diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d8323d7..6204692 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,26 +7,32 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        branch: [devel] # [version-1-2, devel] - # 1.2 doesn't compile https://github.com/mratsim/constantine/pull/20#issuecomment-646327952
+        branch: [version-1-4] # [version-1-4, devel]
         target:
           - os: linux
             cpu: amd64
             TEST_LANG: c
+            BACKEND: NO_ASM
           - os: linux
             cpu: amd64
             TEST_LANG: cpp
+            BACKEND: NO_ASM
           - os: linux
             cpu: i386
             TEST_LANG: c
+            BACKEND: NO_ASM
           - os: linux
             cpu: i386
             TEST_LANG: cpp
+            BACKEND: NO_ASM
           - os: macos
             cpu: amd64
             TEST_LANG: c
+            BACKEND: NO_ASM
           - os: macos
             cpu: amd64
             TEST_LANG: cpp
+            BACKEND: NO_ASM
           # TODO:
           #   1. Modulo/reduce bug on 32-bit
           #   2. ModInverse bug on all windows
@@ -42,6 +48,31 @@ jobs:
           # - os: windows
           #   cpu: i386
           #   TEST_LANG: cpp
+          # ----------------------------
+          - os: linux
+            cpu: amd64
+            TEST_LANG: c
+            BACKEND: ASM
+          - os: linux
+            cpu: amd64
+            TEST_LANG: cpp
+            BACKEND: ASM
+          - os: linux
+            cpu: i386
+            TEST_LANG: c
+            BACKEND: ASM
+          - os: linux
+            cpu: i386
+            TEST_LANG: cpp
+            BACKEND: ASM
+          - os: macos
+            cpu: amd64
+            TEST_LANG: c
+            BACKEND: ASM
+          - os: macos
+            cpu: amd64
+            TEST_LANG: cpp
+            BACKEND: ASM
         include:
           - target:
               os: linux
@@ -52,7 +83,7 @@ jobs:
           # - target:
           #     os: windows
           #   builder: windows-2019
-    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}-${{ matrix.target.TEST_LANG }} (${{ matrix.branch }})'
+    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}-${{ matrix.target.TEST_LANG }}-${{ matrix.target.BACKEND }} (${{ matrix.branch }})'
     runs-on: ${{ matrix.builder }}
     steps:
       - name: Cancel Previous Runs
@@ -203,28 +234,28 @@ jobs:
           nimble refresh
           nimble install -y gmp stew jsony
       - name: Run Constantine tests (with Assembler & with GMP)
-        if: (runner.os == 'Linux' || runner.os == 'macOS') && matrix.target.cpu == 'amd64'
+        if: (runner.os == 'Linux' || runner.os == 'macOS') && matrix.target.BACKEND == 'ASM' && matrix.target.cpu != 'i386'
         shell: bash
         run: |
           export UCPU="$cpu"
           cd constantine
           nimble test_parallel
       - name: Run Constantine tests (no Assembler & with GMP)
-        if: (runner.os == 'Linux' || runner.os == 'macOS') && matrix.target.cpu == 'amd64'
+        if: (runner.os == 'Linux' || runner.os == 'macOS') && matrix.target.BACKEND == 'NO_ASM' && matrix.target.cpu != 'i386'
         shell: bash
         run: |
           export UCPU="$cpu"
           cd constantine
           nimble test_parallel_no_assembler
       - name: Run Constantine tests (without GMP)
-        if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
+        if: runner.os == 'Linux' && matrix.target.BACKEND == 'ASM' && matrix.target.cpu == 'i386'
         shell: bash
         run: |
           export UCPU="$cpu"
           cd constantine
           nimble test_parallel_no_gmp
       - name: Run Constantine tests (without Assembler or GMP)
-        if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
+        if: runner.os == 'Linux' && matrix.target.BACKEND == 'NO_ASM' && matrix.target.cpu == 'i386'
         shell: bash
         run: |
           export UCPU="$cpu"
diff --git a/.travis.yml b/.travis.yml
index e29d4aa..bc6670d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,15 +22,15 @@ matrix:
       arch: arm64
       env:
         - ARCH=arm64
-        - CHANNEL=devel
+        - CHANNEL=stable
       compiler: gcc
 
-    - dist: bionic
-      arch: ppc64le
-      env:
-        - ARCH=powerpc64el
-        - CHANNEL=devel
-      compiler: gcc
+    # - dist: bionic
+    #   arch: ppc64le
+    #   env:
+    #     - ARCH=powerpc64el
+    #     - CHANNEL=stable
+    #   compiler: gcc
 
