diff --git a/CMakeLists.txt b/CMakeLists.txt
index 03462271e9..c64ccc1f81 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1402,7 +1402,7 @@ else()
     # NOTE: the SOVERSION and VERSION MUST be the same as the one generated by libtool! It is NOT the same as the
     # version of the package.
     set_target_properties(
-      libzmq PROPERTIES COMPILE_DEFINITIONS "DLL_EXPORT" PUBLIC_HEADER "${public_headers}" VERSION "5.2.5"
+      libzmq PROPERTIES COMPILE_DEFINITIONS "DLL_EXPORT" PUBLIC_HEADER "${public_headers}" VERSION "5.2.6"
                         SOVERSION "5" OUTPUT_NAME "${ZMQ_OUTPUT_BASENAME}" PREFIX "lib")
     if(ZMQ_BUILD_FRAMEWORK)
       set_target_properties(
diff --git a/configure.ac b/configure.ac
index 622f544d1b..d3f4f0192c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,9 +53,10 @@ AC_SUBST(PACKAGE_VERSION)
 # ZeroMQ version 4.3.3: 7:3:2 (ABI version 5)
 # ZeroMQ version 4.3.4: 7:4:2 (ABI version 5)
 # ZeroMQ version 4.3.5: 7:5:2 (ABI version 5)
+# ZeroMQ version 4.3.6: 7:6:2 (ABI version 5)
 #
 # libzmq -version-info current:revision:age
-LTVER="7:5:2"
+LTVER="7:6:2"
 AC_SUBST(LTVER)
 
 # Take a copy of original flags
diff --git a/include/zmq.h b/include/zmq.h
index 6520b073a0..7b940619f2 100644
--- a/include/zmq.h
+++ b/include/zmq.h
@@ -14,7 +14,7 @@
 /*  Version macros for compile-time API version detection                     */
 #define ZMQ_VERSION_MAJOR 4
 #define ZMQ_VERSION_MINOR 3
-#define ZMQ_VERSION_PATCH 5
+#define ZMQ_VERSION_PATCH 6
 
 #define ZMQ_MAKE_VERSION(major, minor, patch)                                  \
     ((major) *10000 + (minor) *100 + (patch))
diff --git a/packaging/debian/changelog b/packaging/debian/changelog
index 2e7a183293..3bc185ffd6 100644
--- a/packaging/debian/changelog
+++ b/packaging/debian/changelog
@@ -1,4 +1,4 @@
-zeromq (4.3.5-0.1) UNRELEASED; urgency=low
+zeromq (4.3.6-0.1) UNRELEASED; urgency=low
 
   * Initial packaging.
 
diff --git a/packaging/debian/zeromq.dsc b/packaging/debian/zeromq.dsc
index 2b28971367..6b209e8d94 100644
--- a/packaging/debian/zeromq.dsc
+++ b/packaging/debian/zeromq.dsc
@@ -2,7 +2,7 @@ Format: 3.0 (quilt)
 Source: zeromq
 Binary: libzmq5, libzmq3-dev, libzmq5-dbg
 Architecture: any
-Version: 4.3.5-0.1
+Version: 4.3.6-0.1
 Maintainer: libzmq Developers <zeromq-dev@lists.zeromq.org>
 Homepage: http://www.zeromq.org/
 Standards-Version: 3.9.8
diff --git a/packaging/redhat/zeromq.spec b/packaging/redhat/zeromq.spec
index 0c6045854f..9faddbd8a7 100644
--- a/packaging/redhat/zeromq.spec
+++ b/packaging/redhat/zeromq.spec
@@ -10,7 +10,7 @@
 %endif
 %define lib_name libzmq5
 Name:          zeromq
-Version:       4.3.5
+Version:       4.3.6
 Release:       1%{?dist}
 Summary:       The ZeroMQ messaging library
 Group:         Development/Libraries/C and C++