diff --git a/CMakeLists.txt b/CMakeLists.txt
index d84e0bc62..3f34424bf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,8 +3,8 @@
 #                         Stefan Eilemann <eile@eyescale.ch>
 
 cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
-project(Collage VERSION 1.4.0)
-set(Collage_VERSION_ABI 4)
+project(Collage VERSION 1.5.0)
+set(Collage_VERSION_ABI 5)
 
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake
   ${CMAKE_SOURCE_DIR}/CMake/common)
diff --git a/doc/Changelog.md b/doc/Changelog.md
index 1e0452d32..7f7e998e3 100644
--- a/doc/Changelog.md
+++ b/doc/Changelog.md
@@ -1,6 +1,12 @@
 # Changelog {#Changelog}
 
-# git master
+# Release 1.5 (30-Jul-2016)
+
+* [188](https://github.com/Eyescale/Collage/pull/188)
+  Improved robustness in RDMA connection estalishment to account for variations
+  of behaviour in librdmacm.
+* [186](https://github.com/Eyescale/Collage/pull/186)
+  Obsolete SDP connection removed.
 
 # Release 1.4 (11-Mar-2016)