diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d7414c1d..75ed8497 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -342,22 +342,6 @@ VS2017-64-bit-shared-no-apps:
     paths:
       - build-release/*.exe
 
-
-VS2017-32-bit-shared-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2017"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2017
-  artifacts:
-    paths:
-      - build-release/*.exe
-      
-
 VS2017-64-bit-static-no-apps:
   stage: build
   variables:
@@ -372,21 +356,6 @@ VS2017-64-bit-static-no-apps:
     paths:
       - build-release/*.exe
 
-
-VS2017-32-bit-static-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2017"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2017
-  artifacts:
-    paths:
-      - build-release/*.exe
-
 VS2015-64-bit-shared-apps:
   stage: build
   variables:
@@ -416,34 +385,6 @@ VS2015-64-bit-shared-no-apps:
     paths:
       - build-release/*.exe
 
-VS2015-32-bit-shared-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "ON"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-
-VS2015-32-bit-shared-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-      
 VS2015-64-bit-static-apps:
   stage: build
   variables:
@@ -472,34 +413,6 @@ VS2015-64-bit-static-no-apps:
     paths:
       - build-release/*.exe
 
-VS2015-32-bit-static-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "ON"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-
-VS2015-32-bit-static-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-
 Doc-publish:
   stage: deploy
   only:
diff --git a/CI/gitlab-ci/windows.yml b/CI/gitlab-ci/windows.yml
index d8ebdf03..5577eaf7 100644
--- a/CI/gitlab-ci/windows.yml
+++ b/CI/gitlab-ci/windows.yml
@@ -47,22 +47,6 @@ VS2017-64-bit-shared-no-apps:
     paths:
       - build-release/*.exe
 
-
-VS2017-32-bit-shared-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2017"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2017
-  artifacts:
-    paths:
-      - build-release/*.exe
-      
-
 VS2017-64-bit-static-no-apps:
   stage: build
   variables:
@@ -77,21 +61,6 @@ VS2017-64-bit-static-no-apps:
     paths:
       - build-release/*.exe
 
-
-VS2017-32-bit-static-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2017"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2017
-  artifacts:
-    paths:
-      - build-release/*.exe
-
 VS2015-64-bit-shared-apps:
   stage: build
   variables:
@@ -121,34 +90,6 @@ VS2015-64-bit-shared-no-apps:
     paths:
       - build-release/*.exe
 
-VS2015-32-bit-shared-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "ON"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-
-VS2015-32-bit-shared-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "TRUE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-      
 VS2015-64-bit-static-apps:
   stage: build
   variables:
@@ -176,31 +117,3 @@ VS2015-64-bit-static-no-apps:
   artifacts:
     paths:
       - build-release/*.exe
-
-VS2015-32-bit-static-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "ON"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
-
-VS2015-32-bit-static-no-apps:
-  stage: build
-  variables:
-    BUILD_PLATFORM: "VS2015"
-    ARCHITECTURE:   "x32"
-    SHARED:         "FALSE"
-    APPS:           "OFF"
-  script: "CI\\Windows.bat"
-  tags:
-    - VS2015
-  artifacts:
-    paths:
-      - build-release/*.exe
diff --git a/Doc/changelog.docu b/Doc/changelog.docu
index 01064595..4e4e742e 100644
--- a/Doc/changelog.docu
+++ b/Doc/changelog.docu
@@ -6,6 +6,22 @@
 
 <!-- --------------------------------------------------------------------- -->
 
+
+<tr valign=top><td><b>9.0</b> (?/?/?)</td><td>
+
+<b>Breaking Changes</b>
+<ul>
+<li>Dropped 32-bit Windows continuous integration and artifact builds.</li>
+</ul>
+
+<b>Build System</b>
+<ul>
+<li>Dropped 32-bit Windows continuous integration and artifact builds.</li>
+</ul>
+
+</tr>
+
+
 <tr valign=top><td><b>8.1</b> (2020/04/23)</td><td>
 
 <b>Breaking Changes</b>
diff --git a/VERSION b/VERSION
index b81fb1ea..77582fff 100644
--- a/VERSION
+++ b/VERSION
@@ -1,6 +1,6 @@
-VERSION=8.1
-MAJOR=8
-MINOR=1
+VERSION=9.0
+MAJOR=9
+MINOR=0
 PATCH=0
 ID=OPENMESH
 
diff --git a/src/OpenMesh/Core/System/config.h b/src/OpenMesh/Core/System/config.h
index adba98ec..9d09ade6 100644
--- a/src/OpenMesh/Core/System/config.h
+++ b/src/OpenMesh/Core/System/config.h
@@ -65,7 +65,7 @@
 // ----------------------------------------------------------------------------
 
 
-#define OM_VERSION 0x80100
+#define OM_VERSION 0x90000
 //#define OM_VERSION 0x70200
 
 #define OM_GET_VER ((OM_VERSION & 0xf0000) >> 16)