diff --git a/nbdkit.spec b/nbdkit.spec
index b0c468a..bd3cf3d 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -42,7 +42,7 @@ ExclusiveArch:  x86_64
 %global source_directory 1.21-development
 
 Name:           nbdkit
-Version:        1.21.23
+Version:        1.21.24
 Release:        1%{?dist}
 Summary:        NBD server
 
@@ -528,6 +528,7 @@ Provides:       %{name}-readahead-filter = %{version}-%{release}
 Provides:       %{name}-retry-filter = %{version}-%{release}
 Provides:       %{name}-stats-filter = %{version}-%{release}
 Provides:       %{name}-swab-filter = %{version}-%{release}
+Provides:       %{name}-tls-fallback-filter = %{version}-%{release}
 Provides:       %{name}-truncate-filter = %{version}-%{release}
 
 
@@ -588,6 +589,8 @@ nbdkit-stats-filter        Display statistics about operations.
 
 nbdkit-swab-filter         Filter for swapping byte order.
 
+nbdkit-tls-fallback-filter TLS protection filter.
+
 nbdkit-truncate-filter     Truncate, expand, round up or round down size.
 
 
@@ -989,6 +992,7 @@ export LIBGUESTFS_TRACE=1
 %{_libdir}/%{name}/filters/nbdkit-retry-filter.so
 %{_libdir}/%{name}/filters/nbdkit-stats-filter.so
 %{_libdir}/%{name}/filters/nbdkit-swab-filter.so
+%{_libdir}/%{name}/filters/nbdkit-tls-fallback-filter.so
 %{_libdir}/%{name}/filters/nbdkit-truncate-filter.so
 %{_mandir}/man1/nbdkit-blocksize-filter.1*
 %{_mandir}/man1/nbdkit-cache-filter.1*
@@ -1016,6 +1020,7 @@ export LIBGUESTFS_TRACE=1
 %{_mandir}/man1/nbdkit-retry-filter.1*
 %{_mandir}/man1/nbdkit-stats-filter.1*
 %{_mandir}/man1/nbdkit-swab-filter.1*
+%{_mandir}/man1/nbdkit-tls-fallback-filter.1*
 %{_mandir}/man1/nbdkit-truncate-filter.1*
 
 
@@ -1066,8 +1071,12 @@ export LIBGUESTFS_TRACE=1
 
 
 %changelog
+* Tue Aug 11 2020 Richard W.M. Jones <rjones@redhat.com> - 1.21.24-1
+- New upstream version 1.21.24.
+- Add nbdkit-tls-fallback-filter.
+
 * Mon Aug 10 2020 Merlin Mathesius <mmathesi@redhat.com> - 1.21.23-1
-- Use ExclusiveArch: %%{kernel_arches}
+- Enable libguestfs tests only on %%{kernel_arches}
 
 * Sat Aug  8 2020 Richard W.M. Jones <rjones@redhat.com> - 1.21.23-1
 - New upstream version 1.21.23.
diff --git a/sources b/sources
index 0252bf3..2747082 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (nbdkit-1.21.23.tar.gz) = 387ebcbee7e3ab51a5b8af0ec21ffea9c2ef515f20c6225060ade99144c7114e72cf3dffae31c1195c4e672559136a01e25aa0814a061267cbc79226576e55ab
-SHA512 (nbdkit-1.21.23.tar.gz.sig) = 0bf6f308511bd8a117483fceb2f1a92bd164f21989adc76d8c0b01f2ec2956325c26ba61f6f26b37ed7a8b5aecbc1903034feaacbae67b49e84e8f74a220ec71
+SHA512 (nbdkit-1.21.24.tar.gz) = 3b3def9f2efd61f487b70a4cf88b98f1f2eaddf74c97716f5853341c6421230db21ada6bdcf013cf5240d9a5beefbee241ef97e0eb8060d0ae6b703ea70068a3
+SHA512 (nbdkit-1.21.24.tar.gz.sig) = 892679f93627866990d69b1d1eec1ad5e23664f85a4c992b32c663bab477de185fa01e57078ea24eec81caf7bdaa525b786fc699b568cb591642d86bac680237