diff --git a/taskcluster/.shared.yml b/taskcluster/.shared.yml
index c8b5a93d..20481d0a 100644
--- a/taskcluster/.shared.yml
+++ b/taskcluster/.shared.yml
@@ -15,12 +15,6 @@ nodejs:
   packages_trusty:
     apt: 'nodejs sox'
     apt_pinning: '(echo "Package: nodejs" && echo "Pin: origin deb.nodesource.com" && echo "Pin-Priority: 999") > /etc/apt/preferences'
-    prep_4: 'echo "deb http://deb.nodesource.com/node_4.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_5: 'echo "deb http://deb.nodesource.com/node_5.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_6: 'echo "deb http://deb.nodesource.com/node_6.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_7: 'echo "deb http://deb.nodesource.com/node_7.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_8: 'echo "deb http://deb.nodesource.com/node_8.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_9: 'echo "deb http://deb.nodesource.com/node_9.x trusty main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
   packages_xenial:
     apt: 'nodejs sox'
     apt_pinning: '(echo "Package: nodejs" && echo "Pin: origin deb.nodesource.com" && echo "Pin-Priority: 999") > /etc/apt/preferences'
@@ -36,12 +30,6 @@ nodejs:
   packages_buster:
     apt: 'nodejs sox'
     apt_pinning: '(echo "Package: nodejs" && echo "Pin: origin deb.nodesource.com" && echo "Pin-Priority: 999") > /etc/apt/preferences'
-    prep_4: 'echo "deb http://deb.nodesource.com/node_4.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_5: 'echo "deb http://deb.nodesource.com/node_5.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_6: 'echo "deb http://deb.nodesource.com/node_6.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_7: 'echo "deb http://deb.nodesource.com/node_7.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_8: 'echo "deb http://deb.nodesource.com/node_8.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
-    prep_9: 'echo "deb http://deb.nodesource.com/node_9.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
     prep_10: 'echo "deb http://deb.nodesource.com/node_10.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
     prep_11: 'echo "deb http://deb.nodesource.com/node_11.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
     prep_12: 'echo "deb http://deb.nodesource.com/node_12.x buster main" > /etc/apt/sources.list.d/nodesource.list && wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -'
@@ -55,22 +43,11 @@ nodejs:
     # introduced by 0.33.5).
     setup: 'install_local_homebrew "node-ds-test" && install_pkg_local_homebrew "sox" && export NVM_DIR=$TASKCLUSTER_TASK_DIR/.nvm/ && mkdir -p $NVM_DIR  && curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh |  bash && source $NVM_DIR/nvm.sh'
     env: 'export EXTRA_ENV="PATH=$TASKCLUSTER_TASK_DIR/node-ds-test.brew/bin/:$PATH"'
-    prep_4: 'nvm install 4.9.1 && nvm use 4.9.1'
-    prep_5: 'nvm install 5.12.0 && nvm use 5.12.0'
-    prep_6: 'nvm install 6.17.1 && nvm use 6.17.1'
-    prep_7: 'nvm install 7.10.1 && nvm use 7.10.1'
-    prep_8: 'nvm install 8.16.0 && nvm use 8.16.0'
-    prep_9: 'nvm install 9.11.2 && nvm use 9.11.2'
     prep_10: 'nvm install 10.16.0 && nvm use 10.16.0'
     prep_11: 'nvm install 11.15.0 && nvm use 11.15.0'
     prep_12: 'nvm install 12.5.0 && nvm use 12.5.0'
     prep_13: 'nvm install 13.0.1 && nvm use 13.0.1'
   win:
-    prep_4: '/usr/bin/wget.exe https://nodejs.org/dist/v4.9.1/node-v4.9.1-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v4.9.1-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v4.9.1-win-x64/:$PATH'
-    prep_6: '/usr/bin/wget.exe https://nodejs.org/dist/v6.17.1/node-v6.17.1-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v6.17.1-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v6.17.1-win-x64/:$PATH'
-    prep_7: '/usr/bin/wget.exe https://nodejs.org/dist/v7.10.1/node-v7.10.1-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v7.10.1-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v7.10.1-win-x64/:$PATH'
-    prep_8: '/usr/bin/wget.exe https://nodejs.org/dist/v8.16.0/node-v8.16.0-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v8.16.0-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v8.16.0-win-x64/:$PATH'
-    prep_9: '/usr/bin/wget.exe https://nodejs.org/dist/v9.11.2/node-v9.11.2-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v9.11.2-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v9.11.2-win-x64/:$PATH'
     prep_10: '/usr/bin/wget.exe https://nodejs.org/dist/v10.16.0/node-v10.16.0-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v10.16.0-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v10.16.0-win-x64/:$PATH'
     prep_11: '/usr/bin/wget.exe https://nodejs.org/dist/v11.15.0/node-v11.15.0-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v11.15.0-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v11.15.0-win-x64/:$PATH'
     prep_12: '/usr/bin/wget.exe https://nodejs.org/dist/v12.5.0/node-v12.5.0-win-x64.zip && ""C:\Program Files\7-zip\7z.exe"" x -o$TASKCLUSTER_NODE_DIR -tzip -aoa node-v12.5.0-win-x64.zip && rm node-*.zip && export PATH=$TASKCLUSTER_TASK_DIR/bin/node-v12.5.0-win-x64/:$PATH'
diff --git a/taskcluster/examples-ffmpeg_vad_streaming-node8.yml b/taskcluster/examples-ffmpeg_vad_streaming-node12.yml
similarity index 75%
rename from taskcluster/examples-ffmpeg_vad_streaming-node8.yml
rename to taskcluster/examples-ffmpeg_vad_streaming-node12.yml
index 64034659..4d7cab43 100644
--- a/taskcluster/examples-ffmpeg_vad_streaming-node8.yml
