diff --git a/.github/workflows/commands-handler.yml b/.github/workflows/commands-handler.yml
index ab7456da..4030b3f2 100644
--- a/.github/workflows/commands-handler.yml
+++ b/.github/workflows/commands-handler.yml
@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           token: ${{ secrets.GH_TOKEN }}
       - name: Checkout release actions
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: pubnub/client-engineering-deployment-tools
           ref: v1
diff --git a/.github/workflows/composite/unit-integration-test-runner/action.yaml b/.github/workflows/composite/unit-integration-test-runner/action.yaml
new file mode 100644
index 00000000..ae7cd5aa
--- /dev/null
+++ b/.github/workflows/composite/unit-integration-test-runner/action.yaml
@@ -0,0 +1,71 @@
+---
+name: Tests runner
+description: Unit and integration tests runner for multiple compiler types.
+author: PubNub
+inputs:
+  os:
+    description: Environment in which framework should be built.
+    required: true
+  version:
+    description: "Which version of 'cgreen' should be built."
+    required: true
+  pubNubPubKey:
+    description: "PubNub publish keys which should be used with integration tests"
+    required: true
+  pubNubSubKey:
+    description: "PubNub subscribe keys which should be used with integration tests"
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Prepare environments
+      shell: bash
+      run: |
+        echo "PUBNUB_PUBKEY=${{ inputs.pubNubPubKey }}" >> $GITHUB_ENV
+        echo "PUBNUB_KEYSUB=${{ inputs.pubNubSubKey }}" >> $GITHUB_ENV
+    - name: Pull Unit Test framework ('${{ inputs.os }}' gcc, clang)
+      uses: ./.github/workflows/composite/unit-test-framework
+      with:
+        os: ${{ inputs.os }}
+        version: ${{ inputs.version }}
+        compilers: gcc,clang
+    - name: Prepare Unit Test framework ('${{ inputs.os }}' gcc)
+      shell: bash
+      run: |
+        mv "$GITHUB_WORKSPACE/cgreen" "$GITHUB_WORKSPACE/cgreen-universal"
+        cp -r "$GITHUB_WORKSPACE/cgreen-universal/gcc" "$GITHUB_WORKSPACE/cgreen"
+    - name: Run unit tests ('${{ inputs.os }}' gcc)
+      shell: bash
+      env:
+        CC: gcc
+        CXX: "g++"
+      run: .github/workflows/composite/unit-integration-test-runner/run-unit-tests.sh ${{ inputs.os }}
+    - name: Run integration tests ('${{ inputs.os }}' gcc)
+      shell: bash
+      env:
+        CC: gcc
+        CXX: "g++"
+      run: .github/workflows/composite/unit-integration-test-runner/run-integration-tests.sh ${{ inputs.os }}
+    - name: Prepare Unit Test framework ('${{ inputs.os }}' clang)
+      shell: bash
+      run: |
+        rm -rf "$GITHUB_WORKSPACE/cgreen"
+        cp -r "$GITHUB_WORKSPACE/cgreen-universal/clang" "$GITHUB_WORKSPACE/cgreen"
+    - name: Run unit tests ('${{ inputs.os }}' clang)
+      shell: bash
+      env:
+        CC: clang
+        CXX: "clang++"
+      run: .github/workflows/composite/unit-integration-test-runner/run-unit-tests.sh ${{ inputs.os }}
+    - name: Run integration tests ('${{ inputs.os }}' clang)
+      shell: bash
+      env:
+        CC: clang
+        CXX: "clang++"
+      run: .github/workflows/composite/unit-integration-test-runner/run-integration-tests.sh ${{ inputs.os }}
+    - name: Restore Unit Test framework ('${{ inputs.os }}' gcc,clang)
+      shell: bash
+      run: |
+        rm -rf "$GITHUB_WORKSPACE/cgreen"
+        cp -r "$GITHUB_WORKSPACE/cgreen-universal" "$GITHUB_WORKSPACE/cgreen"
\ No newline at end of file
diff --git a/.github/workflows/composite/unit-integration-test-runner/run-integration-tests.sh b/.github/workflows/composite/unit-integration-test-runner/run-integration-tests.sh
new file mode 100755
index 00000000..a89779a3
--- /dev/null
+++ b/.github/workflows/composite/unit-integration-test-runner/run-integration-tests.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+INFO_BG="\033[0m\033[48;2;5;49;70m"
+INFO_FG="\033[38;2;19;181;255m"
+BOLD_INFO_FG="${INFO_FG}\033[1m"
+SUCCESS_BG="\033[0m\033[48;2;30;69;1m"
+SUCCESS_FG="\033[38;2;95;215;0m"
+BOLD_SUCCESS_FG="${SUCCESS_FG}\033[1m"
+CLEAR="\033[0m"
+
+echo "::group::Run integration tests ('$1' $CC / $CXX)"
+cd "$GITHUB_WORKSPACE"
+
+if ! build="$(make -f posix.mk clean all 2>&1)"; then
+  echo "::error file=posix.mk::Unable to build test suite: $build"
+  exit 1
+else
+  echo -e "${SUCCESS_BG}Test suit is built 🎉${CLEAR}"
+fi
+
+[[ "$build" =~ "deprecated" ]] && echo "::warning title=deprecated::There is deprecated functions used in code."
