consolidate and redirect this content into the Swift 6 migration guide hosted content

Author: heckj

documentation/concurrency/index.md

@@ -2,63 +2,9 @@
 layout: page
 date: 2024-03-03 12:00:00
 title: Enabling Complete Concurrency Checking
+redirect_to: https://www.swift.org/migration/documentation/swift-6-concurrency-migration-guide/enabledataracesafety
 ---
+<meta http-equiv="refresh" content="0; url=https://www.swift.org/migration/documentation/swift-6-concurrency-migration-guide/">
+<link rel="canonical" href="https://www.swift.org/migration/documentation/swift-6-concurrency-migration-guide/" />
 
-Data-race safety in the Swift 6 language mode is designed for incremental migration. You can address data-race safety issues in your projects module-by-module, and you can enable the compiler's actor isolation and `Sendable` checking as warnings in the Swift 5 language mode, allowing you to assess your progress toward eliminating data races before turning on the Swift 6 language mode.
-
-Complete data-race safety checking can be enabled as warnings in the Swift 5 language mode using the `-strict-concurrency` compiler flag.
-
-## Using the Swift compiler
-
-To enable complete concurrency checking when running `swift` or `swiftc` directly at the command line, pass `-strict-concurrency=complete`:
-
-```
-~ swift -strict-concurrency=complete main.swift
-```
-
-## Using SwiftPM
-
-### In a SwiftPM command-line invocation
-
-`-strict-concurrency=complete` can be passed in a Swift package manager command-line invocation using the `-Xswiftc` flag:
-
-```
-~ swift build -Xswiftc -strict-concurrency=complete
-~ swift test -Xswiftc -strict-concurrency=complete
-```
-
-This can be useful to gauge the amount of concurrency warnings before adding the flag permanently in the package manifest as described in the following section.
-
-### In a SwiftPM package manifest
-
-To enable complete concurrency checking for a target in a Swift package using Swift 5.9 or Swift 5.10 tools, use [`SwiftSetting.enableExperimentalFeature`](https://developer.apple.com/documentation/packagedescription/swiftsetting/enableexperimentalfeature(_:_:)) in the Swift settings for the given target:
-
-```swift
-.target(
-  name: "MyTarget",
-  swiftSettings: [
-    .enableExperimentalFeature("StrictConcurrency")
-  ]
-)
-```
-
-When using Swift 6.0 tools or later, use [`SwiftSetting.enableUpcomingFeature`](https://developer.apple.com/documentation/packagedescription/swiftsetting/enableupcomingfeature(_:_:)) in the Swift settings for the given target:
-
-```swift
-.target(
-  name: "MyTarget",
-  swiftSettings: [
-    .enableUpcomingFeature("StrictConcurrency")
-  ]
-)
-```
-
-## Using Xcode
-
-To enable complete concurrency checking in an Xcode project, set the "Strict Concurrency Checking" setting to "Complete" in the Xcode build settings. Alternatively, you can set `SWIFT_STRICT_CONCURRENCY` to `complete` in an xcconfig file:
-
-```
-// In a Settings.xcconfig
-
-SWIFT_STRICT_CONCURRENCY = complete;
-```
+This page should redirect automatically to https://www.swift.org/migration/documentation/swift-6-concurrency-migration-guide