+++ b/taskcluster/examples-ffmpeg_vad_streaming-node12.yml
@@ -1,6 +1,6 @@
 build:
   template_file: examples-base.tyml
-  docker_image: "node:8"
+  docker_image: "node:12"
   dependencies:
     - "linux-amd64-cpu-opt"
   system_setup:
@@ -9,5 +9,5 @@ build:
   args:
     tests_cmdline: "${system.homedir.linux}/DeepSpeech/examples/ffmpeg_vad_streaming/test.sh"
   metadata:
-    name: "DeepSpeech examples: ffmpeg VAD Streaming NodeJS v8.x"
-    description: "DeepSpeech examples: ffmpeg VAD Streaming NodeJS v8.x"
+    name: "DeepSpeech examples: ffmpeg VAD Streaming NodeJS v12.x"
+    description: "DeepSpeech examples: ffmpeg VAD Streaming NodeJS v12.x"
diff --git a/taskcluster/examples-nodejs_wav-node8.yml b/taskcluster/examples-nodejs_wav-node12.yml
similarity index 56%
rename from taskcluster/examples-nodejs_wav-node8.yml
rename to taskcluster/examples-nodejs_wav-node12.yml
index a7de93d7..f0b49c42 100644
--- a/taskcluster/examples-nodejs_wav-node8.yml
+++ b/taskcluster/examples-nodejs_wav-node12.yml
@@ -1,10 +1,10 @@
 build:
   template_file: examples-base.tyml
-  docker_image: "node:8"
+  docker_image: "node:12"
   dependencies:
     - "linux-amd64-cpu-opt"
   args:
     tests_cmdline: "${system.homedir.linux}/DeepSpeech/examples/nodejs_wav/test.sh"
   metadata:
-    name: "DeepSpeech examples: NodeJS WAV NodeJS v8.x"
-    description: "DeepSpeech examples: NodeJS WAV NodeJS v8.x"
+    name: "DeepSpeech examples: NodeJS WAV NodeJS v12.x"
+    description: "DeepSpeech examples: NodeJS WAV NodeJS v12.x"
diff --git a/taskcluster/tc-tests-utils.sh b/taskcluster/tc-tests-utils.sh
index 91a7ec1d..03f0a9e7 100755
--- a/taskcluster/tc-tests-utils.sh
+++ b/taskcluster/tc-tests-utils.sh
@@ -59,7 +59,7 @@ model_source_mmap="$(dirname "${model_source}")/${model_name_mmap}"
 ldc93s1_sample_filename=''
 
 SUPPORTED_PYTHON_VERSIONS=${SUPPORTED_PYTHON_VERSIONS:-3.5.7:ucs4 3.6.8:ucs4 3.7.3:ucs4 3.8.0:ucs4}
-SUPPORTED_NODEJS_VERSIONS=${SUPPORTED_NODEJS_VERSIONS:-4.9.1 5.12.0 6.17.1 7.10.1 8.16.0 9.11.2 10.16.0 11.15.0 12.5.0 13.0.1}
+SUPPORTED_NODEJS_VERSIONS=${SUPPORTED_NODEJS_VERSIONS:-10.16.0 11.15.0 12.5.0 13.0.1}
 SUPPORTED_ELECTRONJS_VERSIONS=${SUPPORTED_ELECTRONJS_VERSIONS:-1.6.18 1.7.16 1.8.8 2.0.18 3.0.16 3.1.11 4.0.3 4.1.5 4.2.5 5.0.6 6.0.11 7.0.1 7.1.2}
 
 strip() {
diff --git a/taskcluster/test-nodejs_4x-armbian-arm64-opt.yml b/taskcluster/test-nodejs_4x-armbian-arm64-opt.yml
deleted file mode 100644
index 7d9f795c..00000000
--- a/taskcluster/test-nodejs_4x-armbian-arm64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-armbian-opt-base.tyml
-  dependencies:
-    - "linux-arm64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_4} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech ARMbian ARM64 Cortex-A53 CPU NodeJS 4.x tests"
-    description: "Testing DeepSpeech forARMbian ARM64 Cortex-A53 on NodeJS v4.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_4x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_4x-darwin-amd64-opt.yml
deleted file mode 100644
index bf438e4d..00000000
--- a/taskcluster/test-nodejs_4x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_4} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 4.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v4.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_4x-raspbian-rpi3-opt.yml b/taskcluster/test-nodejs_4x-raspbian-rpi3-opt.yml
deleted file mode 100644
index ff0053ef..00000000
--- a/taskcluster/test-nodejs_4x-raspbian-rpi3-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-raspbian-opt-base.tyml
-  dependencies:
-    - "linux-rpi3-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_4} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech Raspbian RPi3/ARMv7 CPU NodeJS 4.x tests"
-    description: "Testing DeepSpeech for Raspbian RPi3/ARMv7 on NodeJS v4.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_4x-win-amd64-opt.yml b/taskcluster/test-nodejs_4x-win-amd64-opt.yml
deleted file mode 100644
index 7f03b8f9..00000000
--- a/taskcluster/test-nodejs_4x-win-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-win-opt-base.tyml
-  dependencies:
-    - "win-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${system.sox_win} && ${nodejs.win.prep_4}
-  args:
-    tests_cmdline: "${system.homedir.win}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech Windows AMD64 CPU NodeJS 4.x tests"
-    description: "Testing DeepSpeech for Windows/AMD64 on NodeJS v4.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_4x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_4x_16k-linux-amd64-opt.yml
deleted file mode 100644
index dfb7a9bf..00000000
--- a/taskcluster/test-nodejs_4x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 4.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_4x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_4x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 81994ca7..00000000
--- a/taskcluster/test-nodejs_4x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 4.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_4x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_4x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index 1f31ea0b..00000000
--- a/taskcluster/test-nodejs_4x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 4.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 4.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_4x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_4x_8k-linux-amd64-opt.yml