+[[ "$build" =~ "not used" ]] && echo "::warning title=unused::There is unused variables and / or functions in code."
+
+echo -e "${INFO_BG}${INFO_FG}Running ${BOLD_INFO_FG}POSIX ${INFO_BG}${INFO_FG}integration tests...${CLEAR}"
+posix/pubnub_fntest
+echo -e "${SUCCESS_BG}${BOLD_SUCCESS_FG}POSIX ${SUCCESS_BG}${SUCCESS_FG}integration tests completed 🎉${CLEAR}"
+echo -e "${INFO_BG}${INFO_FG}Running ${BOLD_INFO_FG}OpenSSL ${INFO_BG}${INFO_FG}integration tests${CLEAR}"
+openssl/pubnub_fntest
+echo -e "${SUCCESS_BG}${BOLD_SUCCESS_FG}POSIX ${SUCCESS_BG}${SUCCESS_FG}integration tests completed 🎉${CLEAR}"
+echo -e "${INFO_BG}${INFO_FG}Running ${BOLD_INFO_FG}C++ ${INFO_BG}${INFO_FG}integration tests${CLEAR}"
+cpp/fntest_runner
+echo -e "${SUCCESS_BG}${BOLD_SUCCESS_FG}POSIX ${SUCCESS_BG}${SUCCESS_FG}integration tests completed 🎉${CLEAR}"
+echo -e "${INFO_BG}${INFO_FG}Running ${BOLD_INFO_FG}C++ OpenSSL ${INFO_BG}${INFO_FG}integration tests${CLEAR}"
+cpp/openssl/fntest_runner
+echo -e "${SUCCESS_BG}${BOLD_SUCCESS_FG}POSIX ${SUCCESS_BG}${SUCCESS_FG}integration tests completed 🎉${CLEAR}"
+echo "::endgroup::"
diff --git a/.github/workflows/composite/unit-integration-test-runner/run-unit-tests.sh b/.github/workflows/composite/unit-integration-test-runner/run-unit-tests.sh
new file mode 100755
index 00000000..0da15bf5
--- /dev/null
+++ b/.github/workflows/composite/unit-integration-test-runner/run-unit-tests.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+echo "::group::Run unit tests ('$1' $CC / $CXX)"
+cd "$GITHUB_WORKSPACE/core"
+make clean generate_report
+cd "$GITHUB_WORKSPACE/lib"
+make clean generate_report
+echo "::endgroup::"
\ No newline at end of file
diff --git a/.github/workflows/composite/unit-test-framework/action.yaml b/.github/workflows/composite/unit-test-framework/action.yaml
new file mode 100644
index 00000000..e0114ddc
--- /dev/null
+++ b/.github/workflows/composite/unit-test-framework/action.yaml
@@ -0,0 +1,38 @@
+---
+name: Unit Test and Mocking framework
+description: Manage unit test framework build and cache so it can be used with jobs.
+author: PubNub
+inputs:
+  os:
+    description: Environment in which framework should be built.
+    required: true
+  version:
+    description: "Which version of 'cgreen' should be built."
+    required: true
+  compilers:
+    description: "Coma-separated list of currently supported C compilers to be used during build (gcc, clang)."