     # "Unknown processor s390x"
     # - dist: bionic
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 535e3fd..785589c 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -10,26 +10,30 @@ strategy:
     #   UCPU: i686
     #   CHANNEL: devel
     #   TEST_LANG: c
-    Windows_devel_64bit:
+    Windows_stable_noasm_64bit:
       VM: 'windows-latest'
       UCPU: amd64
-      CHANNEL: devel
+      CHANNEL: stable
       TEST_LANG: c
-    Windows_cpp_devel_64bit:
+      BACKEND: NO_ASM
+    Windows_cpp_stable_noasm_64bit:
       VM: 'windows-latest'
       UCPU: amd64
-      CHANNEL: devel
+      CHANNEL: stable
       TEST_LANG: cpp
-    Linux_devel_64bit:
+      BACKEND: NO_ASM
+    Linux_stable_noasm_64bit:
       VM: 'ubuntu-18.04'
       UCPU: amd64
-      CHANNEL: devel
+      CHANNEL: stable
       TEST_LANG: c
-    Linux_cpp_devel_64bit:
+      BACKEND: NO_ASM
+    Linux_cpp_stable_noasm_64bit:
       VM: 'ubuntu-18.04'
       UCPU: amd64
-      CHANNEL: devel
+      CHANNEL: stable
       TEST_LANG: cpp
+      BACKEND: NO_ASM
 
     # Deactivated for now, this is cross-compilation and tricky to get right
     # Linux_devel_32bit:
@@ -38,11 +42,47 @@ strategy:
     #   CHANNEL: devel
     #   TEST_LANG: c
 
-    MacOS_devel_64bit:
+    MacOS_stable_noasm_64bit:
       VM: 'macOS-10.15'
       UCPU: amd64
-      CHANNEL: devel
+      CHANNEL: stable
       TEST_LANG: c
+      BACKEND: NO_ASM
+
+    # -------------------------------
+
+    # No assembly for windows
+    # Windows_devel_64bit:
+    #   VM: 'windows-latest'
+    #   UCPU: amd64
+    #   CHANNEL: stable
+    #   TEST_LANG: c
+    #   BACKEND: ASM
+    # Windows_cpp_devel_64bit:
+    #   VM: 'windows-latest'
+    #   UCPU: amd64
+    #   CHANNEL: stable
+    #   TEST_LANG: cpp
+    #   BACKEND: ASM
+    Linux_stable_asm_64bit:
+      VM: 'ubuntu-18.04'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: c
+      BACKEND: ASM
+    Linux_cpp_stable_asm_64bit:
+      VM: 'ubuntu-18.04'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: cpp
+      BACKEND: ASM
+    MacOS_stable_asm_64bit:
+      VM: 'macOS-10.15'
+      UCPU: amd64
+      CHANNEL: stable
+      TEST_LANG: c
+      BACKEND: ASM
+
 pool:
   vmImage: $(VM)
 
@@ -188,6 +228,12 @@ steps:
       popd # exit NimBinaries
     displayName: 'Building Nim'
 
+   # https://forum.nim-lang.org/t/7494
+  - powershell: |
+      bitsadmin.exe /rawreturn /transfer "cURL-certicates" /priority FOREGROUND https://curl.se/ca/cacert.pem $pwd\NimBinaries\nim-$(CHANNEL)\bin\cacert.pem
+    displayName: 'cURL certificates (Windows)'
+    condition: eq(variables['Agent.OS'], 'Windows_NT')
+
   - powershell: |
       echo "##vso[task.prependpath]$pwd\NimBinaries\nim-$(CHANNEL)\bin"
     displayName: 'Set env variable (Windows)'
@@ -230,14 +276,14 @@ steps:
       export ucpu=${UCPU}
       nimble test_parallel
     displayName: 'Testing Constantine with Assembler and with GMP'
-    condition: ne(variables['Agent.OS'], 'Windows_NT')
+    condition: and(ne(variables['Agent.OS'], 'Windows_NT'), eq(variables['BACKEND'], 'ASM'))
 
   - bash: |
       echo "PATH=${PATH}"
       export ucpu=${UCPU}
       nimble test_parallel_no_assembler
     displayName: 'Testing Constantine without Assembler and with GMP'
-    condition: ne(variables['Agent.OS'], 'Windows_NT')
+    condition: and(ne(variables['Agent.OS'], 'Windows_NT'), eq(variables['BACKEND'], 'NO_ASM'))
 
   - bash: |
       echo "PATH=${PATH}"