deleted file mode 100644
index 78e4f1e2..00000000
--- a/taskcluster/test-nodejs_4x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 4.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 4.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_4x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_4x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 29814b39..00000000
--- a/taskcluster/test-nodejs_4x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 4.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 4.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_4x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_4x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index 86af2d16..00000000
--- a/taskcluster/test-nodejs_4x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_4} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 4.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 4.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v4.x on prod model, TFLite, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_5x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_5x-darwin-amd64-opt.yml
deleted file mode 100644
index f1203f47..00000000
--- a/taskcluster/test-nodejs_5x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_5} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 5.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 5.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v5.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_5x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_5x_16k-linux-amd64-opt.yml
deleted file mode 100644
index 52a247d3..00000000
--- a/taskcluster/test-nodejs_5x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 5.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 5.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_5x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_5x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 7f467317..00000000
--- a/taskcluster/test-nodejs_5x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 5.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 5.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_5x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_5x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index ae9069e1..00000000
--- a/taskcluster/test-nodejs_5x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 5.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 5.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_5x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_5x_8k-linux-amd64-opt.yml
deleted file mode 100644
index efb74db3..00000000
--- a/taskcluster/test-nodejs_5x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 5.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 5.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_5x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_5x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 33279c3b..00000000
--- a/taskcluster/test-nodejs_5x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 5.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 5.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_5x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_5x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index bc40ba80..00000000
--- a/taskcluster/test-nodejs_5x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_5} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 5.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 5.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v5.x on prod model, TFLite, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_6x-armbian-arm64-opt.yml b/taskcluster/test-nodejs_6x-armbian-arm64-opt.yml
deleted file mode 100644
index f55ccd87..00000000
--- a/taskcluster/test-nodejs_6x-armbian-arm64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-armbian-opt-base.tyml
-  dependencies:
-    - "linux-arm64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_6} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech ARMbian ARM64 Cortex-A53 CPU NodeJS 6.x tests"
-    description: "Testing DeepSpeech forARMbian ARM64 Cortex-A53 on NodeJS v6.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_6x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_6x-darwin-amd64-opt.yml
deleted file mode 100644
index 8ea10f73..00000000
--- a/taskcluster/test-nodejs_6x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_6} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 6.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v6.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_6x-raspbian-rpi3-opt.yml b/taskcluster/test-nodejs_6x-raspbian-rpi3-opt.yml
deleted file mode 100644
index ad1f71e9..00000000
--- a/taskcluster/test-nodejs_6x-raspbian-rpi3-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-raspbian-opt-base.tyml
-  dependencies:
-    - "linux-rpi3-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_6} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech Raspbian RPi3/ARMv7 CPU NodeJS 6.x tests"
-    description: "Testing DeepSpeech for Raspbian RPi3/ARMv7 on NodeJS v6.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_6x-win-amd64-opt.yml b/taskcluster/test-nodejs_6x-win-amd64-opt.yml
deleted file mode 100644
index deb7d3b0..00000000
--- a/taskcluster/test-nodejs_6x-win-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-win-opt-base.tyml
-  dependencies:
-    - "win-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${system.sox_win} && ${nodejs.win.prep_6}