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Build and Cache Unit Test framework ('${{ inputs.os }}' ${{ inputs.compilers }})
+      id: unit-test-framework
+      uses: actions/cache@v3
+      with:
+        path: |
+          cgreen
+        key: ${{ inputs.os }}-cgreen-${{ inputs.version }}-1
+        restore-keys: |
+          ${{ inputs.os }}-cgreen-${{ inputs.version }}-
+    - name: Checkout Unit Test framework
+      if: steps.unit-test-framework.outputs.cache-hit != 'true'
+      uses: actions/checkout@v3
+      with:
+        repository: cgreen-devs/cgreen
+        ref: ${{ matrix.cgreen }}
+        path: cgreen
+    - name: Build Unit Test frameworks
+      if: steps.unit-test-framework.outputs.cache-hit != 'true'
+      shell: bash
+      run: .github/workflows/composite/unit-test-framework/build-framework.sh ${{ inputs.os }} ${{ inputs.compilers }}
\ No newline at end of file
diff --git a/.github/workflows/composite/unit-test-framework/build-framework.sh b/.github/workflows/composite/unit-test-framework/build-framework.sh
new file mode 100755
index 00000000..2325792f
--- /dev/null
+++ b/.github/workflows/composite/unit-test-framework/build-framework.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Identify make tool which depends from environment.
+[[ $1 =~ (ubuntu|macos) ]] && MAKE_TOOL=make || MAKE_TOOL=$(MAKE)
+
+# Iterating over list of passed compilers.
+for compiler in ${2//,/ }
+do
+  # Navigate to unit test framework source folder.
+  cd "$GITHUB_WORKSPACE/cgreen"
+
+  # Clean up previous build results.
+  [[ -d build ]] && $MAKE_TOOL clean && rm -rf build
+
+  echo "::group::Build unit test framework ('$1' $compiler)"
+  if [[ $1 =~ (ubuntu|macos) ]]; then
+    export CC="$compiler"
+    [[ $compiler == "gcc" ]] && export CXX="g++" || export CXX="$compiler++"
+  else
+    echo "::warning title=compiler flags::Here should be some setup for Windows compiler"
+  fi
+
+  echo "::notice title=cgreen::Prepare folders structure"
+  ! [[ -d "$GITHUB_WORKSPACE/cgreen-tmp/$compiler" ]] &&
+    mkdir -p "$GITHUB_WORKSPACE/cgreen-tmp/$compiler"
+  mkdir -p build && cd build
+
+  # Enable 'gcov' only for build on Ubuntu.
+  [[ "$1" == "ubuntu" ]] && WITH_GCOV=ON || WITH_GCOV=OFF
+  if [[ "$WITH_GCOV" == ON ]]; then
+    echo "::notice title=gcov::Installing 'gcov' for code coverage."
+    if ! install="$(pip install --user gcovr)"; then
+      echo "::error title=gcov::Unable to install 'gcov':$install"
+    else
+    echo "::notice title=gcov::Installing 'gcov' for code coverage."
+    fi
+  else
+    echo "::warning title=gcov::'gcov' doesn't work as expected on $1."
+    echo "::warning title=gcov::Configure 'cgreen' without 'gcov' support"
+  fi
+
+  echo "::notice title=cgreen::Configure 'cgreen' build"
+  cmake -E env LDFLAGS="-lm" cmake -DCGREEN_INTERNAL_WITH_GCOV:BOOL=$WITH_GCOV ..
+
+  echo "::notice title=cgreen::Build 'cgreen' framework"
+  make -j2
+
+  echo "::notice::Move built results to compiler specific colder"
+  mv "$GITHUB_WORKSPACE/cgreen/build" "$GITHUB_WORKSPACE/cgreen-tmp/$compiler/build"
+  cp -r "$GITHUB_WORKSPACE/cgreen/include" "$GITHUB_WORKSPACE/cgreen-tmp/$compiler/include"
+
+  # Clean up configured environments.
