diff --git a/nbdkit.spec b/nbdkit.spec
index 28692ff..958b6d0 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -45,8 +45,8 @@ ExclusiveArch:  x86_64
 %global source_directory 1.23-development
 
 Name:           nbdkit
-Version:        1.23.9
-Release:        2%{?dist}
+Version:        1.23.10
+Release:        1%{?dist}
 Summary:        NBD server
 
 License:        BSD
@@ -202,6 +202,7 @@ Provides:       %{name}-pattern-plugin = %{version}-%{release}
 Provides:       %{name}-partitioning-plugin = %{version}-%{release}
 Provides:       %{name}-random-plugin = %{version}-%{release}
 Provides:       %{name}-sh-plugin = %{version}-%{release}
+Provides:       %{name}-sparse-random-plugin = %{version}-%{release}
 Provides:       %{name}-split-plugin = %{version}-%{release}
 Provides:       %{name}-streaming-plugin = %{version}-%{release}
 Provides:       %{name}-zero-plugin = %{version}-%{release}
@@ -212,37 +213,39 @@ This package contains plugins for %{name} which only depend on simple
 C libraries: glibc, gnutls, libzstd.  Other plugins for nbdkit with
 more complex dependencies are packaged separately.
 
-nbdkit-data-plugin         Serve small amounts of data from the command line.
+nbdkit-data-plugin          Serve small amounts of data from the command line.
 
-nbdkit-eval-plugin         Write a shell script plugin on the command line.
+nbdkit-eval-plugin          Write a shell script plugin on the command line.
 
-nbdkit-file-plugin         The normal file plugin for serving files.
+nbdkit-file-plugin          The normal file plugin for serving files.
 
-nbdkit-floppy-plugin       Create a virtual floppy disk from a directory.
+nbdkit-floppy-plugin        Create a virtual floppy disk from a directory.
 
-nbdkit-full-plugin         A virtual disk that returns ENOSPC errors.
+nbdkit-full-plugin          A virtual disk that returns ENOSPC errors.
 
-nbdkit-info-plugin         Serve client and server information.
+nbdkit-info-plugin          Serve client and server information.
 
-nbdkit-memory-plugin       A virtual memory plugin.
+nbdkit-memory-plugin        A virtual memory plugin.
 
-nbdkit-null-plugin         A null (bitbucket) plugin.
+nbdkit-null-plugin          A null (bitbucket) plugin.
 
-nbdkit-ondemand-plugin     Create filesystems on demand.
+nbdkit-ondemand-plugin      Create filesystems on demand.
 
-nbdkit-pattern-plugin      Fixed test pattern.
+nbdkit-pattern-plugin       Fixed test pattern.
 
-nbdkit-partitioning-plugin Create virtual disks from partitions.
+nbdkit-partitioning-plugin  Create virtual disks from partitions.
 
-nbdkit-random-plugin       Random content plugin for testing.
+nbdkit-random-plugin        Random content plugin for testing.
 
-nbdkit-sh-plugin           Write plugins as shell scripts or executables.
+nbdkit-sh-plugin            Write plugins as shell scripts or executables.
 
-nbdkit-split-plugin        Concatenate one or more files.
+nbdkit-sparse-random-plugin Make sparse random disks.
 
-nbdkit-streaming-plugin    A streaming file serving plugin.
+nbdkit-split-plugin         Concatenate one or more files.
 
-nbdkit-zero-plugin         Zero-length plugin for testing.
+nbdkit-streaming-plugin     A streaming file serving plugin.
+
+nbdkit-zero-plugin          Zero-length plugin for testing.
 
 
 %package example-plugins
@@ -904,6 +907,7 @@ export LIBGUESTFS_TRACE=1
 %{_libdir}/%{name}/plugins/nbdkit-pattern-plugin.so
 %{_libdir}/%{name}/plugins/nbdkit-random-plugin.so
 %{_libdir}/%{name}/plugins/nbdkit-sh-plugin.so
+%{_libdir}/%{name}/plugins/nbdkit-sparse-random-plugin.so
 %{_libdir}/%{name}/plugins/nbdkit-split-plugin.so
 %{_libdir}/%{name}/plugins/nbdkit-streaming-plugin.so
 %{_libdir}/%{name}/plugins/nbdkit-zero-plugin.so
@@ -920,6 +924,7 @@ export LIBGUESTFS_TRACE=1
 %{_mandir}/man1/nbdkit-pattern-plugin.1*
 %{_mandir}/man1/nbdkit-random-plugin.1*
 %{_mandir}/man3/nbdkit-sh-plugin.3*
+%{_mandir}/man1/nbdkit-sparse-random-plugin.1*
 %{_mandir}/man1/nbdkit-split-plugin.1*
 %{_mandir}/man1/nbdkit-streaming-plugin.1*
 %{_mandir}/man1/nbdkit-zero-plugin.1*
@@ -1253,6 +1258,10 @@ export LIBGUESTFS_TRACE=1
 
 
 %changelog
+* Tue Dec 08 2020 Richard W.M. Jones <rjones@redhat.com> - 1.23.10-1
+- New upstream development version 1.23.10.
+- New nbdkit-sparse-random-plugin.
+
 * Thu Dec 03 2020 Richard W.M. Jones <rjones@redhat.com> - 1.23.9-2
 - Move gzip and tar filters with other filters.
 - Remove nbdkit-tar-plugin (replaced with nbdkit-tar-filter), except RHEL 8.