diff --git a/.jenkins.d/01-ndn-cxx.sh b/.jenkins.d/01-ndn-cxx.sh
index c9e2a63..e627627 100755
--- a/.jenkins.d/01-ndn-cxx.sh
+++ b/.jenkins.d/01-ndn-cxx.sh
@@ -37,14 +37,14 @@
 
 sudo rm -f /usr/local/bin/ndnsec*
 sudo rm -fr /usr/local/include/ndn-cxx
-sudo rm -f /usr/local/lib/libndn-cxx*
-sudo rm -f /usr/local/lib/pkgconfig/libndn-cxx.pc
+sudo rm -f /usr/local/lib{,64}/libndn-cxx*
+sudo rm -f /usr/local/lib{,64}/pkgconfig/libndn-cxx.pc
 
 pushd ndn-cxx >/dev/null
 
 ./waf configure --color=yes --enable-shared --disable-static --without-osx-keychain
 ./waf build --color=yes -j${WAF_JOBS:-1}
-sudo env "PATH=$PATH" ./waf install --color=yes
+sudo_preserve_env PATH -- ./waf install --color=yes
 
 popd >/dev/null
 popd >/dev/null
diff --git a/.jenkins.d/10-build.sh b/.jenkins.d/10-build.sh
index 9ee5a78..8907de1 100755
--- a/.jenkins.d/10-build.sh
+++ b/.jenkins.d/10-build.sh
@@ -6,8 +6,14 @@
 
 set -x
 
+if [[ $JOB_NAME == *"code-coverage" ]]; then
+    COVERAGE="--with-coverage"
+elif [[ -z $DISABLE_ASAN ]]; then
+    ASAN="--with-sanitizer=address"
+fi
+
 # Cleanup
-sudo env "PATH=$PATH" ./waf --color=yes distclean
+sudo_preserve_env PATH -- ./waf --color=yes distclean
 
 if [[ $JOB_NAME != *"code-coverage" && $JOB_NAME != *"limited-build" ]]; then
   # Configure/build in optimized mode with tests
@@ -15,29 +21,24 @@
   ./waf --color=yes build -j${WAF_JOBS:-1}
 
   # Cleanup
-  sudo env "PATH=$PATH" ./waf --color=yes distclean
+  sudo_preserve_env PATH -- ./waf --color=yes distclean
 
   # Configure/build in optimized mode without tests
   ./waf --color=yes configure
   ./waf --color=yes build -j${WAF_JOBS:-1}
 
   # Cleanup
-  sudo env "PATH=$PATH" ./waf --color=yes distclean
+  sudo_preserve_env PATH -- ./waf --color=yes distclean
 fi
 
 # Configure/build in debug mode with tests
-if [[ $JOB_NAME == *"code-coverage" ]]; then
-    COVERAGE="--with-coverage"
-elif [[ -n $BUILD_WITH_ASAN || -z $TRAVIS ]]; then
-    ASAN="--with-sanitizer=address"
-fi
-./waf --color=yes configure --debug --with-tests $COVERAGE $ASAN
+./waf --color=yes configure --debug --with-tests $ASAN $COVERAGE
 ./waf --color=yes build -j${WAF_JOBS:-1}
 
 # (tests will be run against debug version)
 
 # Install
-sudo env "PATH=$PATH" ./waf --color=yes install
+sudo_preserve_env PATH -- ./waf --color=yes install
 
 if has Linux $NODE_LABELS; then
     sudo ldconfig
diff --git a/.jenkins.d/20-tests.sh b/.jenkins.d/20-tests.sh
index f2ade1e..e9c1c85 100755
--- a/.jenkins.d/20-tests.sh
+++ b/.jenkins.d/20-tests.sh
@@ -41,8 +41,8 @@
 ASAN_OPTIONS+=":strip_path_prefix=${PWD}/"
 export ASAN_OPTIONS
 
-export BOOST_TEST_COLOR_OUTPUT="yes"
-export NDN_LOG="*=DEBUG"
+export BOOST_TEST_BUILD_INFO=1
+export BOOST_TEST_COLOR_OUTPUT=1
 
 # Run unit tests
 ./build/unit-tests $(ut_log_args)
diff --git a/.jenkins.d/README.md b/.jenkins.d/README.md
index 39fa40b..5813349 100644
--- a/.jenkins.d/README.md
+++ b/.jenkins.d/README.md
@@ -27,7 +27,7 @@
   Possible values:
 
   * empty: default build process
-  * `code-coverage` (Linux OS is assumed): debug build with tests and code coverage analysis
+  * `code-coverage` (Ubuntu Linux is assumed): debug build with tests and code coverage analysis
   * `limited-build`: only a single debug build with tests
 
