diff --git a/builder.json b/builder.json
index 1d38416..79c8c91 100644
--- a/builder.json
+++ b/builder.json
@@ -1,12 +1,12 @@
 {
     "name": "aws-crt-dotnet",
     "build_steps": [
-        "dotnet build -f netstandard2.0 -p:AwsCrtPlatformTarget={aws_crt_platform_target}",
-        "dotnet pack -p:TargetFrameworks=netstandard2.0 -p:AwsCrtPlatformTarget={aws_crt_platform_target}"
+        "dotnet build -f netstandard2.0 -p:AwsCrtPlatformTarget={aws_crt_platform_target} --configuration Debug",
+        "dotnet pack -p:TargetFrameworks=netstandard2.0 -p:AwsCrtPlatformTarget={aws_crt_platform_target} --configuration Debug"
     ],
     "test_steps": [
-        "dotnet build tests/tests.csproj {build_tests_args}",
-        "dotnet test tests --no-build {run_tests_args}"
+        "dotnet build tests/tests.csproj {build_tests_args} --configuration Debug",
+        "dotnet test tests --no-build {run_tests_args} --configuration Debug"
     ],
     "imports": [
         "dotnetcore"
@@ -90,7 +90,7 @@
     "variants": {
         "mono_test" : {
             "!test_steps": [
-                "dotnet build tests/tests.csproj -t:MonoTest {build_tests_args}"
+                "dotnet build tests/tests.csproj -t:MonoTest {build_tests_args} --configuration Debug"
             ]
         }
     }
diff --git a/clean_rebuild.sh b/clean_rebuild.sh
index b79f37c..04dbff5 100755
--- a/clean_rebuild.sh
+++ b/clean_rebuild.sh
@@ -19,5 +19,5 @@ rm -rf tests/obj
 rm -rf tools/Elasticurl/bin
 rm -rf tools/Elasticurl/ob
 
-dotnet build -f netstandard2.0 -p:PlatformTarget=x64 -p:CMakeConfig=Debug
-dotnet pack -p:TargetFrameworks=netstandard2.0
+dotnet build -f netstandard2.0 -p:PlatformTarget=x64 -p:CMakeConfig=Debug --configuration Debug
+dotnet pack -p:TargetFrameworks=netstandard2.0 --configuration Debug
diff --git a/codebuild/common-posix.sh b/codebuild/common-posix.sh
deleted file mode 100755
index e2bb41e..0000000
--- a/codebuild/common-posix.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-# packages dir needs to exist
-mkdir -p packages
-# test will build and package, then run tests
-dotnet build -v normal
-dotnet test tests -v normal
-
-if [ "$AWS_DOTNET_RUNTIME" == "" ]; then
-    exit 0
-fi
-
-dotnet publish --self-contained --runtime $AWS_DOTNET_RUNTIME tools/Elasticurl
-
-curl -L -o /tmp/http_client_test.py https://raw.githubusercontent.com/awslabs/aws-c-http/main/integration-testing/http_client_test.py
-python3 /tmp/http_client_test.py tools/Elasticurl/bin/Debug/netcoreapp2.1/$AWS_DOTNET_RUNTIME/publish/Elasticurl.NET
diff --git a/codebuild/linux-clang3-x64.yml b/codebuild/linux-clang3-x64.yml
deleted file mode 100644
index 3de7506..0000000
--- a/codebuild/linux-clang3-x64.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-#this buildspec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - sudo apt-get update -y
-      - sudo apt-get install clang-3.9 cmake3 dpkg python3 -y
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-
-  pre_build:
-    commands:
-      - export CC=clang-3.9
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-clang6-x64.yml b/codebuild/linux-clang6-x64.yml
deleted file mode 100644
index 74bd4bf..0000000
--- a/codebuild/linux-clang6-x64.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-version: 0.2
-#this buildspec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-      - sudo apt-add-repository "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-6.0 main"
-      - sudo apt-get update -y
-      - sudo apt-get install clang-6.0 cmake3 dpkg python3 -y -f
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-
-  pre_build:
-    commands:
-      - export CC=clang-6.0
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-clang8-x64.yml b/codebuild/linux-clang8-x64.yml
deleted file mode 100644
index 8ad136e..0000000
--- a/codebuild/linux-clang8-x64.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-version: 0.2
-#this buildspec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-      - sudo apt-add-repository "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-8 main"
-      - sudo apt-get update -y
-      - sudo apt-get install clang-8 cmake3 clang-tidy-8 clang-format-8 dpkg python3 -y -f
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-
-  pre_build:
-    commands:
-      - export CC=clang-8
-      - export CXX=clang++-8
-      - export CLANG_FORMAT=clang-format-8
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-      - clang-tidy-8 -p=$CODEBUILD_SRC_DIR/build $CODEBUILD_SRC_DIR/native/src/*.c