-  args:
-    tests_cmdline: "${system.homedir.win}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech Windows AMD64 CPU NodeJS 6.x tests"
-    description: "Testing DeepSpeech for Windows/AMD64 on NodeJS v6.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_6x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_6x_16k-linux-amd64-opt.yml
deleted file mode 100644
index 35ef16a2..00000000
--- a/taskcluster/test-nodejs_6x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 6.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_6x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_6x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index c1e0c788..00000000
--- a/taskcluster/test-nodejs_6x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 6.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_6x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_6x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index 9d25816a..00000000
--- a/taskcluster/test-nodejs_6x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 6.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 6.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_6x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_6x_8k-linux-amd64-opt.yml
deleted file mode 100644
index 6d3cb252..00000000
--- a/taskcluster/test-nodejs_6x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 6.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 6.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_6x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_6x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index a81f592f..00000000
--- a/taskcluster/test-nodejs_6x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 6.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 6.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_6x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_6x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index 91f6f330..00000000
--- a/taskcluster/test-nodejs_6x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_6} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 6.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 6.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v6.x on prod model, TFLite, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_7x-armbian-arm64-opt.yml b/taskcluster/test-nodejs_7x-armbian-arm64-opt.yml
deleted file mode 100644
index 74e4d101..00000000
--- a/taskcluster/test-nodejs_7x-armbian-arm64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-armbian-opt-base.tyml
-  dependencies:
-    - "linux-arm64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_7} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech ARMbian ARM64 Cortex-A53 CPU NodeJS 7.x tests"
-    description: "Testing DeepSpeech forARMbian ARM64 Cortex-A53 on NodeJS v7.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_7x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_7x-darwin-amd64-opt.yml
deleted file mode 100644
index 318527ac..00000000
--- a/taskcluster/test-nodejs_7x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_7} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 7.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v7.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_7x-raspbian-rpi3-opt.yml b/taskcluster/test-nodejs_7x-raspbian-rpi3-opt.yml
deleted file mode 100644
index 780e713f..00000000
--- a/taskcluster/test-nodejs_7x-raspbian-rpi3-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-raspbian-opt-base.tyml
-  dependencies:
-    - "linux-rpi3-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_7} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech Raspbian RPi3/ARMv7 CPU NodeJS 7.x tests"
-    description: "Testing DeepSpeech for Raspbian RPi3/ARMv7 on NodeJS v7.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_7x-win-amd64-opt.yml b/taskcluster/test-nodejs_7x-win-amd64-opt.yml
deleted file mode 100644
index d4b57a6e..00000000
--- a/taskcluster/test-nodejs_7x-win-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-win-opt-base.tyml
-  dependencies:
-    - "win-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${system.sox_win} && ${nodejs.win.prep_7}
-  args:
-    tests_cmdline: "${system.homedir.win}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech Windows AMD64 CPU NodeJS 7.x tests"
-    description: "Testing DeepSpeech for Windows/AMD64 on NodeJS v7.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_7x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_7x_16k-linux-amd64-opt.yml
deleted file mode 100644
index cf81e4d5..00000000
--- a/taskcluster/test-nodejs_7x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 7.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_7x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_7x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 11bb3136..00000000
--- a/taskcluster/test-nodejs_7x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 7.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_7x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_7x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index 71f65ffb..00000000
--- a/taskcluster/test-nodejs_7x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 7.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 7.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_7x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_7x_8k-linux-amd64-opt.yml
deleted file mode 100644
