v2.1.0: Swift 6 strict concurrency#20
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Bumps the package to swift-tools-version 6.0 and enables Swift 6
language mode (strict concurrency checking) on all targets via
swiftLanguageMode(.v6) in swiftSettings.
The library compiles clean under both default Swift 6 mode and the
maximally-strict `-strict-concurrency=complete -warnings-as-errors`
flag combination — no source changes required. The v2.0 rewrite was
already concurrency-correct by design:
* All public value types declared Sendable explicitly
* Mutable state lives behind actors (MulticastListener, TaskBox)
* Cross-actor communication uses `Task { ... }` indirection
* No mutable globals — os.Logger instances are Sendable, SSDPLog is
an enum-namespace
* Network.framework types (NWConnectionGroup, NWConnection, NWParameters)
are Sendable in iOS 17+ SDKs (our floor)
* `@Sendable` annotations on the closures handed to onTermination
Turning on enforcement validates the design.
Verification
------------
* swift build -Xswiftc -strict-concurrency=complete -Xswiftc -warnings-as-errors
— clean
* swift test — 32/32 pass
* Live LAN: ssdp-demo search ssdp:all --timeout 3 — 93 results
including Sonos ZPS45, no regressions
* swift build --package-path Examples/ssdp-demo — clean
Requirements
------------
Now requires Swift 6.0+ / Xcode 16+. Library platforms unchanged
(iOS 17, macOS 14, tvOS 17). README's "Requirements" section updated.
The Swift badge bumped from 5.9 to 6.
Version constant bumped to 2.1.0 (minor — strict concurrency is a
build-time check, not a public API change; existing call sites still
compile unchanged).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Bumps the package to
swift-tools-version:6.0and enables Swift 6 language mode (strict concurrency checking) on all targets viaswiftLanguageMode(.v6).What changed
The library compiles clean under both default Swift 6 mode and the maximally-strict
-strict-concurrency=complete -warnings-as-errorscombination — no source changes required. The v2.0 rewrite was already concurrency-correct by design; this PR just turns on enforcement.Why no source fixes were needed
The v2 rewrite was deliberately built strict-concurrency-aware even while skipping the language-mode bump:
SendableexplicitlyMulticastListener,TaskBox)Task { ... }indirectionos.Loggerinstances areSendable,SSDPLogis an enum-namespaceNetwork.frameworktypes areSendablein iOS 17+ SDKs (our floor)@Sendableannotations on closures handed toonTerminationTurning on enforcement validates the design.
Verification
swift build -Xswiftc -strict-concurrency=complete -Xswiftc -warnings-as-errorsswift testssdp-demo search ssdp:all --timeout 3swift build --package-path Examples/ssdp-demoRequirements bump
Now requires Swift 6.0+ / Xcode 16+. Library platforms unchanged. Version constant bumped to 2.1.0 (minor — strict concurrency is a build-time check, not a public API change; existing call sites still compile unchanged).
🤖 Generated with Claude Code