+  unset CC && unset CXX
+  echo "::endgroup::"
+done
+
+echo "::notice title=cgreen::Prepare files for caching"
+rm -rf "$GITHUB_WORKSPACE/cgreen"
+mv "$GITHUB_WORKSPACE/cgreen-tmp" "$GITHUB_WORKSPACE/cgreen"
\ No newline at end of file
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 03ea21cb..cf3280dd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,25 +15,25 @@ jobs:
       release: ${{ steps.check.outputs.ready }}
     steps:
       - name: Checkout actions
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: pubnub/client-engineering-deployment-tools
           ref: v1
           token: ${{ secrets.GH_TOKEN }}
           path: .github/.release/actions
-      - id: check
-        name: Check pre-release completed
+      - name: Check pre-release completed
+        id: check
         uses: ./.github/.release/actions/actions/checks/release
         with:
           token: ${{ secrets.GH_TOKEN }}
   publish:
     name: Publish package
-    runs-on: macos-11
+    runs-on: ubuntu-latest
     needs: check-release
     if: ${{ needs.check-release.outputs.release == 'true' }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           # This should be the same as the one specified for on.pull_request.branches
           ref: master
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
new file mode 100644
index 00000000..305aaa80
--- /dev/null
+++ b/.github/workflows/run-tests.yml
@@ -0,0 +1,120 @@
+name: Tests
+
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+  workflow_dispatch:
+
+
+jobs:
+  tests-ubuntu:
+    name: Integration and Unit tests (Ubuntu)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout project
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+      - name: Build and run tests
+        uses: ./.github/workflows/composite/unit-integration-test-runner
+        with:
+          os: ubuntu
+          version: 1.6.0
+          pubNubPubKey: ${{ secrets.PUBNUB_PUBKEY }}
+          pubNubSubKey: ${{ secrets.PUBNUB_KEYSUB }}
+  tests-macos:
+    name: Integration and Unit tests (macOS)
+    runs-on: macos-latest
+    steps:
+      - name: Checkout project
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+      - name: Build and run tests
+        uses: ./.github/workflows/composite/unit-integration-test-runner
+        with:
+          os: macos
+          version: 1.6.0
+          pubNubPubKey: ${{ secrets.PUBNUB_PUBKEY }}
+          pubNubSubKey: ${{ secrets.PUBNUB_KEYSUB }}
+  acceptance:
+    name: Acceptance tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup environment
+        shell: bash
+        run: |
+          sudo apt-get install -y ninja-build libboost-all-dev libssl-dev
+          sudo gem install cucumber
+      - name: Checkout project
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+      - name: Checkout mock-server action
+        uses: actions/checkout@v3
+        with:
+          repository: pubnub/client-engineering-deployment-tools
+          ref: v1
+          token: ${{ secrets.GH_TOKEN }}
+          path: .github/.release/actions
+      - name: Run mock server action
+        uses: ./.github/.release/actions/actions/mock-server
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+      - name: Pull Cucumber cache
+        id: cucumber-cpp
+        uses: actions/cache@v3
+        with:
+          path: |
+            cucumber-cpp
+          key: ${{ runner.os }}-cucumber-cpp-c79100eb70fbb34f6ea10030cec051c2cc9f7961
+          restore-keys: |
+            ${{ runner.os }}-cucumber-cpp-
+      - name: Checkout Cucumber
+        if: steps.cucumber-cpp.outputs.cache-hit != 'true'
+        uses: actions/checkout@v3
+        with:
+          repository: cucumber/cucumber-cpp
+          ref: c79100eb70fbb34f6ea10030cec051c2cc9f7961
+          path: cucumber-cpp-src
+      - name: Build Cucumber
+        if: steps.cucumber-cpp.outputs.cache-hit != 'true'
+        shell: bash
+        run: |
+          cd ./cucumber-cpp-src
+          cmake -B build -DCMAKE_BUILD_TYPE=Debug
+          cmake --build build --config Debug
+          cd "$GITHUB_WORKSPACE"
+          mkdir -p cucumber-cpp
+          mv cucumber-cpp-src/build cucumber-cpp/build
+          mv cucumber-cpp-src/include cucumber-cpp/include
+          rm -rf cucumber-cpp-src
+      - name: Build acceptance tests
+        shell: bash
+        run: |
+          cd cpp
+          make -f posix_openssl.mk openssl/pubnub_sync
+          cd "$GITHUB_WORKSPACE"
+          g++ -std=c++11 -g -o BoostSteps.o -c features/step_definitions/BoostSteps.cpp -Icucumber-cpp/include -Icucumber-cpp/build/src/ -Iposix -Icore -I. -Icpp -D PUBNUB_CRYPTO_API=1 -D PUBNUB_USE_SSL=0
+          g++ -o steps BoostSteps.o cpp/pubnub_sync.a cucumber-cpp/build/src/libcucumber-cpp.a -Lboost -lboost_unit_test_framework -lpthread -lboost_regex -lboost_thread -lboost_program_options -lboost_filesystem -lssl -lcrypto -D PUBNUB_USE_SSL=0
+      - name: Run acceptance tests
