diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
new file mode 100644
index 0000000000..86975970ae
--- /dev/null
+++ b/.github/workflows/build-and-test.yml
@@ -0,0 +1,218 @@
+name: GitHub CI
+
+on:
+  push:
+    branches:
+      - master
+      - develop
+  pull_request:
+    branches:
+      - master
+      - develop
+
+jobs:
+
+  linux-and-mac:
+    # if: ${{ false }}
+    runs-on: ${{ matrix.config.os }}
+    name: ${{ matrix.config.os }} BUILD=${{ matrix.config.build }} CC=${{ matrix.config.cc }} CXX=${{ matrix.config.cxx }} AUTOTOOLS=${{ matrix.config.autotools }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          #- {os: ubuntu-16.04, build: 'static', cc: 'gcc-4.4', cxx: 'g++-4.4', autotools: 'no', cppstd: 'gnu++0x'}
+          #- {os: ubuntu-16.04, build: 'static', cc: 'gcc-4.6', cxx: 'g++-4.6', autotools: 'no', cppstd: 'gnu++0x'}
+          - {os: ubuntu-16.04, build: 'static', cc: 'gcc-4.7', cxx: 'g++-4.7', autotools: 'no', cppstd: 'gnu++11'}
+          - {os: ubuntu-16.04, build: 'static', cc: 'gcc-4.8', cxx: 'g++-4.8', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-16.04, build: 'static', cc: 'gcc-5', cxx: 'g++-5', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-16.04, build: 'static', cc: 'gcc-6', cxx: 'g++-6', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'static', cc: 'gcc-7', cxx: 'g++-7', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'shared', cc: 'gcc', cxx: 'g++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'static', cc: 'gcc', cxx: 'g++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'shared', cc: 'gcc', cxx: 'g++', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'static', cc: 'gcc', cxx: 'g++', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'shared', cc: 'clang', cxx: 'clang++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'static', cc: 'clang', cxx: 'clang++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'shared', cc: 'clang', cxx: 'clang++', autotools: 'no', cppstd: 'c++11'}
+          - {os: ubuntu-latest, build: 'static', cc: 'clang', cxx: 'clang++', autotools: 'no', cppstd: 'c++11'}
+          - {os: macOS-latest, build: 'shared', cc: 'clang', cxx: 'clang++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: macOS-latest, build: 'static', cc: 'clang', cxx: 'clang++', autotools: 'yes', cppstd: 'c++11'}
+          - {os: macOS-latest, build: 'shared', cc: 'clang', cxx: 'clang++', autotools: 'no', cppstd: 'c++11'}
+          - {os: macOS-latest, build: 'static', cc: 'clang', cxx: 'clang++', autotools: 'no', cppstd: 'c++11'}
+
+    env:
+      ASAN_OPTIONS: detect_odr_violation=0
+      AUTOTOOLS: ${{ matrix.config.autotools }}
+      COVERAGE: no
+      BUILD: ${{ matrix.config.build }}
+      CXX: ${{ matrix.config.cxx }}
+      CC: ${{ matrix.config.cc }}
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ruby/setup-ruby@v1
+      if: matrix.config.os == 'ubuntu-16.04'
+      with:
+        ruby-version: 2.6
+    - name: Install ruby hrx module
+      if: matrix.config.os == 'ubuntu-16.04'
+      run: sudo /opt/hostedtoolcache/Ruby/2.6.7/x64/bin/gem install hrx
+    - name: Install ruby minitest module
+      if: matrix.config.os == 'ubuntu-16.04'
+      run: sudo /opt/hostedtoolcache/Ruby/2.6.7/x64/bin/gem install minitest
+    - name: Install automake if needed (MacOS)
+      if: runner.os == 'macOS'
+      run: brew install automake
+    - name: Install gcc 7 if needed
+      if: matrix.config.cc == 'gcc-7'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-7 -y
+    - name: Install gcc 6 if needed
