diff --git a/stdlib/toolchain/CompatibilitySpan/CMakeLists.txt b/stdlib/toolchain/CompatibilitySpan/CMakeLists.txt
index 6129b5258d7fc..29fb589239e22 100644
--- a/stdlib/toolchain/CompatibilitySpan/CMakeLists.txt
+++ b/stdlib/toolchain/CompatibilitySpan/CMakeLists.txt
@@ -21,12 +21,12 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND DEFINED SWIFT_STDLIB_LIBRARY_BUILD_TY
 
     NO_SWIFTMODULE
 
-    DEPLOYMENT_VERSION_OSX ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_OSX}
-    DEPLOYMENT_VERSION_IOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_IOS}
-    DEPLOYMENT_VERSION_TVOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_TVOS}
-    DEPLOYMENT_VERSION_WATCHOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_WATCHOS}
-    DEPLOYMENT_VERSION_XROS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_XROS}
-    DEPLOYMENT_VERSION_MACCATALYST ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_MACCATALYST}
+    DEPLOYMENT_VERSION_OSX "10.14.4"
+    DEPLOYMENT_VERSION_IOS "12.2"
+    DEPLOYMENT_VERSION_TVOS "12.2"
+    DEPLOYMENT_VERSION_WATCHOS "5.2"
+    DEPLOYMENT_VERSION_XROS "1.0"
+    DEPLOYMENT_VERSION_MACCATALYST "13.1"
 
     MACCATALYST_BUILD_FLAVOR "zippered"
 
diff --git a/test/Interop/C/swiftify-import/Inputs/counted-by-noescape.h b/test/Interop/C/swiftify-import/Inputs/counted-by-noescape.h
index 73a48ec5b220f..de26126bcc827 100644
--- a/test/Interop/C/swiftify-import/Inputs/counted-by-noescape.h
+++ b/test/Interop/C/swiftify-import/Inputs/counted-by-noescape.h
@@ -7,7 +7,7 @@
 void simple(int len, int * __counted_by(len) __noescape p);
 
 void swiftAttr(int len, int *p) __attribute__((
-    swift_attr("@_SwiftifyImport(.countedBy(pointer: .param(2), count: \"len\"), .nonescaping(pointer: .param(2)), spanAvailability: \"visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4\")")));
+    swift_attr("@_SwiftifyImport(.countedBy(pointer: .param(2), count: \"len\"), .nonescaping(pointer: .param(2)), spanAvailability: \"visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4\")")));
 
 void shared(int len, int * __counted_by(len) __noescape p1, int * __counted_by(len) __noescape p2);
 
diff --git a/test/Interop/C/swiftify-import/Inputs/sized-by-noescape.h b/test/Interop/C/swiftify-import/Inputs/sized-by-noescape.h
index 255aed3f24fde..8105ed9764367 100644
--- a/test/Interop/C/swiftify-import/Inputs/sized-by-noescape.h
+++ b/test/Interop/C/swiftify-import/Inputs/sized-by-noescape.h
@@ -10,7 +10,7 @@
 void simple(int len, const void * __sized_by(len) __noescape p);
 
 void swiftAttr(int len, const void *p) __attribute__((swift_attr(
-    "@_SwiftifyImport(.sizedBy(pointer: .param(2), size: \"len\"), .nonescaping(pointer: .param(2)), spanAvailability: \"visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4\")")));
+    "@_SwiftifyImport(.sizedBy(pointer: .param(2), size: \"len\"), .nonescaping(pointer: .param(2)), spanAvailability: \"visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4\")")));
 
 void shared(int len, const void * __sized_by(len) __noescape p1, const void * __sized_by(len) __noescape p2);
 
diff --git a/test/Interop/C/swiftify-import/counted-by-lifetimebound.swift b/test/Interop/C/swiftify-import/counted-by-lifetimebound.swift
index 75f34babfe50e..ccccdf102398c 100644
--- a/test/Interop/C/swiftify-import/counted-by-lifetimebound.swift
+++ b/test/Interop/C/swiftify-import/counted-by-lifetimebound.swift
@@ -12,96 +12,96 @@
 import CountedByLifetimeboundClang
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func complexExpr(_ len: Int32, _ offset: Int32, _ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func constant(_ p: inout MutableSpan<Int32>?) -> MutableSpan<Int32>?
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func noncountedLifetime(_ len: Int32, _ p: UnsafeMutablePointer<Int32>!) -> MutableSpan<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nonnull(_ len: Int32, _ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullUnspecified(_ len: Int32, _ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullable(_ len: Int32, _ p: inout MutableSpan<Int32>?) -> MutableSpan<Int32>?
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func shared(_ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func simple(_ len: Int32, _ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
 