+        shell: bash
+        env:
+          PAM_PUB_KEY: "pub_key"
+          PAM_SUB_KEY: "sub_key"
+          PAM_SEC_KEY: "sec_key"
+        run: |
+          mv sdk-specifications/features/access features
+          sudo python3 run_contract_tests.py features/access/grant-token.feature
+          sudo python3 run_contract_tests.py features/access/revoke-token.feature
+          ls -la results
+      - name: Expose acceptance tests reports
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: acceptance-test-reports
+          path: ./results/**
+          retention-days: 7
\ No newline at end of file
diff --git a/.github/workflows/run-validations.yml b/.github/workflows/run-validations.yml
new file mode 100644
index 00000000..716f5773
--- /dev/null
+++ b/.github/workflows/run-validations.yml
@@ -0,0 +1,22 @@
+name: Validations
+
+on: [push]
+
+jobs:
+  validators:
+    name: "Validate .pubnub.yml"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout project
+        uses: actions/checkout@v3
+      - name: Checkout validator action
+        uses: actions/checkout@v3
+        with:
+          repository: pubnub/client-engineering-deployment-tools
+          ref: v1
+          token: ${{ secrets.GH_TOKEN }}
+          path: .github/.release/actions
+      - name: "Run '.pubnub.yml' file validation"
+        uses: ./.github/.release/actions/actions/validators/pubnub-yml
+        with:
+          token: ${{ secrets.GH_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/run_acceptance_tests.yml b/.github/workflows/run_acceptance_tests.yml
deleted file mode 100644
index b9132b59..00000000
--- a/.github/workflows/run_acceptance_tests.yml
+++ /dev/null
@@ -1,74 +0,0 @@
-
-name: run_acceptance_tests
-
-on: [push]
-
-jobs:
-  build:
-    name: Perform Acceptance BDD tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout project
-        uses: actions/checkout@v2
-      - name: Checkout mock-server action
-        uses: actions/checkout@v2
-        with:
-          repository: pubnub/client-engineering-deployment-tools
-          ref: v1
-          token: ${{ secrets.GH_TOKEN }}
-          path: client-engineering-deployment-tools
-      - name: Run mock server action
-        uses: ./client-engineering-deployment-tools/actions/mock-server
-        with:
-          token: ${{ secrets.GH_TOKEN }}
-      - name: Setup environment
-        run: |
-          sudo apt-get install -y ninja-build libboost-all-dev libssl-dev
-          sudo gem install cucumber
-      - name: Git clone cucumber-cpp
-        run: |
-          git clone https://github.com/cucumber/cucumber-cpp.git
-      - name: Cache cucumber-cpp
-        id: cache-cucumber-cpp
-        uses: actions/cache@v2
-        with:
-          path: |
-            cucumber-cpp
-          key: ${{ runner.os }}-cucumber-cpp-${{ hashFiles('cucumber-cpp/**') }}
-          restore-keys: |
-              ${{ runner.os }}-cucumber-cpp
-      - name: Configure cucumber-cpp
-        if: steps.cache-cucumber-cpp.outputs.cache-hit != 'true'
-        run: |
-          cmake -B build -DCMAKE_BUILD_TYPE=Debug
-        working-directory: ./cucumber-cpp
-
-      - name: Build cucumber-cpp
-        if: steps.cache-cucumber-cpp.outputs.cache-hit != 'true'
-        run: |
-          cmake --build build --config Debug
-        working-directory: ./cucumber-cpp
-     
-      - name: Build acceptance tests
-        run: |
-          cd cpp
-          make -f posix_openssl.mk openssl/pubnub_sync
-          cd ..
-          g++ -std=c++11 -g -o BoostSteps.o -c features/step_definitions/BoostSteps.cpp -Icucumber-cpp/include -Icucumber-cpp/build/src/ -Iposix -Icore -I. -Icpp -D PUBNUB_CRYPTO_API=1 -D PUBNUB_USE_SSL=0
-          g++ -o steps BoostSteps.o cpp/pubnub_sync.a cucumber-cpp/build/src/libcucumber-cpp.a -Lboost -lboost_unit_test_framework -lpthread -lboost_regex -lboost_thread -lboost_program_options -lboost_filesystem -lssl -lcrypto -D PUBNUB_USE_SSL=0
-      - name: Run acceptance tests
-        env:
-          PAM_PUB_KEY: "pub_key"
-          PAM_SUB_KEY: "sub_key"
-          PAM_SEC_KEY: "sec_key"
-        run: |
-          mv sdk-specifications/features/access features
-          sudo python3 run_contract_tests.py features/access/grant-token.feature
-          sudo python3 run_contract_tests.py features/access/revoke-token.feature
-          ls -la results
-      - name: Upload acceptance tests reports
-        if: always()
-        uses: actions/upload-artifact@v2
-        with:
-          name: acceptance-test-reports
-          path: ./results/**
diff --git a/.github/workflows/validate-pubnub-yml.yml b/.github/workflows/validate-pubnub-yml.yml
deleted file mode 100644
index 5963a0ff..00000000
--- a/.github/workflows/validate-pubnub-yml.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-name: validate-pubnub-yml
-
-# Controls when the action will run. Workflow runs when manually triggered using the UI
-# or API.