 - `CACHE_DIR`: the variable defines a path to folder containing cached files from previous builds,
diff --git a/.jenkins.d/util.sh b/.jenkins.d/util.sh
index a89bc27..8ddc4ba 100644
--- a/.jenkins.d/util.sh
+++ b/.jenkins.d/util.sh
@@ -16,3 +16,22 @@
     set ${saved_xtrace}
     return ${ret}
 }
+
+sudo_preserve_env() {
+    local saved_xtrace
+    [[ $- == *x* ]] && saved_xtrace=-x || saved_xtrace=+x
+    set +x
+
+    local vars=()
+    while [[ $# -gt 0 ]]; do
+        local arg=$1
+        shift
+        case ${arg} in
+            --) break ;;
+            *)  vars+=("${arg}=${!arg}") ;;
+        esac
+    done
+
+    set ${saved_xtrace}
+    sudo env "${vars[@]}" "$@"
+}
diff --git a/.travis.yml b/.travis.yml
index 984e8ac..47579e9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: cpp
 dist: xenial
-sudo: required
 env:
   global:
     - JOB_NAME=limited-build
@@ -22,12 +21,6 @@
     # Linux/clang
     # https://apt.llvm.org/
     - os: linux
-      env: COMPILER=clang++-3.5
-    - os: linux
-      env: COMPILER=clang++-3.6
-    - os: linux
-      env: COMPILER=clang++-3.7 DISABLE_ASAN=yes
-    - os: linux
       env: COMPILER=clang++-3.8
     - os: linux
       env: COMPILER=clang++-3.9
@@ -37,40 +30,43 @@
       env: COMPILER=clang++-5.0
     - os: linux
       env: COMPILER=clang++-6.0
+    # temporarily disable AddressSanitizer on clang-7 and later
+    # due to https://bugs.llvm.org/show_bug.cgi?id=40808
     - os: linux
-      env: COMPILER=clang++-7
+      env: COMPILER=clang++-7 DISABLE_ASAN=yes
+    - os: linux
+      env: COMPILER=clang++-8 DISABLE_ASAN=yes
+    - os: linux
+      env: COMPILER=clang++-9 DISABLE_ASAN=yes
 
     # macOS/clang
-    # https://docs.travis-ci.com/user/reference/osx/#OS-X-Version
-    - os: osx
-      osx_image: xcode7.3
-      env: OSX_VERSION=10.11
+    # https://docs.travis-ci.com/user/reference/osx/#macos-version
     - os: osx
       osx_image: xcode8.3
       env: OSX_VERSION=10.12
     - os: osx
-      osx_image: xcode9.3
+      osx_image: xcode9.2
+      env: OSX_VERSION=10.12
+    - os: osx
+      osx_image: xcode9.4
       env: OSX_VERSION=10.13
+    - os: osx
+      osx_image: xcode10.1
+      env: OSX_VERSION=10.13
+    - os: osx
+      osx_image: xcode10.2
+      env: OSX_VERSION=10.14
 
   allow_failures:
-    - env: COMPILER=g++-6
-    - env: COMPILER=g++-7
-    - env: COMPILER=g++-8
-    - env: COMPILER=clang++-3.5
-    - env: COMPILER=clang++-3.6
-    - env: COMPILER=clang++-3.7 DISABLE_ASAN=yes
-    - env: COMPILER=clang++-3.8
-    - env: COMPILER=clang++-3.9
-    - env: COMPILER=clang++-4.0
-    - env: COMPILER=clang++-5.0
-    - env: COMPILER=clang++-6.0
-    - env: COMPILER=clang++-7
+    - env: COMPILER=clang++-9 DISABLE_ASAN=yes
 
   fast_finish: true
 
 install: |
     case ${COMPILER} in
-      g++-[6789])
+      g++-5)
+        ;;
+      g++-*)
         travis_retry sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
         travis_retry sudo apt-get -qq update
         travis_retry sudo apt-get -qy install "${COMPILER}"
@@ -78,8 +74,8 @@
       clang++-*)
         CLANG_VERSION=${COMPILER/clang++}
         if [[ ${CLANG_VERSION} != "-3."* ]]; then
-          wget -O - "https://apt.llvm.org/llvm-snapshot.gpg.key" | sudo apt-key add -
-          travis_retry sudo add-apt-repository -y "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial${CLANG_VERSION/-7} main"
+          travis_retry wget -nv -O - "https://apt.llvm.org/llvm-snapshot.gpg.key" | sudo apt-key add -
+          travis_retry sudo add-apt-repository -y "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial${CLANG_VERSION/-9} main"
         fi
         travis_retry sudo apt-get -qq update
         travis_retry sudo apt-get -qy install "clang${CLANG_VERSION}"
@@ -89,6 +85,11 @@
 before_script:
   - if [[ ${TRAVIS_OS_NAME} == linux ]]; then export NODE_LABELS="Linux Ubuntu Ubuntu-16.04"; fi
   - if [[ ${TRAVIS_OS_NAME} == osx ]]; then export NODE_LABELS="OSX OSX-${OSX_VERSION}"; fi
+  - if [[ ${OSX_VERSION} == 10.12 ]]; then brew update; fi
+  # workaround for https://github.com/Homebrew/homebrew-core/issues/26358
+  - if [[ ${OSX_VERSION} == 10.12 ]]; then brew outdated python || brew upgrade python; fi
+  # workaround for https://github.com/travis-ci/travis-ci/issues/6688
+  - if [[ ${OSX_VERSION} == 10.12 ]]; then /usr/bin/yes | pip2 uninstall numpy || true; fi
   - if [[ -n ${COMPILER} ]]; then export CXX=${COMPILER}; fi
   - ${CXX:-c++} --version
   - python --version