+      if: matrix.config.cc == 'gcc-6'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-6 -y
+    - name: Install gcc 5 if needed
+      if: matrix.config.cc == 'gcc-5'
+      run: |
+        sudo add-apt-repository universe
+        sudo add-apt-repository multiverse
+        sudo apt update
+        sudo apt install g++-5 -y
+    - name: Install gcc 4.8 if needed
+      if: matrix.config.cc == 'gcc-4.8'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-4.8 -y
+    - name: Install gcc 4.7 if needed
+      if: matrix.config.cc == 'gcc-4.7'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-4.7 -y
+    - name: Install gcc 4.6 if needed
+      if: matrix.config.cc == 'gcc-4.6'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-4.6 -y
+    - name: Install gcc 4.5 if needed
+      if: matrix.config.cc == 'gcc-4.5'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-4.5 -y
+    - name: Install gcc 4.4 if needed
+      if: matrix.config.cc == 'gcc-4.4'
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt install g++-4.4 -y
+    - name: ./script/ci-install-deps
+      env:
+        MAKE_OPTS: LIBSASS_CPPSTD=${{ matrix.config.cppstd }}
+      run: ./script/ci-install-deps
+    - name: ./script/ci-install-compiler
+      env:
+        MAKE_OPTS: LIBSASS_CPPSTD=${{ matrix.config.cppstd }}
+      run: ./script/ci-install-compiler
+    - name: ./script/ci-build-libsass
+      env:
+        MAKE_OPTS: LIBSASS_CPPSTD=${{ matrix.config.cppstd }}
+      run: ./script/ci-build-libsass
+
+
+  windows-msvc:
+    runs-on: windows-latest
+    name: Windows MSVC build
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {build: Release, platform: Win64}
+          - {build: Debug, platform: Win64}
+          - {build: Release, platform: Win32}
+          - {build: Debug, platform: Win32}
+
+    steps:
+    - name: Change git config to preserve line-endings
+      run: |
+        git config --system core.autocrlf false
+        git config --system core.eol lf
+    - uses: actions/checkout@v2
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 2.6
+        bundler-cache: true
+    - name: Install ruby hrx module
+      run: gem install hrx
+    - name: Install ruby minitest module
+      run: gem install minitest
+    - name: Add msbuild to PATH
+      uses: microsoft/setup-msbuild@v1.0.2
+    - name: Clone and checkout sassc repository
+      run: git clone https://github.com/sass/sassc.git
+    - name: Clone and checkout sass-spec repository
+      run: git clone https://github.com/sass/sass-spec.git
+    - name: Compile libsass ${{ matrix.config.build }} build for ${{ matrix.config.platform }}
+      run: msbuild /m:4 /p:"Configuration=${{ matrix.config.build }};Platform=${{ matrix.config.platform }}" sassc\win\sassc.sln
+    - name: Execute spec test runner
+      run: ruby sass-spec/sass-spec.rb --probe-todo --impl libsass -c sassc/bin/sassc.exe -s sass-spec/spec
+
+  windows-mingw:
+    runs-on: windows-latest
+    name: Windows MinGW build
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {build: shared, platform: x64}
+          - {build: static, platform: x64}
+          - {build: shared, platform: x86}
+          - {build: static, platform: x86}
+
+    steps:
+    - name: Change git config to preserve line-endings
+      run: |
+        git config --system core.autocrlf false
+        git config --system core.eol lf
+    - uses: actions/checkout@v2
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 2.6
+        bundler-cache: true
+    - name: Set up MinGW
+      uses: egor-tensin/setup-mingw@v2
+      with:
+        platform: ${{ matrix.config.platform }}