-on: [push]
-
-jobs:
-  build:
-      name: Validate PubNub yml
-      runs-on: ubuntu-latest
-      steps:
-        - uses: actions/checkout@v2
-        - name: Use Node.js
-          uses: actions/setup-node@v1
-          with:
-            node-version: '12.x'
-        - name: Install dependencies
-          run: |
-            npm install ajv@6.12.6
-            npm install yaml@1.10.0
-            npm install node-fetch@2.6.1
-            npm install chalk@2.4.2
-        - name: Validate
-          run: GITHUB_TOKEN=${{ secrets.GH_TOKEN }} node ./.github/workflows/validate-yml.js
diff --git a/.github/workflows/validate-yml.js b/.github/workflows/validate-yml.js
deleted file mode 100644
index b69ea465..00000000
--- a/.github/workflows/validate-yml.js
+++ /dev/null
@@ -1,94 +0,0 @@
-const YAML = require('yaml')
-const Ajv = require('ajv');
-const fetch = require('node-fetch');
-const fs = require('fs');
-const chalk = require('chalk');
-
-const ghToken = process.env.GITHUB_TOKEN;
-const ghHeaders = {'User-Agent': 'sdk-bot', 'Authorization': 'token ' + ghToken,'Accept': 'application/vnd.github.v3.raw'};
-
-const sdkReposJSONBranch = "develop";
-let sdkReposJSONPath = "http://api.github.com/repos/pubnub/documentation-resources/contents/website-common/tools/build/sdk-repos.json?ref=" + sdkReposJSONBranch;
-startExecution(sdkReposJSONPath);
-
-async function startExecution(sdkReposJSONPath){
-    var sdkRepos = await requestGetFromGithub(sdkReposJSONPath);
-    var sdkReposAndFeatureMappingArray = parseReposAndFeatureMapping(sdkRepos);
-    var schemaText = await requestGetFromGithub(sdkReposAndFeatureMappingArray[2]);
-
-    schema = JSON.parse(schemaText);
-    var yaml = fs.readFileSync(".pubnub.yml", 'utf8');    
-
-    if(yaml != null){
-        yml = YAML.parse(yaml);
-        var ajv = new Ajv({schemaId: 'id', "verbose":true, "allErrors": true});
-        const validate = ajv.compile(schema);  
-        const valid = validate(yml);
-        if (validate.errors!= null) {            
-                console.log(chalk.cyan("==================================="));
-                console.log(chalk.red(yml["version"] + " validation errors..."));
-                console.log(chalk.cyan("==================================="));
-                console.log(validate.errors);
-                console.log(chalk.cyan("==================================="));
-                var result = {code:1, repo: yml["version"], msg: "validation errors"};
-                printResult(result); 
-                process.exit(1);
-        } 
-        else {
-            var result = {code: 0, repo: yml["version"], msg: "validation pass"};
-            printResult(result);
-        }
-    } else {
-        var result = {code:1, repo: "yml null", msg: "validation errors"};
-        printResult(result);    
-        process.exit(1);
-    }
-} 
-
-function printResult(result){  
-    var str = result.repo + ", " + result.msg;
-    if(result.code === 0){
-        console.log(chalk.green(str) + ", Code: " + result.code);
-    } else {
-        console.log(chalk.red(str) + ", Code: " + result.code);
-    }
-}
-
-async function requestGetFromGithub(url){
-    try {
-        const response = await fetch(url, {
-            headers: ghHeaders,
-            method: 'get',
-        });
-        if(response.status == 200){
-            const json = await response.text();        
-            return json;
-        } else {
-            console.error(chalk.red("res.status: " + response.status + "\n URL: " + url));
-            return null;    
-        }
-
-    } catch (error) {
-        console.error(chalk.red("requestGetFromGithub: " + error + "\n URL: " + url));
-        return null;
-    }
-}
-
-function parseReposAndFeatureMapping(body){
-    if(body != null){
-        var sdkRepos = JSON.parse(body);