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callComplexExpr(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = complexExpr(73, 37, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNonnull(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = nonnull(73, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullUnspecified(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = nullUnspecified(73, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullable(_ p: inout MutableSpan<CInt>?) {
   let _: MutableSpan<CInt> = nullable(73, &p)!
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callShared(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = shared(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callSimple(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = simple(73, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNoncountedLifetime(_ p: UnsafeMutablePointer<CInt>) {
   let _: MutableSpan<CInt> = unsafe noncountedLifetime(73, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callConstant(_ p: inout MutableSpan<CInt>?) {
   let _: MutableSpan<CInt>? = constant(&p)
diff --git a/test/Interop/C/swiftify-import/counted-by-noescape.swift b/test/Interop/C/swiftify-import/counted-by-noescape.swift
index 74f3df2d8a39f..3ae342f13433e 100644
--- a/test/Interop/C/swiftify-import/counted-by-noescape.swift
+++ b/test/Interop/C/swiftify-import/counted-by-noescape.swift
@@ -12,89 +12,89 @@
 import CountedByNoEscapeClang
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_anonymous_param1: copy _anonymous_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func anonymous(_ _anonymous_param1: inout MutableSpan<Int32>?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(func: copy func)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func clash(func: inout MutableSpan<Int32>?, clash where: Int32)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_clash2_param1: copy _clash2_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func clash2(func _clash2_param1: inout MutableSpan<Int32>?, clash2 _clash2_param2: Int32)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func complexExpr(_ len: Int32, _ offset: Int32, _ p: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_func_param1: copy _func_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func `func`(_ _func_param1: inout MutableSpan<Int32>?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow extension)
 // CHECK-NEXT: @_lifetime(func: copy func)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcRenamed(func: inout MutableSpan<Int32>?, extension: Int32, init: Int32, open: Int32, var: Int32, is: Int32, as: Int32, in: Int32, guard: Int32, where: Int32) -> UnsafeMutableRawPointer!
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow _funcRenamedAnon_param2)
 // CHECK-NEXT: @_lifetime(_funcRenamedAnon_param1: copy _funcRenamedAnon_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcRenamedAnon(func _funcRenamedAnon_param1: inout MutableSpan<Int32>?, extension _funcRenamedAnon_param2: Int32, init _funcRenamedAnon_param3: Int32, open _funcRenamedAnon_param4: Int32, var _funcRenamedAnon_param5: Int32, is _funcRenamedAnon_param6: Int32, as _funcRenamedAnon_param7: Int32, in _funcRenamedAnon_param8: Int32, guard _funcRenamedAnon_param9: Int32, where _funcRenamedAnon_param10: Int32) -> UnsafeMutableRawPointer!
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_in_param1: copy _in_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func `in`(func _in_param1: inout MutableSpan<Int32>?, in _in_param2: Int32)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(func: copy func)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func keyword(_ func: inout MutableSpan<Int32>?, _ extension: Int32, _ init: Int32, _ open: Int32, _ var: Int32, _ is: Int32, _ as: Int32, _ in: Int32, _ guard: Int32, _ where: Int32)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func keywordType(_ p: inout MutableSpan<actor?>, _ p2: actor) -> actor
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_lenName_param2: copy _lenName_param2)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func lenName(_ _lenName_param0: Int32, _ _lenName_param1: Int32, _ _lenName_param2: inout MutableSpan<Int32>?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nonnull(_ p: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullUnspecified(_ p: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullable(_ p: inout MutableSpan<Int32>?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(func: copy func)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func open(func: inout MutableSpan<Int32>?, open where: Int32)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_pointerName_param1: copy _pointerName_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func pointerName(_ _pointerName_param1: inout MutableSpan<Int32>?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func returnLifetimeBound(_ len1: Int32, _ p: inout MutableSpan<Int32>) -> MutableSpan<Int32>
@@ -103,64 +103,64 @@ import CountedByNoEscapeClang
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func returnPointer(_ len: Int32) -> UnsafeMutableBufferPointer<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p1: copy p1)
 // CHECK-NEXT: @_lifetime(p2: copy p2)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func shared(_ p1: inout MutableSpan<Int32>, _ p2: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func simple(_ p: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func swiftAttr(_ p: inout MutableSpan<Int32>)
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callComplexExpr(_ p: inout MutableSpan<CInt>) {
   complexExpr(CInt(p.count), 1, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callNonnull(_ p: inout MutableSpan<CInt>) {
   nonnull(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callNullUnspecified(_ p: inout MutableSpan<CInt>) {
   nullUnspecified(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callNullable(_ p: inout MutableSpan<CInt>?) {
   nullable(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callReturnLifetimeBound(_ p: inout MutableSpan<CInt>) {
   let _: MutableSpan<CInt> = returnLifetimeBound(2, &p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callReturnPointer() {
   let _: UnsafeMutableBufferPointer<CInt>? = returnPointer(4) // call wrapper
   let _: UnsafeMutablePointer<CInt>? = returnPointer(4) // call unsafe interop
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @_lifetime(p2: copy p2)
 @inlinable
@@ -168,77 +168,77 @@ public func callShared(_ p: inout MutableSpan<CInt>, _ p2: inout MutableSpan<CIn
   shared(&p, &p2)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callSimple(_ p: inout MutableSpan<CInt>) {
   simple(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callSwiftAttr(_ p: inout MutableSpan<CInt>) {
   swiftAttr(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callAnonymous(_ p: inout MutableSpan<CInt>?) {
   anonymous(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callKeyword(_ p: inout MutableSpan<CInt>?) {
   keyword(&p, 1, 2, 3, 4, 5, 6, 7, 8, 9)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callFunc(_ p: inout MutableSpan<CInt>?) {
   `func`(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callFuncRenameKeyword(_ p: inout MutableSpan<CInt>?) {
   let _ = funcRenamed(func: &p, extension: 1, init: 2, open: 3, var: 4, is: 5, as: 6, in: 7, guard: 8, where: 9)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callFuncRenameClash(_ p: inout MutableSpan<CInt>?) {
   clash(func: &p, clash: 1)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callFuncRenameClashKeyword(_ p: inout MutableSpan<CInt>?) {
   `open`(func: &p, open: 1)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callFuncRenameClashKeywordAnon(_ p: inout MutableSpan<CInt>?) {
   `in`(func: &p, in: 1)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callPointerName(_ p: inout MutableSpan<CInt>?) {
   pointerName(&p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @_lifetime(p: copy p)
 @inlinable
 public func callLenName(_ p: inout MutableSpan<CInt>?) {
diff --git a/test/Interop/C/swiftify-import/sized-by-lifetimebound.swift b/test/Interop/C/swiftify-import/sized-by-lifetimebound.swift
index f3b5ba2687980..27250d41af53b 100644
--- a/test/Interop/C/swiftify-import/sized-by-lifetimebound.swift
+++ b/test/Interop/C/swiftify-import/sized-by-lifetimebound.swift
@@ -12,106 +12,106 @@
 import SizedByLifetimeboundClang
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy _bytesized_param1)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func bytesized(_ _bytesized_param1: RawSpan) -> MutableRawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy _charsized_param0)
 // CHECK-NEXT: @_lifetime(_charsized_param0: copy _charsized_param0)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func charsized(_ _charsized_param0: inout MutableRawSpan) -> MutableRawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func complexExpr(_ len: Int32, _ offset: Int32, _ p: RawSpan) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nonnull(_ len: Int32, _ p: RawSpan) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nonsizedLifetime(_ len: Int32, _ p: UnsafeRawPointer!) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullUnspecified(_ len: Int32, _ p: RawSpan) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullable(_ len: Int32, _ p: RawSpan?) -> RawSpan?
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func opaque(_ len: Int32, _ p: RawSpan) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func shared(_ p: RawSpan) -> RawSpan
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func simple(_ len: Int32, _ p: RawSpan) -> RawSpan
 
