diff --git a/libsigc++-2.99.10.tar.xz b/libsigc++-2.99.10.tar.xz
deleted file mode 100644
index 931b093..0000000
--- a/libsigc++-2.99.10.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:68cdb00e39d6b913d22b0ac362312447c8b4014146b8efd2a9299d9916c72260
-size 950836
diff --git a/libsigc++-2.99.11.tar.xz b/libsigc++-2.99.11.tar.xz
new file mode 100644
index 0000000..5273673
--- /dev/null
+++ b/libsigc++-2.99.11.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:177fb08df33da71780eef2ce4c5991a2b3b6d07d4ad1efbf6ad38f7964e4bb55
+size 951848
diff --git a/libsigc++3.changes b/libsigc++3.changes
index d84e319..50e0082 100644
--- a/libsigc++3.changes
+++ b/libsigc++3.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Tue Apr 10 21:07:35 UTC 2018 - bjorn.lie@gmail.com
+
+- Update to version 2.99.11:
+  + libsigc++-3.0 now requires C++17. Use of C++17:
+    - Use std::apply to simplify implementation.
+    - Use std::invoke to make implementation more generic.
+    - Use constexpr if to simplify implementation.
+  + Build: Require mm-common 0.9.12.
+- Add mm-common BuildRequires: New dependency.
+
 -------------------------------------------------------------------
 Wed Feb 28 16:36:25 UTC 2018 - dimstar@opensuse.org
 
diff --git a/libsigc++3.spec b/libsigc++3.spec
index f32f3d5..b634fe8 100644
--- a/libsigc++3.spec
+++ b/libsigc++3.spec
@@ -18,7 +18,7 @@
 
 %define _name libsigc++
 Name:           libsigc++3
-Version:        2.99.10
+Version:        2.99.11
 Release:        0
 Summary:        Typesafe Signal Framework for C++
 License:        LGPL-3.0-or-later
@@ -27,6 +27,7 @@ URL:            http://libsigc.sourceforge.net/
 Source:         http://download.gnome.org/sources/libsigc++/2.99/%{_name}-%{version}.tar.xz
 Source99:       baselibs.conf
 BuildRequires:  gcc-c++
+BuildRequires:  mm-common >= 0.9.12
 BuildRequires:  pkgconfig
 
 %description