diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index edbd7245a..5737ae566 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,7 +9,7 @@ on:
 
 jobs:
   xcode14:
-    name: "Xcode 14"
+    name: "Xcode 15"
     runs-on: macos-latest
 
     strategy:
diff --git a/.jazzy.yml b/.jazzy.yml
index e6aea3e99..a2d928495 100644
--- a/.jazzy.yml
+++ b/.jazzy.yml
@@ -100,7 +100,6 @@ custom_categories:
   - RxCollectionViewDataSourcePrefetchingProxy
   - RxCollectionViewDataSourceProxy
   - RxCollectionViewDelegateProxy
-  - RxDelegateProxyCrashFix
   - RxNavigationControllerDelegateProxy
   - RxPickerViewDataSourceProxy
   - RxPickerViewDelegateProxy
diff --git a/Sources/AllTestz/main.swift b/Sources/AllTestz/main.swift
index ccbe4be16..4d6eee064 100644
--- a/Sources/AllTestz/main.swift
+++ b/Sources/AllTestz/main.swift
@@ -296,6 +296,18 @@ final class EventTests_ : EventTests, RxTestCase {
     ] }
 }
 
+final class Foo_ : Foo, RxTestCase {
+    #if os(macOS)
+    required override init() {
+        super.init()
+    }
+    #endif
+
+    static var allTests: [(String, (Foo_) -> () -> Void)] { return [
+    ("testObservableFactoryClosureLifetime", Foo.testObservableFactoryClosureLifetime),
+    ] }
+}
+
 final class HistoricalSchedulerTest_ : HistoricalSchedulerTest, RxTestCase {
     #if os(macOS)
     required override init() {
@@ -1657,6 +1669,7 @@ final class ObservableTest_ : ObservableTest, RxTestCase {
     ("testAsObservable_hides", ObservableTest.testAsObservable_hides),
     ("testAsObservable_never", ObservableTest.testAsObservable_never),
     ("testSubscribeWithNext", ObservableTest.testSubscribeWithNext),
+    ("testDeferredFactoryClosureLifetime", ObservableTest.testDeferredFactoryClosureLifetime),
     ] }
 }
 
@@ -2234,6 +2247,7 @@ func XCTMain(_ tests: [() -> Void]) {
         testCase(DisposeBagTest_.allTests),
         testCase(DriverTest_.allTests),
         testCase(EventTests_.allTests),
+        testCase(Foo_.allTests),
         testCase(HistoricalSchedulerTest_.allTests),
         testCase(InfallibleCombineLatestTest_.allTests),
         testCase(InfallibleTest_.allTests),
diff --git a/scripts/common.sh b/scripts/common.sh
index 6b9fd8f37..3f412b34f 100755
--- a/scripts/common.sh
+++ b/scripts/common.sh
@@ -21,28 +21,28 @@ BOLDWHITE="\033[1m\033[37m"
 
 # make sure all tests are passing
 if [[ `uname` == "Darwin" ]]; then
-	echo "🏔 Running iOS 16 / Xcode 14"
+	echo "🏔 Running iOS 17 / Xcode 15"
 
-	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.iOS-16- | wc -l` -ge 1 ]; then
-		DEFAULT_IOS_SIMULATOR=RxSwiftTest/iPhone-14/iOS/16.2
+	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.iOS-17- | wc -l` -ge 1 ]; then
+		DEFAULT_IOS_SIMULATOR=RxSwiftTest/iPhone-14/iOS/17.4
 	else
-		echo "No iOS 16.* Simulator found, available runtimes are:"
+		echo "No iOS 17.* Simulator found, available runtimes are:"
 		xcrun simctl list runtimes
 		exit -1
 	fi
 
-	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.watchOS-9- | wc -l` -ge 1 ]; then
-		DEFAULT_WATCHOS_SIMULATOR=RxSwiftTest/Apple-Watch-Series-8-45mm/watchOS/9.0
+	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.watchOS-10- | wc -l` -ge 1 ]; then
+		DEFAULT_WATCHOS_SIMULATOR=RxSwiftTest/Apple-Watch-Series-8-45mm/watchOS/10.0
 	else
-		echo "No watchOS 9.* Simulator found, available runtimes are:"
+		echo "No watchOS 10.* Simulator found, available runtimes are:"
 		xcrun simctl list runtimes
 		exit -1
 	fi
 
-	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.tvOS-16- | wc -l` -ge 1 ]; then
-		DEFAULT_TVOS_SIMULATOR=RxSwiftTest/Apple-TV-1080p/tvOS/16.0
+	if [ `xcrun simctl list runtimes | grep com.apple.CoreSimulator.SimRuntime.tvOS-17- | wc -l` -ge 1 ]; then
+		DEFAULT_TVOS_SIMULATOR=RxSwiftTest/Apple-TV-1080p/tvOS/17.0
 	else
-		echo "No tvOS 16.* Simulator found, available runtimes are:"
+		echo "No tvOS 17.* Simulator found, available runtimes are:"
 		xcrun simctl list runtimes
 		exit -1
 	fi