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callComplexExpr(_ p: RawSpan) {
   let _: RawSpan = complexExpr(73, 37, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNonnull(_ p: RawSpan) {
   let _: RawSpan = nonnull(73, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullUnspecified(_ p: RawSpan) {
   let _: RawSpan = nullUnspecified(73, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullable(_ p: RawSpan?) {
   let _: RawSpan = nullable(73, p)!
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callShared(_ p: RawSpan) {
   let _: RawSpan = shared(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callSimple(_ p: RawSpan) {
   let _: RawSpan = simple(73, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNonsizedLifetime(_ p: UnsafeRawPointer) {
   let _: RawSpan = unsafe nonsizedLifetime(73, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callBytesized(_ p: RawSpan) {
   let _: MutableRawSpan = bytesized(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 @_lifetime(p: copy p)
 public func callCharsized(_ p: inout MutableRawSpan) {
diff --git a/test/Interop/C/swiftify-import/sized-by-noescape.swift b/test/Interop/C/swiftify-import/sized-by-noescape.swift
index 1984045d6b6af..802c51227c7aa 100644
--- a/test/Interop/C/swiftify-import/sized-by-noescape.swift
+++ b/test/Interop/C/swiftify-import/sized-by-noescape.swift
@@ -12,105 +12,105 @@ import SizedByNoEscapeClang
 