index bdeb23cf..00000000
--- a/taskcluster/test-nodejs_7x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 7.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 7.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_7x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_7x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index a57dff92..00000000
--- a/taskcluster/test-nodejs_7x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 7.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 7.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_7x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_7x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index c3ec1b2b..00000000
--- a/taskcluster/test-nodejs_7x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_7} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 7.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 7.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v7.x on prod model, TFLite, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_8x-armbian-arm64-opt.yml b/taskcluster/test-nodejs_8x-armbian-arm64-opt.yml
deleted file mode 100644
index f94eeb85..00000000
--- a/taskcluster/test-nodejs_8x-armbian-arm64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-armbian-opt-base.tyml
-  dependencies:
-    - "linux-arm64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_8} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech ARMbian ARM64 Cortex-A53 CPU NodeJS 8.x tests"
-    description: "Testing DeepSpeech forARMbian ARM64 Cortex-A53 on NodeJS v8.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_8x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_8x-darwin-amd64-opt.yml
deleted file mode 100644
index 1fdbb011..00000000
--- a/taskcluster/test-nodejs_8x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_8} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 8.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v8.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_8x-raspbian-rpi3-opt.yml b/taskcluster/test-nodejs_8x-raspbian-rpi3-opt.yml
deleted file mode 100644
index ddf759c9..00000000
--- a/taskcluster/test-nodejs_8x-raspbian-rpi3-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-raspbian-opt-base.tyml
-  dependencies:
-    - "linux-rpi3-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_8} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech Raspbian RPi3/ARMv7 CPU NodeJS 8.x tests"
-    description: "Testing DeepSpeech for Raspbian RPi3/ARMv7 on NodeJS v8.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_8x-win-amd64-opt.yml b/taskcluster/test-nodejs_8x-win-amd64-opt.yml
deleted file mode 100644
index 07bbe67e..00000000
--- a/taskcluster/test-nodejs_8x-win-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-win-opt-base.tyml
-  dependencies:
-    - "win-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${system.sox_win} && ${nodejs.win.prep_8}
-  args:
-    tests_cmdline: "${system.homedir.win}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech Windows AMD64 CPU NodeJS 8.x tests"
-    description: "Testing DeepSpeech for Windows/AMD64 on NodeJS v8.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_8x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_8x_16k-linux-amd64-opt.yml
deleted file mode 100644
index 95bfa9bd..00000000
--- a/taskcluster/test-nodejs_8x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 8.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_8x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_8x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 892de8da..00000000
--- a/taskcluster/test-nodejs_8x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 8.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_8x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_8x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index a3b45eb3..00000000
--- a/taskcluster/test-nodejs_8x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 8.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 8.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_8x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_8x_8k-linux-amd64-opt.yml
deleted file mode 100644
index 0bb30d11..00000000
--- a/taskcluster/test-nodejs_8x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 8.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 8.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_8x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_8x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index beb8735d..00000000
--- a/taskcluster/test-nodejs_8x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 8.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 8.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_8x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_8x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index c648e1c5..00000000
--- a/taskcluster/test-nodejs_8x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_8} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 8.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 8.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v8.x on prod model, TFLite, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_9x-armbian-arm64-opt.yml b/taskcluster/test-nodejs_9x-armbian-arm64-opt.yml
deleted file mode 100644
index 00fa2109..00000000
--- a/taskcluster/test-nodejs_9x-armbian-arm64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-armbian-opt-base.tyml
-  dependencies:
