diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 0)
 define(_CLIENT_VERSION_MINOR, 18)
-define(_CLIENT_VERSION_REVISION, 5)
+define(_CLIENT_VERSION_REVISION, 6)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2018)
diff --git a/doc/Doxyfile b/doc/Doxyfile
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -38,7 +38,7 @@
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.18.5
+PROJECT_NUMBER         = 0.18.6
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/release-notes.md b/doc/release-notes.md
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -1,9 +1,5 @@
-Bitcoin ABC version 0.18.5 is now available from:
+Bitcoin ABC version 0.18.6 is now available from:
 
-  <https://download.bitcoinabc.org/0.18.5/>
+  <https://download.bitcoinabc.org/0.18.6/>
 
 This release includes the following features and fixes:
- - Add the finalized block concept. Finalized blocks cannot be reorged, which protects the network against deep reorgs.
- - Add the `-maxreorgdepth` configuration to configure at what depth block are considered final. Default is 10. Use -1 to disable.
- - Introduce `finalizeblock` RPC to finalize a block at the will of the node operator.
- - Introduce a penalty to alternative chains based on the depth of the fork. This makes it harder for an attacker to do mid size reorg.
diff --git a/doc/release-notes.md b/doc/release-notes/release-notes-0.18.5.md
copy from doc/release-notes.md
copy to doc/release-notes/release-notes-0.18.5.md
diff --git a/src/clientversion.h b/src/clientversion.h
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -18,7 +18,7 @@
 //! requires it
 #define CLIENT_VERSION_MAJOR 0
 #define CLIENT_VERSION_MINOR 18
-#define CLIENT_VERSION_REVISION 5
+#define CLIENT_VERSION_REVISION 6
 #define CLIENT_VERSION_BUILD 0
 
 //! Set to true for release, false for prerelease or test build
diff --git a/src/config/CMakeLists.txt b/src/config/CMakeLists.txt
--- a/src/config/CMakeLists.txt
+++ b/src/config/CMakeLists.txt
@@ -13,7 +13,7 @@
 # Version
 set(CLIENT_VERSION_MAJOR 0)
 set(CLIENT_VERSION_MINOR 18)
-set(CLIENT_VERSION_REVISION 5)
+set(CLIENT_VERSION_REVISION 6)
 set(CLIENT_VERSION_BUILD 0)
 
 option(CLIENT_VERSION_IS_RELEASE "Build a release version" OFF)
diff --git a/src/test/net_tests.cpp b/src/test/net_tests.cpp
--- a/src/test/net_tests.cpp
+++ b/src/test/net_tests.cpp
@@ -198,7 +198,7 @@
 
     BOOST_CHECK_EQUAL(userAgent(config).size(), MAX_SUBVERSION_LENGTH);
     BOOST_CHECK_EQUAL(userAgent(config),
-                      "/Bitcoin ABC:0.18.5(EB8.0; very very very very very "
+                      "/Bitcoin ABC:0.18.6(EB8.0; very very very very very "
                       "very very very very very very very very very very very "
                       "very very very very very very very very very very very "
                       "very very very very very very very very very very very "