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func bytesized(_ _bytesized_param1: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(_charsized_param0: copy _charsized_param0)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func charsized(_  _charsized_param0: inout MutableRawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func complexExpr(_ len: Int{{.*}}, _ offset: Int{{.*}}, _ p: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nonnull(_ p: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullUnspecified(_  p: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func nullable(_  p: RawSpan?)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func opaque(_  p: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func returnPointer(_ len: Int{{.*}}) -> UnsafeRawBufferPointer
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func shared(_ p1: RawSpan, _ p2: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func simple(_  p: RawSpan)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func swiftAttr(_  p: RawSpan)
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callComplexExpr(_ p: RawSpan) {
   complexExpr(CInt(p.byteCount), 1, p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNonnull(_ p: RawSpan) {
   nonnull(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullUnspecified(_ p: RawSpan) {
   nullUnspecified(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callNullable(_ p: RawSpan?) {
   nullable(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callReturnPointer() {
   let _: UnsafeRawBufferPointer? = returnPointer(4) // call wrapper
   let _: UnsafeRawPointer? = returnPointer(4) // call unsafe interop
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callShared(_ p: RawSpan, _ p2: RawSpan) {
   shared(p, p2)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callSimple(_ p: RawSpan) {
   simple(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callSwiftAttr(_ p: RawSpan) {
   swiftAttr(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 public func callBytesized(_ p: RawSpan) {
   bytesized(p)
 }
 
-@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 @inlinable
 @_lifetime(p: copy p)
 public func callCharsized(_ p: inout MutableRawSpan) {
diff --git a/test/Interop/Cxx/stdlib/std-span-interface.swift b/test/Interop/Cxx/stdlib/std-span-interface.swift
index fcb78d297970c..d210dbb451708 100644
--- a/test/Interop/Cxx/stdlib/std-span-interface.swift
+++ b/test/Interop/Cxx/stdlib/std-span-interface.swift
@@ -28,7 +28,7 @@ import CxxStdlib
 // CHECK:      struct X {
 // CHECK-NEXT:   init()
 // CHECK-NEXT:   /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT:   @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT:   @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT:   @_alwaysEmitIntoClient @_disfavoredOverload public mutating func methodWithSafeWrapper(_ s: Span<CInt>)
 // CHECK-NEXT:   mutating func methodWithSafeWrapper(_ s: ConstSpanOfInt)
 // CHECK-NEXT: }
@@ -41,45 +41,45 @@ import CxxStdlib
 // CHECK-NEXT: }
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(s: copy s)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func FuncWithMutableSafeWrapper(_ s: inout MutableSpan<CInt>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy s)
 // CHECK-NEXT: @_lifetime(s: copy s)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func FuncWithMutableSafeWrapper2(_ s: inout MutableSpan<CInt>) -> MutableSpan<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(&v)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func FuncWithMutableSafeWrapper3(_ v: inout VecOfInt) -> MutableSpan<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper1(_ p: inout MutableSpan<Int32>) -> MutableSpan<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(&v)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper2(_ v: inout VecOfInt, _ len: Int32) -> MutableSpan<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(s: copy s)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper3(_ s: inout MutableSpan<CInt>, _ p: UnsafeMutableBufferPointer<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(s: copy s)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper4(_ s: inout MutableSpan<CInt>, _ p: inout MutableSpan<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(p: copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper5(_ s: SpanOfInt, _ p: inout MutableSpan<Int32>)
 