+    - name: Install ruby hrx module
+      run: gem install hrx
+    - name: Install ruby minitest module
+      run: gem install minitest
+    - name: Clone and checkout sassc repository
+      run: git clone https://github.com/sass/sassc.git
+    - name: Clone and checkout sass-spec repository
+      run: git clone https://github.com/sass/sass-spec.git
+    - name: Add libsass library path to be found
+      if: matrix.config.build == 'shared'
+      run: echo "/d/a/libsass/libsass/lib" >> $GITHUB_PATH
+    - name: Compile libsass ${{ matrix.config.build }} build for ${{ matrix.config.platform }}
+      run: make ${{ matrix.config.build }} BUILD=${{ matrix.config.build }}
+    - name: Copy library over to pass call test
+      if: matrix.config.build == 'shared'
+      run: copy /a/libsass/libsass/lib/libsass.dll sassc/bin/
+    - name: Compile sassc ${{ matrix.config.build }} build for ${{ matrix.config.platform }}
+      run: make sassc BUILD=${{ matrix.config.build }}
+    - name: Execute spec test runner
+      run: ruby sass-spec/sass-spec.rb --probe-todo --impl libsass -c sassc/bin/sassc.exe -s sass-spec/spec
+
+
+#- name: Install LLVM and Clang
+#  uses: KyleMayes/install-llvm-action@v1.2.2
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index d2a0ca0f45..0000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,70 +0,0 @@
-language: cpp
-
-# ASan needs ptrace support which currently requires `sudo: required`.
-# See https://github.com/travis-ci/travis-ci/issues/9033.
-sudo: required
-
-# don't create redundant code coverage reports
-# - AUTOTOOLS=yes COVERAGE=yes BUILD=static
-# - AUTOTOOLS=no COVERAGE=yes BUILD=shared
-# - AUTOTOOLS=no COVERAGE=no BUILD=static
-
-# further speed up day by day travis-ci builds
-# re-enable this if you change the makefiles
-# this will still catch all coding errors!
-# - AUTOTOOLS=yes COVERAGE=no BUILD=static
-
-# currently there are various issues when
-# built with coverage, clang and autotools
-# - AUTOTOOLS=yes COVERAGE=yes BUILD=shared
-
-matrix:
-  include :
-    - os: linux
-      compiler: gcc
-      env: AUTOTOOLS=no COVERAGE=yes BUILD=static
-    - os: linux
-      compiler: g++-5
-      env: AUTOTOOLS=yes COVERAGE=no BUILD=shared
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-5
-    - os: linux
-      compiler: g++-8
-      env: AUTOTOOLS=yes COVERAGE=no BUILD=shared
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-8
-    - os: linux
-      compiler: clang
-      # This build runs with ASan and we set `detect_odr_violation=0`
-      # to work around https://bugs.llvm.org/show_bug.cgi?id=37545.
-      env: AUTOTOOLS=no COVERAGE=no BUILD=static ASAN_OPTIONS=detect_odr_violation=0
-    - os: linux
-      compiler: clang
-      env: AUTOTOOLS=yes COVERAGE=no BUILD=shared
-    - os: osx
-      compiler: clang
-      env: AUTOTOOLS=no COVERAGE=no BUILD=shared
-    - os: osx
-      compiler: clang
-      env: AUTOTOOLS=no COVERAGE=no BUILD=static
-    - os: osx
-      compiler: clang
-      env: AUTOTOOLS=yes COVERAGE=no BUILD=shared
-
-script:
-  - ./script/ci-build-libsass
-  - ./script/ci-build-plugin math
-  - ./script/ci-build-plugin glob
-  - ./script/ci-build-plugin digest
-  - ./script/ci-build-plugin tests
-before_install: ./script/ci-install-deps
-install: ./script/ci-install-compiler
-after_success: ./script/ci-report-coverage
diff --git a/Makefile b/Makefile
index 30023bab0e..4b6637f1aa 100644
--- a/Makefile
+++ b/Makefile
@@ -57,8 +57,9 @@ ifdef LIBSASS_VERSION
 	CXXFLAGS += -DLIBSASS_VERSION="\"$(LIBSASS_VERSION)\""
 endif
 
