diff --git a/core/modules/update/src/ModuleVersion.php b/core/modules/update/src/ModuleVersion.php
index b43e63680a..94297824d9 100644
--- a/core/modules/update/src/ModuleVersion.php
+++ b/core/modules/update/src/ModuleVersion.php
@@ -168,7 +168,7 @@ public function getVersionExtra() {
   public function getSupportBranch() {
     $branch = $this->useCorePrefix ? static::CORE_COMPATIBILITY_PREFIX : '';
     $branch .= $this->majorVersion . '.';
-    if ($this->minorVersion) {
+    if ($this->minorVersion !== NULL) {
       $branch .= $this->minorVersion . '.';
     }
     return $branch;
diff --git a/core/modules/update/tests/src/Unit/ModuleVersionTest.php b/core/modules/update/tests/src/Unit/ModuleVersionTest.php
index 53ec2079f0..dcb3c10e60 100644
--- a/core/modules/update/tests/src/Unit/ModuleVersionTest.php
+++ b/core/modules/update/tests/src/Unit/ModuleVersionTest.php
@@ -95,6 +95,26 @@ public function providerVersionInfos() {
           'branch' => '8.x-1.',
         ],
       ],
+      '8.x-1.0' => [
+        '8.x-1.0',
+        [
+          'major' => '1',
+          'minor' => NULL,
+          'patch' => '0',
+          'extra' => NULL,
+          'branch' => '8.x-1.',
+        ],
+      ],
+      '8.x-1.0-dev' => [
+        '8.x-1.0-dev',
+        [
+          'major' => '1',
+          'minor' => NULL,
+          'patch' => '0',
+          'extra' => 'dev',
+          'branch' => '8.x-1.',
+        ],
+      ],
       '8.x-1.3-dev' => [
         '8.x-1.3-dev',
         [
@@ -105,6 +125,26 @@ public function providerVersionInfos() {
           'branch' => '8.x-1.',
         ],
       ],
+      '0.1' => [
+        '0.1',
+        [
+          'major' => '0',
+          'minor' => NULL,
+          'patch' => '1',
+          'extra' => NULL,
+          'branch' => '0.',
+        ],
+      ],
+      '1.0' => [
+        '1.0',
+        [
+          'major' => '1',
+          'minor' => NULL,
+          'patch' => '0',
+          'extra' => NULL,
+          'branch' => '1.',
+        ],
+      ],
       '1.3' => [
         '1.3',
         [
@@ -115,6 +155,16 @@ public function providerVersionInfos() {
           'branch' => '1.',
         ],
       ],
+      '1.0-dev' => [
+        '1.0-dev',
+        [
+          'major' => '1',
+          'minor' => NULL,
+          'patch' => '0',
+          'extra' => 'dev',
+          'branch' => '1.',
+        ],
+      ],
       '1.3-dev' => [
         '1.3-dev',
         [
@@ -125,6 +175,36 @@ public function providerVersionInfos() {
           'branch' => '1.',
         ],
       ],
+      '0.2.0' => [
+        '0.2.0',
+        [
+          'major' => '0',
+          'minor' => '2',
+          'patch' => '0',
+          'extra' => NULL,
+          'branch' => '0.2.',
+        ],
+      ],
+      '1.2.0' => [
+        '1.2.0',
+        [
+          'major' => '1',
+          'minor' => '2',
+          'patch' => '0',
+          'extra' => NULL,
+          'branch' => '1.2.',
+        ],
+      ],
+      '1.0.3' => [
+        '1.0.3',
+        [
+          'major' => '1',
+          'minor' => '0',
+          'patch' => '3',
+          'extra' => NULL,
+          'branch' => '1.0.',
+        ],
+      ],
       '1.2.3' => [
         '1.2.3',
         [
@@ -135,6 +215,16 @@ public function providerVersionInfos() {
           'branch' => '1.2.',
         ],
       ],
+      '1.2.0-dev' => [
+        '1.2.0-dev',
+        [
+          'major' => '1',
+          'minor' => '2',
+          'patch' => '0',
+          'extra' => 'dev',
+          'branch' => '1.2.',
+        ],
+      ],
       '1.2.3-dev' => [
         '1.2.3-dev',
         [
@@ -145,6 +235,16 @@ public function providerVersionInfos() {
           'branch' => '1.2.',
         ],
       ],
+      '1.0.x' => [
+        '1.0.x',
+        [
+          'major' => '1',
+          'minor' => '0',
+          'patch' => NULL,
+          'extra' => NULL,
+          'branch' => '1.0.',
+        ],
+      ],
       '1.2.x' => [
         '1.2.x',
         [