@@ -90,43 +90,43 @@ import CxxStdlib
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func MixedFuncWithMutableSafeWrapper7(_ p: UnsafeMutableBufferPointer<Int32>) -> SpanOfInt
 
 // CHECK:      /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func `func`(_ copy: Span<CInt>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcWithSafeWrapper(_ s: Span<CInt>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy s)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcWithSafeWrapper2(_ s: Span<CInt>) -> Span<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow v)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func funcWithSafeWrapper3(_ v: borrowing VecOfInt) -> Span<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy p)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper1(_ p: Span<Int32>) -> Span<CInt>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(borrow v)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper2(_ v: borrowing VecOfInt, _ len: Int32) -> Span<Int32>
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper3(_ s: Span<CInt>, _ p: UnsafeMutableBufferPointer<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper4(_ s: Span<CInt>, _ p: Span<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper5(_ s: ConstSpanOfInt, _ p: Span<Int32>)
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
@@ -136,7 +136,7 @@ import CxxStdlib
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mixedFuncWithSafeWrapper7(_ p: UnsafeBufferPointer<Int32>) -> ConstSpanOfInt
 
 // CHECK-NEXT: /// This is an auto-generated wrapper for safer interop
-// CHECK-NEXT: @available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK-NEXT: @available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: @_lifetime(copy: copy copy)
 // CHECK-NEXT: @_alwaysEmitIntoClient @_disfavoredOverload public func mutableKeyword(_ copy: inout MutableSpan<CInt>)
 
diff --git a/test/SourceKit/CursorInfo/cursor_doc_comment_from_clang_safe_wrapper.swift b/test/SourceKit/CursorInfo/cursor_doc_comment_from_clang_safe_wrapper.swift
index 77917f65dda7f..078d8a16583f1 100644
--- a/test/SourceKit/CursorInfo/cursor_doc_comment_from_clang_safe_wrapper.swift
+++ b/test/SourceKit/CursorInfo/cursor_doc_comment_from_clang_safe_wrapper.swift
@@ -28,7 +28,7 @@ func test(_ s: Span<CInt>) {
 // CHECK: This comment contains `markup`.
 // CHECK: - And a list
 // CHECK-LABEL: DOC COMMENT XML
-// CHECK: <Function file="@__swiftmacro_So9testCDecl15_SwiftifyImportfMp_.swift" line="6" column="134"><Name>testCDecl(_:)</Name><USR>s:SC9testCDeclyys4SpanVys5Int32VGF</USR><Declaration>@available(visionOS 1.1, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
+// CHECK: <Function file="@__swiftmacro_So9testCDecl15_SwiftifyImportfMp_.swift" line="6" column="134"><Name>testCDecl(_:)</Name><USR>s:SC9testCDeclyys4SpanVys5Int32VGF</USR><Declaration>@available(visionOS 1.0, tvOS 12.2, watchOS 5.2, iOS 12.2, macOS 10.14.4, *)
 // CHECK-NEXT: public func testCDecl(_ p: Span&lt;Int32&gt;)</Declaration><CommentParts><Abstract><Para>This comment contains <codeVoice>markup</codeVoice>. *</Para></Abstract><Discussion><List-Bullet><Item><List-Bullet><Item><Para>And a list</Para></Item></List-Bullet></Item></List-Bullet><Para>This is an auto-generated wrapper for safer interop</Para></Discussion></CommentParts></Function>
 
