diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3601aa2..c5ce056 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
   apple:
     if: github.event_name != 'pull_request' || !contains(github.event.pull_request.title, '[skip ci]')
     name: ${{ matrix.platform }} (Swift ${{ matrix.swift }})
-    runs-on: macos-15
+    runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
       matrix:
@@ -46,9 +46,13 @@ jobs:
           - watchOS
           - visionOS
         swift:
-          - "6.0"
           - "6.1"
           - "6.2"
+        include:
+          - swift: "6.1"
+            runner: macos-15
+          - swift: "6.2"
+            runner: macos-26
     steps:
       - name: Git Checkout
         uses: actions/checkout@v5
@@ -88,7 +92,6 @@ jobs:
       fail-fast: false
       matrix:
         swift:
-          - "6.0"
           - "6.1"
           - "6.2"
     container:
@@ -107,7 +110,6 @@ jobs:
       fail-fast: false
       matrix:
         swift:
-          - "6.0"
           - "6.1"
           - "6.2"
     steps:
@@ -118,6 +120,4 @@ jobs:
         uses: skiptools/swift-android-action@v2
         with:
           swift-version: ${{ matrix.swift }}
-          build-tests: ${{ matrix.swift != '6.0' }}
-          run-tests: ${{ matrix.swift != '6.0' }}
           free-disk-space: true
diff --git a/.swift-version b/.swift-version
index e0ea36f..a435f5a 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-6.0
+6.1
diff --git a/Package.resolved b/Package.resolved
index e3b7376..16de199 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,5 +1,5 @@
 {
-  "originHash" : "19c1dbe5af5c4e70b36063f413197273c689e9b361ec7235066c9e0dc8c68903",
+  "originHash" : "68d4ae9498eac8062a7efc2b0d381a4fe3b2fc999f49f32b5eeb823e31332f78",
   "pins" : [
     {
       "identity" : "swift-argument-parser",
@@ -24,8 +24,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/pointfreeco/swift-custom-dump",
       "state" : {
-        "revision" : "93a8aa4937030b606de42f44b17870249f49af0b",
-        "version" : "1.3.4"
+        "revision" : "2a2a938798236b8fa0bc57c453ee9de9f9ec3ab0",
+        "version" : "1.4.1"
       }
     },
     {
@@ -42,8 +42,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/pointfreeco/xctest-dynamic-overlay",
       "state" : {
-        "revision" : "34e463e98ab8541c604af706c99bed7160f5ec70",
-        "version" : "1.8.1"
+        "revision" : "dfd70507def84cb5fb821278448a262c6ff2bbad",
+        "version" : "1.9.0"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index 2a85f85..c8007f0 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:6.0
+// swift-tools-version: 6.1
 
 import PackageDescription
 
@@ -6,8 +6,10 @@ let package = Package(
 	name: "Period",
 	platforms: [
 		.iOS(.v15),
+		.macCatalyst(.v15),
 		.macOS(.v12),
 		.tvOS(.v15),
+		.visionOS(.v1),
 		.watchOS(.v8),
 	],
 	products: [
@@ -21,7 +23,7 @@ let package = Package(
 				"Period",
 				.product(name: "JSONTesting", package: "swift-json-testing"),
 			],
-			path: "Tests"
+			path: "Tests",
 		),
 
 		.executableTarget(
@@ -29,12 +31,20 @@ let package = Package(
 			dependencies: [
 				"Period",
 				.product(name: "Benchmark", package: "swift-benchmark"),
-			]
+			],
 		),
-	]
+	],
 )
 
-package.dependencies = [
+package.dependencies += [
 	.package(url: "https://github.com/google/swift-benchmark", from: "0.1.2"),
 	.package(url: "https://github.com/davdroman/swift-json-testing", from: "0.2.0"),
 ]
+
+for target in package.targets {
+	target.swiftSettings = target.swiftSettings ?? []
+	target.swiftSettings? += [
+		.enableUpcomingFeature("ExistentialAny"),
+		.enableUpcomingFeature("InternalImportsByDefault"),
+	]
+}
diff --git a/Sources/Period/Arithmetic.swift b/Sources/Period/Arithmetic.swift
index d549259..c3a7cc0 100644
--- a/Sources/Period/Arithmetic.swift
+++ b/Sources/Period/Arithmetic.swift
@@ -12,7 +12,7 @@ extension Period {
 			days: -rhs.days,
 			hours: -rhs.hours,
 			minutes: -rhs.minutes,
-			seconds: -rhs.seconds
+			seconds: -rhs.seconds,
 		)
 	}
 