-        var locations = sdkRepos["locations"];
-        if(locations!=null){
-            var sdkURLs = locations["sdks"];
-            var featureMappingURL = locations["featureMapping"];
-            var pubnubYAMLSchemaURL = locations["pubnubYAMLSchema"];
-            return [sdkURLs, featureMappingURL, pubnubYAMLSchemaURL];
-        } else {
-            console.log(chalk.red("response locations null"));
-            return null;
-        }
-    } else {
-        console.log(chalk.red("response body null"));
-        return null;
-    }
-}
diff --git a/.gitignore b/.gitignore
index 29eedd52..9c78d650 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,4 +37,10 @@
 ##################
 .github/.release
 
-.idea
\ No newline at end of file
+.idea
+
+.DS_Store
+cgreen-src/
+cgreen/
+cucumber-cpp/
+cucumber-cpp-src/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 01d19400..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,76 +0,0 @@
-dist: xenial
-language: c
-os: linux
-
-
-_shared_unit_tests: &shared_unit_tests
-  script:
-    - cd "$TRAVIS_BUILD_DIR/core"
-    - make generate_report
-    - cd "$TRAVIS_BUILD_DIR/lib"
-    - make generate_report
-
-_shared_integration_tests: &shared_integration_tests
-  before_script: 
-    - cd "$TRAVIS_BUILD_DIR"
-    - make -f posix.mk
-  script:
-    - posix/pubnub_fntest
-    - openssl/pubnub_fntest
-    - cpp/fntest_runner
-    - cpp/openssl/fntest_runner
-
-install:
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then pip install --user gcovr ; fi
-
-before_script:
-  - git clone https://github.com/cgreen-devs/cgreen.git
-  - cd cgreen
-  - git checkout 1.4.1
-  - mkdir -p build
-  - cd build
-  - cmake -DCGREEN_INTERNAL_WITH_GCOV:BOOL=ON ..
-  - make -j2
-  - cd ../..
-
-
-stages:
-  - name: "Unit tests"
-  - name: "Integration tests"
-
-jobs:
-  include:
-    - stage: "Unit tests"
-      name: "[Linux] Unit tests (clang)"
-      os: linux
-      compiler: clang
-      <<: *shared_unit_tests
-    - name: "[Linux] Unit tests (GCC)"
-      os: linux
-      compiler: gcc
-      <<: *shared_unit_tests
-    - name: "[macOS] Unit tests (clang)"
-      os: osx
-      compiler: clang
-      <<: *shared_unit_tests
-    - name: "[macOS] Unit tests (GCC)"
-      os: osx
-      compiler: gcc
-      <<: *shared_unit_tests
-    - stage: "Integration tests"
-      name: "[Linux] Integration tests (clang)"
-      os: linux
-      compiler: clang
-      <<: *shared_integration_tests
-    - name: "[Linux] Integration tests (GCC)"
-      os: linux
-      compiler: gcc
-      <<: *shared_integration_tests
-    - name: "[macOS] Integration tests (clang)"
-      os: osx
-      compiler: clang
-      <<: *shared_integration_tests
-    - name: "[macOS] Integration tests (GCC)"
-      os: osx
-      compiler: gcc
-      <<: *shared_integration_tests
diff --git a/core/Makefile b/core/Makefile
index a201baf3..abc0ba3b 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -77,4 +77,5 @@ pubnub_proxy_unittest: $(PROJECT_SOURCEFILES) $(PROXY_PROJECT_SOURCEFILES) pubnu
 	#$(GCOVR) -r . --html --html-details -o coverage.html
 
 clean:
-	rm pubnub_core_unit_test.so pubnub_timer_list_unit_test.so pubnub_proxy_unit_test.so *.gcda *.gcno *.html
+	find . -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find . -type f -name "*.so" -o -name "*.gcda" -o -name "*.gcno" -o -name "*.html" | xargs -r rm -rf
diff --git a/cpp/posix.mk b/cpp/posix.mk
index 15581a14..053d9420 100644
--- a/cpp/posix.mk
+++ b/cpp/posix.mk
@@ -171,4 +171,5 @@ fntest_runner: fntest/pubnub_fntest_runner.cpp $(SOURCEFILES) $(SYNC_INTF_SOURCE
 
 
 clean:
-	rm pubnub_sync_sample pubnub_callback_sample pubnub_callback_cpp11_sample pubnub_callback_subloop_sample pubnub_callback_cpp11_subloop_sample cancel_subscribe_sync_sample subscribe_publish_callback_sample futres_nesting_sync pubnub_sync_subloop_sample futres_nesting_callback futres_nesting_callback_cpp11 fntest_runner *.dSYM