 // CHECK-LABEL: SYMBOL GRAPH BEGIN
diff --git a/test/abi/macOS/arm64/stdlib.swift b/test/abi/macOS/arm64/stdlib.swift
index 8dd2b4750a3c8..e4e0bbe4fc0db 100644
--- a/test/abi/macOS/arm64/stdlib.swift
+++ b/test/abi/macOS/arm64/stdlib.swift
@@ -1039,24 +1039,24 @@ Added: _$ss18EnumeratedSequenceVyxGSKsSkRzrlMc
 Added: __swift_stdlib_CreateIndirectTaggedPointerString
 
 // Span backward deployment
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVsRi_zrlE6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVsRi_zrlE8_pointerSvSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanV6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanV8_pointerSvSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVN$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVsRi_zrlE6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVsRi_zrlE8_pointerSVSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanV6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanV8_pointerSVSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVN$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVsRi_zrlE6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVsRi_zrlE8_pointerSvSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanV6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanV8_pointerSvSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVN$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVsRi_zrlE6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVsRi_zrlE8_pointerSVSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanV6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanV8_pointerSVSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVN$
 
 // Duration.nanoseconds(_:)
 Added: _$ss8DurationV11nanosecondsyABSdFZ
diff --git a/test/abi/macOS/x86_64/stdlib.swift b/test/abi/macOS/x86_64/stdlib.swift
index fa39ff436a468..0b0d6e7b6a5e2 100644
--- a/test/abi/macOS/x86_64/stdlib.swift
+++ b/test/abi/macOS/x86_64/stdlib.swift
@@ -1039,24 +1039,24 @@ Added: _$ss18EnumeratedSequenceVyxGSKsSkRzrlMc
 Added: __swift_stdlib_CreateIndirectTaggedPointerString
 
 // Span backward deployment
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVsRi_zrlE6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss11MutableSpanVsRi_zrlE8_pointerSvSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanV6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanV8_pointerSvSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss14MutableRawSpanVN$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVsRi_zrlE6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss4SpanVsRi_zrlE8_pointerSVSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanV6_countSivg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanV8_pointerSVSgvg$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVMa$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVMn$
-Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$15.0$_$ss7RawSpanVN$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVsRi_zrlE6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss11MutableSpanVsRi_zrlE8_pointerSvSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanV6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanV8_pointerSvSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss14MutableRawSpanVN$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVsRi_zrlE6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss4SpanVsRi_zrlE8_pointerSVSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanV6_countSivg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanV8_pointerSVSgvg$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVMa$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVMn$
+Added: $ld$previous$@rpath/libswiftCompatibilitySpan.dylib$$1$10.14$26.0$_$ss7RawSpanVN$
 
 // Duration.nanoseconds(_:)
 Added: _$ss8DurationV11nanosecondsyABSdFZ
diff --git a/utils/availability-macros.def b/utils/availability-macros.def
index f816acd10afec..7953c41a458fb 100644
--- a/utils/availability-macros.def
+++ b/utils/availability-macros.def
@@ -39,12 +39,11 @@ SwiftStdlib 6.0:macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0
 SwiftStdlib 6.1:macOS 15.4, iOS 18.4, watchOS 11.4, tvOS 18.4, visionOS 2.4
 SwiftStdlib 6.2:macOS 9999, iOS 9999, watchOS 9999, tvOS 9999, visionOS 9999
 
-# Like SwiftStdlib 5.0, but also the oldest visionOS from SwiftStdlib 5.10.
-SwiftCompatibilitySpan 5.0:macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, visionOS 1.1
+# Like SwiftStdlib 5.0, but also the oldest visionOS.
+SwiftCompatibilitySpan 5.0:macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, visionOS 1.0
 
-# Note: This cannot be 9999, so use the last non-placeholder entry instead.
-# This will go away once 'SwiftStdlib 6.2' is filled in.
-SwiftCompatibilitySpan 6.2:macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0
+# Identical to SwiftStdlib 6.2.
+SwiftCompatibilitySpan 6.2:macOS 26.0, iOS 26.0, watchOS 26.0, tvOS 26.0, visionOS 26.0
 
 # TODO: When you add a new version, remember to tell the compiler about it
 # by also adding it to include/swift/AST/RuntimeVersions.def.