-    - "linux-arm64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_9} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech ARMbian ARM64 Cortex-A53 CPU NodeJS 9.x tests"
-    description: "Testing DeepSpeech forARMbian ARM64 Cortex-A53 on NodeJS v9.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_9x-darwin-amd64-opt.yml b/taskcluster/test-nodejs_9x-darwin-amd64-opt.yml
deleted file mode 100644
index d7009cb5..00000000
--- a/taskcluster/test-nodejs_9x-darwin-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-darwin-opt-base.tyml
-  dependencies:
-    - "darwin-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.brew.setup} && ${nodejs.brew.prep_9} && ${nodejs.brew.env}
-  args:
-    tests_cmdline: "$TASKCLUSTER_TASK_DIR/DeepSpeech/ds/taskcluster/tc-node-tests.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech OSX AMD64 CPU NodeJS 9.x tests"
-    description: "Testing DeepSpeech for OSX/AMD64 on NodeJS v9.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_9x-raspbian-rpi3-opt.yml b/taskcluster/test-nodejs_9x-raspbian-rpi3-opt.yml
deleted file mode 100644
index d8f9e098..00000000
--- a/taskcluster/test-nodejs_9x-raspbian-rpi3-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-raspbian-opt-base.tyml
-  dependencies:
-    - "linux-rpi3-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_buster.prep_9} && ${nodejs.packages_buster.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_buster.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech Raspbian RPi3/ARMv7 CPU NodeJS 9.x tests"
-    description: "Testing DeepSpeech for Raspbian RPi3/ARMv7 on NodeJS v9.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_9x-win-amd64-opt.yml b/taskcluster/test-nodejs_9x-win-amd64-opt.yml
deleted file mode 100644
index 88e27352..00000000
--- a/taskcluster/test-nodejs_9x-win-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-win-opt-base.tyml
-  dependencies:
-    - "win-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${system.sox_win} && ${nodejs.win.prep_9}
-  args:
-    tests_cmdline: "${system.homedir.win}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech Windows AMD64 CPU NodeJS 9.x tests"
-    description: "Testing DeepSpeech for Windows/AMD64 on NodeJS v9.x, CPU only, optimized version"
diff --git a/taskcluster/test-nodejs_9x_16k-linux-amd64-opt.yml b/taskcluster/test-nodejs_9x_16k-linux-amd64-opt.yml
deleted file mode 100644
index 314147fc..00000000
--- a/taskcluster/test-nodejs_9x_16k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_16k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_16k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 9.x tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_9x_16k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_9x_16k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index ad47ce14..00000000
--- a/taskcluster/test-nodejs_9x_16k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 9.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x on prod model, CPU only, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_9x_16k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_9x_16k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index b3c4dcc9..00000000
--- a/taskcluster/test-nodejs_9x_16k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 9.x 16k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 9.x prod tests (16kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x on prod model, TFLite, optimized version (16kHz)"
diff --git a/taskcluster/test-nodejs_9x_8k-linux-amd64-opt.yml b/taskcluster/test-nodejs_9x_8k-linux-amd64-opt.yml
deleted file mode 100644
index 0e560338..00000000
--- a/taskcluster/test-nodejs_9x_8k-linux-amd64-opt.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-    - "test-training_8k-linux-amd64-py36m-opt"
-  test_model_task: "test-training_8k-linux-amd64-py36m-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests.sh 9.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 9.x tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_9x_8k-linux-amd64-prod_pbmodel-opt.yml b/taskcluster/test-nodejs_9x_8k-linux-amd64-prod_pbmodel-opt.yml
deleted file mode 100644
index 1ee55532..00000000
--- a/taskcluster/test-nodejs_9x_8k-linux-amd64-prod_pbmodel-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-cpu-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node-tests-prod.sh 9.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 CPU NodeJS 9.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x on prod model, CPU only, optimized version (8kHz)"
diff --git a/taskcluster/test-nodejs_9x_8k_tflite-linux-amd64-prod-opt.yml b/taskcluster/test-nodejs_9x_8k_tflite-linux-amd64-prod-opt.yml
deleted file mode 100644
index c8bda556..00000000
--- a/taskcluster/test-nodejs_9x_8k_tflite-linux-amd64-prod-opt.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-build:
-  template_file: test-linux-opt-base.tyml
-  dependencies:
-    - "linux-amd64-tflite-opt"
-  system_setup:
-    >
-      ${nodejs.packages_trusty.prep_9} && ${nodejs.packages_trusty.apt_pinning} && apt-get -qq update && apt-get -qq -y install ${nodejs.packages_trusty.apt}
-  args:
-    tests_cmdline: "${system.homedir.linux}/DeepSpeech/ds/taskcluster/tc-node_tflite-tests-prod.sh 9.x 8k"
-  metadata:
-    name: "DeepSpeech Linux AMD64 TFLite NodeJS 9.x prod tests (8kHz)"
-    description: "Testing DeepSpeech for Linux/AMD64 on NodeJS v9.x on prod model, TFLite, optimized version (8kHz)"