-      - ./codebuild/format-check.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-gcc-4x-x64.yml b/codebuild/linux-gcc-4x-x64.yml
deleted file mode 100644
index 3c94650..0000000
--- a/codebuild/linux-gcc-4x-x64.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-#this build spec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - sudo apt-get update -y
-      - sudo apt-get install gcc g++ cmake3 dpkg python3 -y
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-  pre_build:
-    commands:
-      - export CC=gcc
-      - export CXX=g++
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-gcc-5x-x64.yml b/codebuild/linux-gcc-5x-x64.yml
deleted file mode 100644
index be2b259..0000000
--- a/codebuild/linux-gcc-5x-x64.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-#this build spec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-      - sudo apt-get update -y
-      - sudo apt-get install gcc-5 cmake3 dpkg python3 -y
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-  pre_build:
-    commands:
-      - export CC=gcc-5
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-gcc-6x-x64.yml b/codebuild/linux-gcc-6x-x64.yml
deleted file mode 100644
index 863f798..0000000
--- a/codebuild/linux-gcc-6x-x64.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-#this build spec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-      - sudo apt-get update -y
-      - sudo apt-get install gcc-6 cmake3 dpkg python3 -y
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-  pre_build:
-    commands:
-      - export CC=gcc-6
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/linux-gcc-7x-x64.yml b/codebuild/linux-gcc-7x-x64.yml
deleted file mode 100644
index 0eb487f..0000000
--- a/codebuild/linux-gcc-7x-x64.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-#this build spec assumes the ubuntu 14.04 trusty image
-phases:
-  install:
-    commands:
-      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-      - sudo apt-get update -y
-      - sudo apt-get install gcc-7 cmake3 dpkg python3 -y
-      # .NET Core install instructions taken from: https://dotnet.microsoft.com/download/linux-package-manager/ubuntu14-04/sdk-current
-      - curl -L https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb --output /tmp/packages-microsoft-prod.deb
-      - sudo dpkg -i /tmp/packages-microsoft-prod.deb
-      - sudo apt-get install apt-transport-https
-      - sudo apt-get update -y
-      - sudo apt-get install dotnet-sdk-2.2 -y
-  pre_build:
-    commands:
-      - export CC=gcc-7
-      - export AWS_DOTNET_RUNTIME=linux-x64
-  build:
-    commands:
-      - echo Build started on `date`
-      - ./codebuild/common-posix.sh
-  post_build:
-    commands:
-      - echo Build completed on `date`
-
diff --git a/codebuild/windows-msvc-2015-x86.yml b/codebuild/windows-msvc-2015-x86.yml
deleted file mode 100644
index d572b83..0000000
--- a/codebuild/windows-msvc-2015-x86.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-version: 0.2
-
-phases:
-  install:
-    commands:
-      - .\codebuild\install-dotnet.bat https://download.visualstudio.microsoft.com/download/pr/df174ab6-0fcd-47cd-bc95-6a0e09e8f71b/fc7101af6ac2cdac1e0a09075490fd45/dotnet-sdk-2.2.203-win-x86.exe
-  build:
-    commands:
-      - .\codebuild\common-windows.bat -p:CMakeGenerator="Visual Studio 14 2015"
-
diff --git a/codebuild/windows-msvc-2015.yml b/codebuild/windows-msvc-2015.yml
deleted file mode 100644
index 8592158..0000000
--- a/codebuild/windows-msvc-2015.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-version: 0.2
-
-phases:
-  # download and install dotnet SDK 2.2
-  install:
-    commands:
-      - .\codebuild\install-dotnet.bat https://download.visualstudio.microsoft.com/download/pr/3c43f486-2799-4454-851c-fa7a9fb73633/673099a9fe6f1cac62dd68da37ddbc1a/dotnet-sdk-2.2.203-win-x64.exe
-  build:
-    commands:
-      - .\codebuild\common-windows.bat -p:CMakeGenerator="Visual Studio 14 2015 Win64"
-
diff --git a/codebuild/windows-msvc-2017.yml b/codebuild/windows-msvc-2017.yml
deleted file mode 100644
index 9268c8e..0000000
--- a/codebuild/windows-msvc-2017.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-version: 0.2
-
-phases:
-  # download and install dotnet SDK 2.2
-  install:
-    commands:
-      - .\codebuild\install-dotnet.bat https://download.visualstudio.microsoft.com/download/pr/3c43f486-2799-4454-851c-fa7a9fb73633/673099a9fe6f1cac62dd68da37ddbc1a/dotnet-sdk-2.2.203-win-x64.exe
-  build:
-    commands:
-      - .\codebuild\common-windows.bat -p:CMakeGenerator="Visual Studio 15 2017 Win64"
-