diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11a8f301c..d2cc72d16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,8 @@ in a future release.
 
 ### Added
 
+- SqlSetup
+  - Added support for major version upgrade ([issue #1561](https://github.com/dsccommunity/SqlServerDsc/issues/1561)).
 - SqlServerDsc
   - Added new resource SqlServerProtocol ([issue #1377](https://github.com/dsccommunity/SqlServerDsc/issues/1377)).
   - Added new resource SqlServerProtocolTcpIp ([issue #1378](https://github.com/dsccommunity/SqlServerDsc/issues/1378)).
diff --git a/README.md b/README.md
index 9e4dacf25..60433eefd 100644
--- a/README.md
+++ b/README.md
@@ -1899,6 +1899,7 @@ Installs SQL Server on the target node.
   * SqlTempdbFileGrowth
   * SqlTempdbLogFileSize
   * SqlTempdbLogFileGrowth
+* Major version upgrades are supported if the action "upgrade" is specified.
 
 > **Note:** It is not possible to add or remove features to a SQL Server failover
 cluster. This is a limitation of SQL Server. See article
diff --git a/source/DSCResources/DSC_SqlSetup/DSC_SqlSetup.psm1 b/source/DSCResources/DSC_SqlSetup/DSC_SqlSetup.psm1
index 916d9c236..f65a441e3 100644
--- a/source/DSCResources/DSC_SqlSetup/DSC_SqlSetup.psm1
+++ b/source/DSCResources/DSC_SqlSetup/DSC_SqlSetup.psm1
@@ -2190,6 +2190,21 @@ function Test-TargetResource
         }
     }
 
+    if ($getTargetResourceParameters.Action -eq 'Upgrade')
+    {
+        $installerSqlVersion = Get-SqlMajorVersion -Path (Join-Path -Path $sourcePath -ChildPath 'setup.exe')
+        $instanceSqlVersion = Get-SQLInstanceMajorVersion -InstanceName $InstanceName
+
+        if ($installerSQLVersion -gt $instanceSqlVersion)
+        {
+            Write-Verbose -Message (
+                $script:localizedData.DifferentMajorVersion -f $InstanceName, $instanceSqlVersion, $installerSqlVersion
+            )
+
+            $result = $false
+        }
+    }
+
     return $result
 }
 
diff --git a/source/DSCResources/DSC_SqlSetup/en-US/DSC_SqlSetup.strings.psd1 b/source/DSCResources/DSC_SqlSetup/en-US/DSC_SqlSetup.strings.psd1
index 8a0383e51..698af2127 100644
--- a/source/DSCResources/DSC_SqlSetup/en-US/DSC_SqlSetup.strings.psd1
+++ b/source/DSCResources/DSC_SqlSetup/en-US/DSC_SqlSetup.strings.psd1
@@ -63,4 +63,5 @@ ConvertFrom-StringData @'
     MasterDataServicesFeatureNotFound = Master Data Services (MDS) feature not detected.
     FeatureAlreadyInstalled = The feature '{0}' is already installed so it will not be installed again.
     FeatureFlag = Using feature flag '{0}'
+    DifferentMajorVersion = The instance '{0}' has the wrong major version. The major version is '{1}', but expected version '{2}'.
 '@
diff --git a/source/DSCResources/DSC_SqlSetup/sv-SE/DSC_SqlSetup.strings.psd1 b/source/DSCResources/DSC_SqlSetup/sv-SE/DSC_SqlSetup.strings.psd1
index 95d5d65c2..d616f9e79 100644
--- a/source/DSCResources/DSC_SqlSetup/sv-SE/DSC_SqlSetup.strings.psd1
+++ b/source/DSCResources/DSC_SqlSetup/sv-SE/DSC_SqlSetup.strings.psd1
@@ -63,4 +63,5 @@ ConvertFrom-StringData @'
     MasterDataServicesFeatureNotFound = Master Data Services (MDS) funktionen hittades inte.
     FeatureAlreadyInstalled = Funktionen '{0}' är redan installerad så den kommer inte bli installerad igen.
     FeatureFlag = Använder tilläggsflagga '{0}'
+    DifferentMajorVersion = The instance '{0}' has the wrong major version. The major version is '{1}', but expected version '{2}'.
 '@
diff --git a/tests/Unit/DSC_SqlSetup.Tests.ps1 b/tests/Unit/DSC_SqlSetup.Tests.ps1
index 939b19fbd..eab88e903 100644
--- a/tests/Unit/DSC_SqlSetup.Tests.ps1
+++ b/tests/Unit/DSC_SqlSetup.Tests.ps1
@@ -1490,6 +1490,8 @@ try
 
         Describe 'SqlSetup\Test-TargetResource' -Tag 'Test' {
             BeforeAll {
+                $mockSourcePath = $TestDrive.FullName
+
                 <#
                     These are written with both lower-case and upper-case to make sure we support that.
                     The feature list must be written in the order it is returned by the function Get-TargetResource.
@@ -1591,6 +1593,39 @@ try
                         Assert-MockCalled -CommandName Get-TargetResource -Exactly -Times 1 -Scope 'It'
                     }
                 }
+
+                Context 'When Action is set to ''Upgrade'' and current major version is not the expected' {
+                    BeforeAll {
+                        $testParameters = $mockDefaultParameters.Clone()
+                        $testParameters += @{
+                            Action = 'Upgrade'
+                            InstanceName = $mockDefaultInstance_InstanceName
+                            SourceCredential = $null
+                            SourcePath = $mockSourcePath
+                        }
+
+                        Mock -CommandName Get-TargetResource -MockWith {
+                            return @{
+                                Features = $mockDefaultFeatures
+                            }
+                        }
+
+                        Mock -CommandName Get-SqlMajorVersion -MockWith {
+                            return '15'
+                        }
+
+                        Mock -CommandName Get-SQLInstanceMajorVersion -MockWith {
+                            return '14'
+                        }
+                    }
+
+                    It 'Should return $false' {
+                        $result = Test-TargetResource @testParameters -Verbose
+                        $result | Should -BeFalse
+
+                        Assert-MockCalled -CommandName Get-TargetResource -Exactly -Times 1 -Scope 'It'
+                    }
+                }
             }
 
             Context "When the system is in the desired state" {