diff --git a/.travis.yml b/.travis.yml
index 548f4af9..b0593be4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,16 +6,11 @@ language: cpp
 
 sudo: false
 
-python: "2.7"
-
-os:
-  - linux
-  - osx
-
 branches:
   only:
     - master
     - develop
+    - /feature\/.*/
 
 env:
   matrix:
@@ -58,7 +53,7 @@ matrix:
             - ubuntu-toolchain-r-test
 
     - os: linux
-      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14
+      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14,1z
       addons:
         apt:
           packages:
@@ -84,11 +79,20 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
 
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
 
     - os: linux
-      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
       addons:
         apt:
           packages:
@@ -98,7 +102,7 @@ matrix:
             - llvm-toolchain-precise-3.5
 
     - os: linux
-      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11
+      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11,14,1z
       addons:
         apt:
           packages:
@@ -108,7 +112,7 @@ matrix:
             - llvm-toolchain-precise-3.6
 
     - os: linux
-      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11
+      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11,14,1z
       addons:
         apt:
           packages:
@@ -137,21 +141,43 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-precise-3.9
 
+    - os: linux
+      compiler: clang++-4.0
+      env: TOOLSET=clang COMPILER=clang++-4.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-4.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-4.0
+
+    - os: linux
+      compiler: clang++-5.0
+      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-5.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-5.0
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
+      osx_image: xcode9.1
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
+      osx_image: xcode9
+
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
       osx_image: xcode8.3
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
-      osx_image: xcode8.2
-
-    - os: osx
-      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
-      osx_image: xcode8.1
-
-    - os: osx
-      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
-      osx_image: xcode8.0
+      osx_image: xcode8
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
@@ -162,8 +188,9 @@ matrix:
       osx_image: xcode6.4
 
 install:
+  - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
   - cd ..
-  - git clone -b $TRAVIS_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+  - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
   - cd boost-root
   - git submodule update --init tools/build
   - git submodule update --init libs/detail