@@ -25,7 +25,7 @@ extension Period {
 			days: lhs.days + rhs.days,
 			hours: lhs.hours + rhs.hours,
 			minutes: lhs.minutes + rhs.minutes,
-			seconds: lhs.seconds + rhs.seconds
+			seconds: lhs.seconds + rhs.seconds,
 		)
 	}
 
@@ -42,7 +42,7 @@ extension Period {
 			days: lhs.days - rhs.days,
 			hours: lhs.hours - rhs.hours,
 			minutes: lhs.minutes - rhs.minutes,
-			seconds: lhs.seconds - rhs.seconds
+			seconds: lhs.seconds - rhs.seconds,
 		)
 	}
 
@@ -59,7 +59,7 @@ extension Period {
 			days: lhs.days * rhs,
 			hours: lhs.hours * rhs,
 			minutes: lhs.minutes * rhs,
-			seconds: lhs.seconds * rhs
+			seconds: lhs.seconds * rhs,
 		)
 	}
 
diff --git a/Sources/Period/Calendar.swift b/Sources/Period/Calendar.swift
index c76f513..1e8337f 100644
--- a/Sources/Period/Calendar.swift
+++ b/Sources/Period/Calendar.swift
@@ -1,4 +1,4 @@
-import Foundation
+public import Foundation
 
 extension Calendar {
 	public func date(byAdding period: Period, to date: Date, wrappingComponents: Bool = false) -> Date? {
@@ -13,7 +13,7 @@ extension Calendar {
 			days: components.day ?? 0,
 			hours: components.hour ?? 0,
 			minutes: components.minute ?? 0,
-			seconds: components.second ?? 0
+			seconds: components.second ?? 0,
 		)
 	}
 }
@@ -26,7 +26,7 @@ extension DateComponents {
 			day: period.days,
 			hour: period.hours,
 			minute: period.minutes,
-			second: period.seconds
+			second: period.seconds,
 		)
 	}
 }
diff --git a/Sources/Period/Codable.swift b/Sources/Period/Codable.swift
index 2d50f9b..f39c26b 100644
--- a/Sources/Period/Codable.swift
+++ b/Sources/Period/Codable.swift
@@ -1,7 +1,7 @@
 import Foundation
 
 extension Period: Codable {
-	public init(from decoder: Decoder) throws {
+	public init(from decoder: any Decoder) throws {
 		let container = try decoder.singleValueContainer()
 		let rawValue = try container.decode(String.self)
 		do {
@@ -9,12 +9,12 @@ extension Period: Codable {
 		} catch {
 			throw DecodingError.dataCorruptedError(
 				in: container,
-				debugDescription: "Invalid ISO 8601 duration \"\(rawValue)\""
+				debugDescription: "Invalid ISO 8601 duration \"\(rawValue)\"",
 			)
 		}
 	}
 
-	public func encode(to encoder: Encoder) throws {
+	public func encode(to encoder: any Encoder) throws {
 		var container = encoder.singleValueContainer()
 		try container.encode(self.formatted(.iso8601))
 	}
diff --git a/Sources/Period/Formatting.swift b/Sources/Period/Formatting.swift
index 190cdff..027b4a5 100644
--- a/Sources/Period/Formatting.swift
+++ b/Sources/Period/Formatting.swift
@@ -1,5 +1,5 @@
 #if canImport(Darwin)
-import Foundation
+public import Foundation
 
 extension Period {
 	public struct FormatStyle: Foundation.FormatStyle, Sendable {
diff --git a/Sources/Period/ISO8601.swift b/Sources/Period/ISO8601.swift
index b9dec02..ef0b8ea 100644
--- a/Sources/Period/ISO8601.swift
+++ b/Sources/Period/ISO8601.swift
@@ -1,4 +1,4 @@
-import Foundation
+public import Foundation
 
 extension Period {
 	public struct ISO8601FormatStyle: ParseableFormatStyle, ParseStrategy {
@@ -41,7 +41,7 @@ extension Period {
 
 		enum Parser {
 			static let regex = try! NSRegularExpression(
-				pattern: #"([+-])?P(?:(-?\d+)?Y)?(?:(-?\d+)?M)?(?:(-?\d+)?W)?(?:(-?\d+)?D)?(?:T(?:(-?\d+)?H)?(?:(-?\d+)?M)?(?:(-?\d+)?S)?)?"#
+				pattern: #"([+-])?P(?:(-?\d+)?Y)?(?:(-?\d+)?M)?(?:(-?\d+)?W)?(?:(-?\d+)?D)?(?:T(?:(-?\d+)?H)?(?:(-?\d+)?M)?(?:(-?\d+)?S)?)?"#,
 			)
 