-CXXFLAGS += -std=c++11
-LDFLAGS  += -std=c++11
+LIBSASS_CPPSTD ?= c++11
+CXXFLAGS += -std=$(LIBSASS_CPPSTD)
+LDFLAGS  += -std=$(LIBSASS_CPPSTD)
 
 ifeq (Windows,$(UNAME))
 	ifneq ($(BUILD),shared)
diff --git a/Readme.md b/Readme.md
index ca8b89e317..2d1a1d4614 100644
--- a/Readme.md
+++ b/Readme.md
@@ -4,9 +4,9 @@ LibSass - Sass compiler written in C++
 Currently maintained by Marcel Greter ([@mgreter]) and Michael Mifsud ([@xzyfer])
 Originally created by Aaron Leung ([@akhleung]) and Hampton Catlin ([@hcatlin])
 
-[![Unix CI](https://travis-ci.org/sass/libsass.svg?branch=master)](https://travis-ci.org/sass/libsass "Travis CI")
+[![GitHub CI](https://github.com/sass/libsass/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/sass/libsass/actions/workflows/build-and-test.yml "GitHub CI")
 [![Windows CI](https://ci.appveyor.com/api/projects/status/github/sass/libsass?svg=true)](https://ci.appveyor.com/project/sass/libsass/branch/master "Appveyor CI")
-[![Coverage Status](https://img.shields.io/coveralls/sass/libsass.svg)](https://coveralls.io/r/sass/libsass?branch=feature%2Ftest-travis-ci-3 "Code coverage of spec tests")
+[![Coverage Status](https://img.shields.io/coveralls/sass/libsass.svg)](https://coveralls.io/r/sass/libsass?branch=master "Code coverage of spec tests")
 [![Percentage of issues still open](http://isitmaintained.com/badge/open/sass/libsass.svg)](http://isitmaintained.com/project/sass/libsass "Percentage of issues still open")
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/sass/libsass.svg)](http://isitmaintained.com/project/sass/libsass "Average time to resolve an issue")
 [![Bountysource](https://www.bountysource.com/badge/tracker?tracker_id=283068)](https://www.bountysource.com/trackers/283068-libsass?utm_source=283068&utm_medium=shield&utm_campaign=TRACKER_BADGE "Bountysource")
diff --git a/docs/build.md b/docs/build.md
index c656d88396..531480aa14 100644
--- a/docs/build.md
+++ b/docs/build.md
@@ -69,10 +69,10 @@ Continuous Integration
 
 We use two CI services to automatically test all commits against the latest [spec test-suite][5].
 
-- [LibSass on Travis-CI (linux)][7]
-[![Build Status](https://travis-ci.org/sass/libsass.png?branch=master)](https://travis-ci.org/sass/libsass)
+- [LibSass on GitHub Actions (linux)][7]
+[![Build Status](https://github.com/sass/libsass/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/sass/libsass/actions/workflows/build-and-test.yml)
 - [LibSass on AppVeyor (windows)][8]
-[![Build status](https://ci.appveyor.com/api/projects/status/github/sass/libsass?svg=true)](https://ci.appveyor.com/project/mgreter/libsass-513/branch/master)
+[![Build status](https://ci.appveyor.com/api/projects/status/github/sass/libsass?svg=true)](https://ci.appveyor.com/project/sass/libsass/branch/master)
 
 Why not using CMake?
 --
@@ -90,7 +90,7 @@ Miscellaneous
 [4]: build-shared-library.md
 [5]: https://github.com/sass/sass-spec
 [6]: https://github.com/sass/sassc
-[7]: https://github.com/sass/libsass/blob/master/.travis.yml
+[7]: https://github.com/sass/libsass/blob/master/.github/workflows
 [8]: https://github.com/sass/libsass/blob/master/appveyor.yml
 [9]: implementations.md
 [10]: build-on-darwin.md
diff --git a/script/ci-build-libsass b/script/ci-build-libsass
index d4ade4eb73..84f25e00cb 100755
--- a/script/ci-build-libsass
+++ b/script/ci-build-libsass
@@ -4,6 +4,8 @@ set -e
 
 script/bootstrap
 
+echo Building LibSass $MAKE_OPTS
+
 # export this path right here (was in script/spec before)
 export SASS_LIBSASS_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )"/../ && pwd )"
 
@@ -90,8 +92,8 @@ else
   make $MAKE_OPTS clean
 
   # Run C++ unit tests
-  make -C test clean
-  make -C test test
+  make $MAKE_OPTS -C test clean
+  make $MAKE_OPTS -C test test
 
 fi
 
diff --git a/script/ci-install-compiler b/script/ci-install-compiler
index 30505a5440..bccc75ae45 100755
--- a/script/ci-install-compiler
+++ b/script/ci-install-compiler
@@ -1,8 +1,8 @@
 #!/bin/bash
 
-gem install minitest
-gem install minitap
-gem install rspec
-gem install hrx
+sudo gem install minitest
+sudo gem install minitap
+sudo gem install rspec
+sudo gem install hrx
 
-pip2 install --user 'requests[security]'
+# sudo pip2 install --user 'requests[security]'
diff --git a/test/Makefile b/test/Makefile
index 0f9aa30bcf..ac512f0ebb 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,5 +1,10 @@
 CXX ?= c++
-CXXFLAGS := -I ../include/ -std=c++11 -fsanitize=address -g -O1 -fno-omit-frame-pointer
+
+CXXFLAGS := -I ../include/ -g -O1 -fno-omit-frame-pointer
+
+LIBSASS_CPPSTD ?= c++11
+CXXFLAGS += -std=$(LIBSASS_CPPSTD)
+LDFLAGS  += -std=$(LIBSASS_CPPSTD)
 
 test: test_shared_ptr test_util_string