Latest version of fastlane has new commands for my blog post on simple react native ios releases

Fastfile

default_platform(:ios)

platform :ios do
  desc "Push a new beta build to TestFlight"
  desc "This will also make sure the profile is up to date"  
  lane :beta do
    # UI.important "Important Message"
    # UI.error "O NO!"
    # UI.message "Basic blah"
    answer = UI.select("Would you like to add a Changelog?", ["Yes", "No"])
    changelog = ask('Type Changelog message:') if answer == "Yes"
    
    # Get latest certs appstore
    match(type: 'appstore')
    
    increment_build_number(xcodeproj: "AppName.xcodeproj")
    build_app(scheme: "AppNameApp")
    
    if changelog
      upload_to_testflight(changelog: changelog)
    else
      upload_to_testflight
    end    
    
    slack(
      message: "App successfully released",
      channel: "#myAppChannel"
    )    
  end
end