Error NETSDK1045: The current .NET SDK does not support targeting .NET 6.0

I found the solution here https://jaliyaudagedara.blogspot.com/2021/07/azure-devops-building-projects.html
It works if I specify the .NET Core SDK version & set preview version to true

- task: UseDotNet@2
  displayName: 'Use .NET Core sdk'
  inputs:
    packageType: 'sdk'
    version: '6.0.x'
    includePreviewVersions: true

So my final pipelines looks something like this

# .NET Core Function App to Windows on Azure
# Build a .NET Core function app and deploy it to Azure as a Windows function App.
# Add steps that analyze code, save build artifacts, deploy, and more:
# https://learn.microsoft.com/en-us/azure/devops/pipelines/languages/dotnet-core

trigger:
- master
- main
- dev

variables:
  azureSubscription: 'XXXX'
  functionAppName: 'XXXX'
  vmImageName: 'windows-latest'
  workingDirectory: '$(System.DefaultWorkingDirectory)/XXXX'

stages:
- stage: Build
  displayName: Build stage

  jobs:
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)

    steps:
    - task: UseDotNet@2
      displayName: 'Use .NET 6 Core sdk'
      inputs:
        packageType: 'sdk'
        version: '6.0.x'
        includePreviewVersions: true

    - task: DotNetCoreCLI@2
      displayName: Build
      inputs:
        command: 'build'
        projects: |
          $(workingDirectory)/*.csproj
        arguments: --output $(System.DefaultWorkingDirectory)/publish_output --configuration Release

    - task: ArchiveFiles@2
      displayName: 'Archive files'
      inputs:
        rootFolderOrFile: '$(System.DefaultWorkingDirectory)/publish_output'
        includeRootFolder: false
        archiveType: zip
        archiveFile: $(Build.ArtifactStagingDirectory)/$(Build.BuildId).zip
        replaceExistingArchive: true

    - publish: $(Build.ArtifactStagingDirectory)/$(Build.BuildId).zip
      artifact: drop

- stage: Deploy
  displayName: Deploy stage
  dependsOn: Build
  condition: succeeded()

  jobs:
  - deployment: Deploy
    displayName: Deploy
    environment: 'development'
    pool:
      vmImage: $(vmImageName)

    strategy:
      runOnce:
        deploy:

          steps:
          - task: AzureFunctionApp@1
            displayName: 'Azure functions app deploy'
            inputs:
              azureSubscription: '$(azureSubscription)'
              appType: functionApp
              appName: $(functionAppName)
              package: '$(Pipeline.Workspace)/drop/$(Build.BuildId).zip'