Deployment Target

Availability checks or attributes shouldn’t be using older versions that are satisfied by the deployment target.

• Identifier: deployment_target
• Enabled by default: Yes
• Supports autocorrection: No
• Kind: lint
• Analyzer rule: No
• Minimum Swift compiler version: 5.0.0
• Default configuration:

  Key	Value
  severity	warning
  iOSApplicationExtension_deployment_target	7.0
  iOS_deployment_target	7.0
  macOSApplicationExtension_deployment_target	10.9
  macOS_deployment_target	10.9
  tvOSApplicationExtension_deployment_target	9.0
  tvOS_deployment_target	9.0
  watchOSApplicationExtension_deployment_target	1.0
  watchOS_deployment_target	1.0

Non Triggering Examples

@available(iOS 12.0, *)
class A {}

@available(iOSApplicationExtension 13.0, *)
class A {}

@available(watchOS 4.0, *)
class A {}

@available(watchOSApplicationExtension 4.0, *)
class A {}

@available(swift 3.0.2)
class A {}

class A {}

if #available(iOS 10.0, *) {}

if #available(iOS 10, *) {}

guard #available(iOS 12.0, *) else { return }

#if #unavailable(iOS 15.0) {}

#guard #unavailable(iOS 15.0) {} else { return }

Triggering Examples

↓@available(iOS 6.0, *)
class A {}

↓@available(iOSApplicationExtension 6.0, *)
class A {}

↓@available(iOS 7.0, *)
class A {}

↓@available(iOS 6, *)
class A {}

↓@available(iOS 6.0, macOS 10.12, *)
 class A {}

↓@available(macOS 10.12, iOS 6.0, *)
 class A {}

↓@available(macOS 10.7, *)
class A {}

↓@available(macOSApplicationExtension 10.7, *)
class A {}

↓@available(OSX 10.7, *)
class A {}

↓@available(watchOS 0.9, *)
class A {}

↓@available(watchOSApplicationExtension 0.9, *)
class A {}

↓@available(tvOS 8, *)
class A {}

↓@available(tvOSApplicationExtension 8, *)
class A {}

if ↓#available(iOS 6.0, *) {}

if ↓#available(iOS 6, *) {}

guard ↓#available(iOS 6.0, *) else { return }

if ↓#unavailable(iOS 7.0) {}

if ↓#unavailable(iOS 6.9) {}

guard ↓#unavailable(iOS 7.0) {} else { return }