diff --git a/V4.6.4.tar.gz b/V4.6.4.tar.gz
deleted file mode 100644
index e13ebb4..0000000
--- a/V4.6.4.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b619d037f152c8bb1de2433f055c5c78daa3545ebb534bd54684a9da4763e863
-size 2232285
diff --git a/V4.6.6.tar.gz b/V4.6.6.tar.gz
new file mode 100644
index 0000000..f0743e2
--- /dev/null
+++ b/V4.6.6.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7ed70e903082bfa6045e3b2be2f4396cb57d985d59f567ec06ca5b93d894ba42
+size 2233080
diff --git a/libzrtpcpp.changes b/libzrtpcpp.changes
index c300cbe..ebc48ae 100644
--- a/libzrtpcpp.changes
+++ b/libzrtpcpp.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Jul 31 22:31:49 UTC 2017 - jengelh@inai.de
+
+- Update to new maintenance release 4.6.6
+  * Fix a memory leak, extra buffer length checks added.
+- Remove typo.diff (merged)
+
 -------------------------------------------------------------------
 Mon Nov 21 01:15:05 UTC 2016 - jengelh@inai.de
 
diff --git a/libzrtpcpp.spec b/libzrtpcpp.spec
index d0aafe5..c573bff 100644
--- a/libzrtpcpp.spec
+++ b/libzrtpcpp.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libzrtpcpp
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -18,7 +18,7 @@
 
 Name:           libzrtpcpp
 %define lname	libzrtpcpp4
-Version:        4.6.4
+Version:        4.6.6
 Release:        0
 Summary:        A ccrtp extension for ZRTP support
 License:        GPL-3.0+
@@ -28,7 +28,6 @@ Url:            http://www.gnutelephony.org/index.php/GNU_ZRTP
 #Git-Clone:	git://github.com/wernerd/ZRTPCPP
 #Git-Web:	https://github.com/wernerd/ZRTPCPP
 Source:         https://github.com/wernerd/ZRTPCPP/archive/V%version.tar.gz
-Patch1:         typo.diff
 BuildRequires:  cmake
 BuildRequires:  gcc-c++ >= 4.7
 BuildRequires:  pkg-config
@@ -38,20 +37,20 @@ BuildRequires:  pkgconfig(sqlite3) >= 3.7
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
-This library is a GPL licensed extension to the GNU RTP Stack, ccrtp,
-that offers compatibility with Phil Zimmermann's zrtp/Zfone voice
-encryption, and which can be directly embedded into telephony
-applications.
+A library that adds RFC6189-compliant ZRTP support to the GNU ccRTP
+stack and serves as library for other RTP stacks such as PJSIP and
+GStreamer. ZRTP was developed to allow ad-hoc key negotiation to
+setup Secure RTP (SRTP) sessions.
 
 %package -n %lname
 Summary:        A ccrtp extension for ZRTP support
 Group:          System/Libraries
 
 %description -n %lname
-This library is a GPL licensed extension to the GNU RTP Stack, ccrtp,
-that offers compatibility with Phil Zimmermann's zrtp/Zfone voice
-encryption, and which can be directly embedded into telephony
-applications.
+A library that adds RFC6189-compliant ZRTP support to the GNU ccRTP
+stack and serves as library for other RTP stacks such as PJSIP and
+GStreamer. ZRTP was developed to allow ad-hoc key negotiation to
+setup Secure RTP (SRTP) sessions.
 
 %package devel
 Summary:        Headers and link library for libzrtpcpp
@@ -60,12 +59,11 @@ Requires:       %lname = %version
 Requires:       ccrtp-devel >= 2.0.0
 
 %description devel
-This package provides the header files, link libraries, and
-documentation for building applications that use libzrtpcpp.
+This package provides the header files for building applications that
+use libzrtpcpp.
 
 %prep
 %setup -qn ZRTPCPP-%version
-%patch -P 1 -p1
 chmod a-x INSTALL
 
 %build
@@ -94,8 +92,8 @@ pushd build/
 %make_install
 popd
 
-%post   -p /sbin/ldconfig -n %lname
-%postun -p /sbin/ldconfig -n %lname
+%post   -n %lname -p /sbin/ldconfig
+%postun -n %lname -p /sbin/ldconfig
 
 %files -n %lname
 %defattr(-,root,root)
diff --git a/typo.diff b/typo.diff
deleted file mode 100644
index 1ea5438..0000000
--- a/typo.diff
+++ /dev/null
@@ -1,26 +0,0 @@
----
- clients/ccrtp/ZrtpQueue.h |    4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-Index: ZRTPCPP-4.6.4/clients/ccrtp/ZrtpQueue.h
-===================================================================
---- ZRTPCPP-4.6.4.orig/clients/ccrtp/ZrtpQueue.h
-+++ ZRTPCPP-4.6.4/clients/ccrtp/ZrtpQueue.h
-@@ -430,7 +430,7 @@ public:
-      *
-      * @see setMultiStrParams()
-      */
--    DEPRECATED std::string getMultiStrParams() {return getMultiStrParams(NULL); }
-+    DEPRECATED_ZRTP std::string getMultiStrParams() {return getMultiStrParams(NULL); }
- 
-     /**
-      * Set Multi-stream parameters.
-@@ -450,7 +450,7 @@ public:
-      *
-      * @see getMultiStrParams()
-      */
--    DEPRECATED void setMultiStrParams(std::string parameters) { setMultiStrParams(parameters, NULL);}
-+    DEPRECATED_ZRTP void setMultiStrParams(std::string parameters) { setMultiStrParams(parameters, NULL);}
- 
-     /**
-      * Get Multi-stream parameters.