+	find . -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find . -type f ! -name "*.*" -o -name "*.a" -o -name "*.o" | xargs -r rm -rf
diff --git a/cpp/posix_openssl.mk b/cpp/posix_openssl.mk
index a9dc8466..56a2f3c0 100644
--- a/cpp/posix_openssl.mk
+++ b/cpp/posix_openssl.mk
@@ -191,4 +191,5 @@ openssl/futres_nesting_callback_cpp11: samples/futres_nesting.cpp $(SOURCEFILES)
 	$(CXX) -o $@ --std=c++11 -D PUBNUB_CALLBACK_API $(CFLAGS) $(CFLAGS_CALLBACK) -x c++ samples/futres_nesting.cpp $(CALLBACK_INTF_SOURCEFILES) pubnub_futres_cpp11.cpp $(SOURCEFILES) $(LDLIBS)
 
 clean:
-	rm openssl/pubnub_sync_sample openssl/pubnub_sync_grant_sample openssl/pubnub_callback_sample openssl/pubnub_callback_cpp11_sample openssl/cancel_subscribe_sync_sample openssl/subscribe_publish_callback_sample openssl/futres_nesting_sync openssl/fntest_runner openssl/futres_nesting_callback openssl/futres_nesting_callback_cpp11 *.dSYM
+	find openssl -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find openssl -type f ! -name "*.*" -o -name "*.a" -o -name "*.o" | xargs -r rm -rf
diff --git a/lib/Makefile b/lib/Makefile
index 618f0a3e..bc725511 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -40,4 +40,5 @@ pubnub_dns_codec_unit_test: pubnub_dns_codec.c pubnub_dns_codec_unit_test.c
 	$(GCOVR) -r . --html --html-details -o coverage.html
 
 clean:
-	rm pubnub_parse_ipv6_addr_unit_test.so pubnub_dns_codec_unit_test.so *.gcda *.gcno *.html
+	find . -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find . -type f -name "*.so" -o -name "*.gcda" -o -name "*.gcno" -o -name "*.html" | xargs -r rm -rf
diff --git a/openssl/posix.mk b/openssl/posix.mk
index 39616c76..235cd2af 100644
--- a/openssl/posix.mk
+++ b/openssl/posix.mk
@@ -241,4 +241,5 @@ pubnub_console_callback: $(CONSOLE_SOURCEFILES) ../core/samples/console/pnc_ops_
 
 
 clean:
-	rm pubnub_sync_sample pubnub_sync_grant_token_sample pubnub_sync_revoke_token_sample pubnub_objects_secretkey_sample metadata pubnub_sync_subloop_sample cancel_subscribe_sync_sample pubnub_publish_via_post_sample pubnub_publish_via_post_secretkey_sample pubnub_callback_sample subscribe_publish_callback_sample pubnub_fntest pubnub_console_sync pubnub_console_callback pubnub_crypto_sync_sample pubnub_sync.a pubnub_sync_dynamiciv.a pubnub_callback.a pubnub_callback_subloop_sample subscribe_publish_from_callback publish_callback_subloop_sample publish_queue_callback_subloop *.o *.dSYM
+	find . -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find . -type f ! -name "*.*" -o -name "*.a" -o -name "*.o" | xargs -r rm -rf -rf
diff --git a/posix/posix.mk b/posix/posix.mk
index 2fbb76cb..9b915dff 100644
--- a/posix/posix.mk
+++ b/posix/posix.mk
@@ -201,6 +201,6 @@ pubnub_console_sync: $(CONSOLE_SOURCEFILES) ../core/samples/console/pnc_ops_sync
 pubnub_console_callback: $(CONSOLE_SOURCEFILES) ../core/samples/console/pnc_ops_callback.c pubnub_callback.a
 	$(CC) -o $@ $(CFLAGS) $(CFLAGS_CALLBACK) -D PUBNUB_CALLBACK_API $(INCLUDES) $(CONSOLE_SOURCEFILES) ../core/samples/console/pnc_ops_callback.c pubnub_callback.a $(LDLIBS)
 
-
 clean:
-	rm pubnub_advanced_history_sample pubnub_fetch_history_sample pubnub_sync_sample pubnub_sync_subloop_sample cancel_subscribe_sync_sample pubnub_sync_publish_retry pubnub_publish_via_post_sample pubnub_callback_sample pubnub_callback_subloop_sample subscribe_publish_callback_sample pubnub_fntest pubnub_console_sync pubnub_console_callback pubnub_sync.a pubnub_callback.a subscribe_publish_from_callback publish_callback_subloop_sample publish_queue_callback_subloop *.o *.dSYM
+	find . -type d -iname "*.dSYM" -exec rm -rf {} \+
+	find . -type f ! -name "*.*" -o -name "*.a" -o -name "*.o" | xargs -r rm -rf