 			static func parse(_ string: String) -> Period? {
@@ -94,7 +94,7 @@ extension Period {
 					days: ((weeks ?? 0) * 7 + (days ?? 0)) * leadingSign,
 					hours: (hours ?? 0) * leadingSign,
 					minutes: (minutes ?? 0) * leadingSign,
-					seconds: (seconds ?? 0) * leadingSign
+					seconds: (seconds ?? 0) * leadingSign,
 				)
 			}
 		}
diff --git a/Sources/Period/Period.swift b/Sources/Period/Period.swift
index 3c769f2..857fe10 100644
--- a/Sources/Period/Period.swift
+++ b/Sources/Period/Period.swift
@@ -14,7 +14,7 @@ public struct Period: Hashable, Sendable {
 		days: Int = 0,
 		hours: Int = 0,
 		minutes: Int = 0,
-		seconds: Int = 0
+		seconds: Int = 0,
 	) {
 		self.years = years
 		self.months = months
diff --git a/Tests/DescriptionTests.swift b/Tests/DescriptionTests.swift
index fcfa0f8..d81a050 100644
--- a/Tests/DescriptionTests.swift
+++ b/Tests/DescriptionTests.swift
@@ -5,15 +5,15 @@ struct DescriptionTests {
 	@Test func periodDescription() {
 		#expect(
 			Period.zero.description
-				== ""
+				== "",
 		)
 		#expect(
 			Period(years: 1, months: 1, days: 1, hours: 1, minutes: 1, seconds: 1).description
-				== "1 year, 1 month, 1 day, 1 hour, 1 minute, 1 second"
+				== "1 year, 1 month, 1 day, 1 hour, 1 minute, 1 second",
 		)
 		#expect(
 			Period(years: 3, months: 3, days: 3, hours: 3, minutes: 3, seconds: 3).description
-				== "3 years, 3 months, 3 days, 3 hours, 3 minutes, 3 seconds"
+				== "3 years, 3 months, 3 days, 3 hours, 3 minutes, 3 seconds",
 		)
 	}
 }
diff --git a/Tests/FormattingTests.swift b/Tests/FormattingTests.swift
index cf1db6e..4d2fa6e 100644
--- a/Tests/FormattingTests.swift
+++ b/Tests/FormattingTests.swift
@@ -12,11 +12,11 @@ extension FormattingTests {
 	@Test func periodFormatting_defaultStyle() {
 		#expect(
 			Period.zero.formatted(.full.locale(enLocale))
-				== "0 seconds"
+				== "0 seconds",
 		)
 		#expect(
 			Period(years: 1, months: 2, days: 3, hours: 4, minutes: 5, seconds: 6).formatted(.full.locale(enLocale))
-				== "1 year, 2 months, 3 days, 4 hours, 5 minutes, 6 seconds"
+				== "1 year, 2 months, 3 days, 4 hours, 5 minutes, 6 seconds",
 		)
 	}
 }
@@ -25,11 +25,11 @@ extension FormattingTests {
 	@Test func periodFormatting_explicitStyle() {
 		#expect(
 			Period.zero.formatted(.short.locale(enLocale))
-				== "0 secs"
+				== "0 secs",
 		)
 		#expect(
 			Period(years: 1, months: 2, days: 3, hours: 4, minutes: 5, seconds: 6).formatted(.short.locale(enLocale))
-				== "1 yr, 2 mths, 3 days, 4 hrs, 5 min, 6 secs"
+				== "1 yr, 2 mths, 3 days, 4 hrs, 5 min, 6 secs",
 		)
 	}
 }
@@ -38,11 +38,11 @@ extension FormattingTests {
 	@Test func periodFormatting_customAllowedUnits() {
 		#expect(
 			Period.zero.formatted(.full.allowedUnits([.day, .hour, .minute, .second]).locale(enLocale))
-				== "0 seconds"
+				== "0 seconds",
 		)
 		#expect(
 			Period(years: 1, months: 2, days: 3, hours: 4, minutes: 5, seconds: 6).formatted(.full.allowedUnits([.day, .hour, .minute, .second]).locale(enLocale))
-				== "427 days, 4 hours, 5 minutes, 6 seconds"
+				== "427 days, 4 hours, 5 minutes, 6 seconds",
 		)
 	}
 }
@@ -51,11 +51,11 @@ extension FormattingTests {
 	@Test func periodFormatting_esLocale() {
 		#expect(
 			Period.zero.formatted(.full.locale(esLocale))
-				== "0 segundos"
+				== "0 segundos",
 		)
 		#expect(
 			Period(years: 1, months: 2, days: 3, hours: 4, minutes: 5, seconds: 6).formatted(.full.locale(esLocale))
-				== "1 año, 2 meses, 3 días, 4 horas, 5 minutos y 6 segundos"
+				== "1 año, 2 meses, 3 días, 4 horas, 5 minutos y 6 segundos",
 		)
 	}
 }