diff --git a/nbdkit.spec b/nbdkit.spec
index f58dfe7..8a2df7b 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -10,8 +10,8 @@
 %endif
 
 Name:           nbdkit
-Version:        1.1.27
-Release:        2%{?dist}
+Version:        1.1.28
+Release:        1%{?dist}
 Summary:        NBD server
 
 License:        BSD
@@ -313,17 +313,25 @@ Requires:       %{name}%{?_isa} = %{version}-%{release}
 This package contains some basic filters for %{name} which have only
 trivial dependencies.
 
+* nbdkit-cache-filter
+
+  Server-side cache.
+
+* nbdkig-cow-filter
+
+  Copy-on-write overlay for read-only plugins.
+
 * nbdkit-delay-filter
 
-  Inject read and write delays
+  Inject read and write delays.
 
 * nbdkit-offset-filter
 
-  Serve an offset and range
+  Serve an offset and range.
 
 * nbdkit-partition-filter
 
-  Serve a single partition
+  Serve a single partition.
 
 
 %package devel
@@ -575,9 +583,13 @@ popd
 %files basic-filters
 %doc README
 %license LICENSE
+%{_libdir}/%{name}/filters/nbdkit-cache-filter.so
+%{_libdir}/%{name}/filters/nbdkit-cow-filter.so
 %{_libdir}/%{name}/filters/nbdkit-delay-filter.so
 %{_libdir}/%{name}/filters/nbdkit-offset-filter.so
 %{_libdir}/%{name}/filters/nbdkit-partition-filter.so
+%{_mandir}/man1/nbdkit-cache-filter.1*
+%{_mandir}/man1/nbdkit-cow-filter.1*
 %{_mandir}/man1/nbdkit-delay-filter.1*
 %{_mandir}/man1/nbdkit-offset-filter.1*
 %{_mandir}/man1/nbdkit-partition-filter.1*
@@ -601,6 +613,10 @@ popd
 
 
 %changelog
+* Mon Jan 22 2018 Richard W.M. Jones <rjones@redhat.com> - 1.1.28-1
+- New upstream version 1.1.28.
+- Add two new filters to nbdkit-basic-filters.
+
 * Sat Jan 20 2018 Björn Esser <besser82@fedoraproject.org> - 1.1.27-2
 - Rebuilt for switch to libxcrypt
 
diff --git a/sources b/sources
index 74a9299..d88f2b0 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nbdkit-1.1.27.tar.gz) = 3d5325cbf3e8099bad6a6ae542af266223d82b9f6a86ed486e2aec4ecbc31514cc612ae030f9b667c122fe24e5a73de281cb60af2640112629d830c386e41548
+SHA512 (nbdkit-1.1.28.tar.gz) = cbf40dffc773575a69d20edc42570bf63bd5f189ec0a3c4beeca7fca518ec969b94a15fdc834762f322c99145a95a015f5aad60edb078ba98c7b805583218fef