-diff --git a/df/parallel.c b/df/parallel.c
-index a06e370..1f56beb 100644
---- a/df/parallel.c
-+++ b/df/parallel.c
-@@ -42,8 +42,6 @@
- 
- #if defined(HAVE_LIBVIRT)
- 
--#define DEBUG_PARALLEL 0
--
- /* Maximum number of threads we would ever run.  Note this should not
-  * be > 20, unless libvirt is modified to increase the maximum number
-  * of clients.
-@@ -70,6 +68,7 @@ static void thread_failure (const char *fn, int err);
- static void *worker_thread (void *arg);
- 
- struct thread_data {
-+  size_t thread_num;            /* Thread number. */
-   int trace, verbose;           /* Flags from the options_handle. */
-   work_fn work;
-   int r;                        /* Used to store the error status. */
-@@ -96,6 +95,7 @@ start_threads (size_t option_P, guestfs_h *options_handle, work_fn work)
-   pthread_t threads[nr_threads];
- 
-   for (i = 0; i < nr_threads; ++i) {
-+    thread_data[i].thread_num = i;
-     if (options_handle) {
-       thread_data[i].trace = guestfs_get_trace (options_handle);
-       thread_data[i].verbose = guestfs_get_verbose (options_handle);
-@@ -137,6 +137,9 @@ worker_thread (void *thread_data_vp)
- 
-   thread_data->r = 0;
- 
-+  if (thread_data->verbose)
-+    printf ("thread %zu starting\n", thread_data->thread_num);
-+
-   while (1) {
-     size_t i;               /* The current domain we're working on. */
-     FILE *fp;
-@@ -146,6 +149,9 @@ worker_thread (void *thread_data_vp)
-     int err;
- 
-     /* Take the next domain from the list. */
-+    if (thread_data->verbose)
-+      printf ("thread %zu waiting to get work\n", thread_data->thread_num);
-+
-     err = pthread_mutex_lock (&take_mutex);
-     if (err != 0) {
-       thread_failure ("pthread_mutex_lock", err);
-@@ -163,8 +169,8 @@ worker_thread (void *thread_data_vp)
-     if (i >= nr_domains)        /* Work finished. */
-       break;
- 
--    if (DEBUG_PARALLEL)
--      printf ("thread taking domain %zu\n", i);
-+    if (thread_data->verbose)
-+      printf ("thread %zu taking domain %zu\n", thread_data->thread_num, i);
- 
-     fp = open_memstream (&output, &output_len);
-     if (fp == NULL) {
-@@ -195,6 +201,10 @@ worker_thread (void *thread_data_vp)
-     /* Retire this domain.  We have to retire domains in order, which
-      * may mean waiting for another thread to finish here.
-      */
-+    if (thread_data->verbose)
-+      printf ("thread %zu waiting to retire domain %zu\n",
-+              thread_data->thread_num, i);
-+
-     err = pthread_mutex_lock (&retire_mutex);
-     if (err != 0) {
-       thread_failure ("pthread_mutex_lock", err);
-@@ -210,8 +220,8 @@ worker_thread (void *thread_data_vp)
-       }
-     }
- 
--    if (DEBUG_PARALLEL)
--      printf ("thread retiring domain %zu\n", i);
-+    if (thread_data->verbose)
-+      printf ("thread %zu retiring domain %zu\n", thread_data->thread_num, i);
- 
-     /* Retire domain. */
-     printf ("%s", output);
-@@ -227,8 +237,9 @@ worker_thread (void *thread_data_vp)
-     }
-   }
- 
--  if (DEBUG_PARALLEL)
--    printf ("thread exiting\n");
-+  if (thread_data->verbose)
-+    printf ("thread %zu exiting (r = %d)\n",
-+            thread_data->thread_num, thread_data->r);
- 
-   return &thread_data->r;
- }
--- 
-1.8.3.1
-
diff --git a/libguestfs.spec b/libguestfs.spec
index 8e72936..851fca2 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -11,16 +11,14 @@
 Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
-Version:       1.23.20
-Release:       5%{?dist}
+Version:       1.23.21
+Release:       1%{?dist}
 License:       LGPLv2+
 
 # Source and patches.
 URL:           http://libguestfs.org/
 Source0:       http://libguestfs.org/download/1.23-development/%{name}-%{version}.tar.gz
 
-Patch1:        0001-virt-df-parallel-Compile-debugging-messages-in-alway.patch
-
 # Basic build requirements:
 BuildRequires: perl(Pod::Simple)
 BuildRequires: perl(Pod::Man)
@@ -560,8 +558,6 @@ for %{name}.
 %prep
 %setup -q
 
-%patch1 -p1
-
 if [ "$(getenforce | tr '[A-Z]' '[a-z]')" != "disabled" ]; then
     # For sVirt to work, the local temporary directory we use in the
     # tests must be labelled the same way as /tmp.
@@ -951,6 +947,10 @@ mkdir -p $RPM_BUILD_ROOT%{_localstatedir}/run/libguestfs
 
 
 %changelog
+* Sat Sep  7 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.23.21-1
+- New upstream version 1.23.21.
+- Remove patches which are now upstream.
+
 * Tue Sep  3 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.23.20-5
 - Enable debugging messages in parallel virt-alignment-scan, virt-df
   in order to debug possible race condition seen in Koji.
diff --git a/sources b/sources
index 5008216..f7146a3 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-fb55ba306c1d2afcee3cd83295b410f4  libguestfs-1.23.20.tar.gz
+27f034e8d1026cd90e1e06e961612524  libguestfs-1.23.21.tar.gz