diff --git a/README.md b/README.md
index e52051b5..422202b4 100644
--- a/README.md
+++ b/README.md
@@ -1681,6 +1681,9 @@ Operator methods are defined as extension methods to `Observable<T>` in the stat
 | **AnyAsync**(this `Observable<T>` source, `CancellationToken` cancellationToken = default) | `Task<Boolean>` | 
 | **AnyAsync**(this `Observable<T>` source, `Func<T, Boolean>` predicate, `CancellationToken` cancellationToken = default) | `Task<Boolean>` | 
 | **Append**(this `Observable<T>` source, `T` value) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `IEnumerable<T>` values) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `Func<T>` valueFactory) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `TState` state, `Func<TState, T>` valueFactory) | `Observable<T>` | 
 | **AsObservable**(this `Observable<T>` source) | `Observable<T>` | 
 | **AsSystemObservable**(this `Observable<T>` source) | `IObservable<T>` | 
 | **AsUnitObservable**(this `Observable<T>` source) | `Observable<Unit>` | 
@@ -1813,6 +1816,9 @@ Operator methods are defined as extension methods to `Observable<T>` in the stat
 | **OnErrorResumeAsFailure**(this `Observable<T>` source) | `Observable<T>` | 
 | **Pairwise**(this `Observable<T>` source) | `Observable<ValueTuple<T, T>>` | 
 | **Prepend**(this `Observable<T>` source, `T` value) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `IEnumerable<T>` values) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `Func<T>` valueFactory) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `TState` state, `Func<TState, T>` valueFactory) | `Observable<T>` | 
 | **Publish**(this `Observable<T>` source) | `ConnectableObservable<T>` | 
 | **Publish**(this `Observable<T>` source, `T` initialValue) | `ConnectableObservable<T>` | 
 | **RefCount**(this `ConnectableObservable<T>` source) | `Observable<T>` | 
@@ -1857,6 +1863,7 @@ Operator methods are defined as extension methods to `Observable<T>` in the stat
 | **SkipUntil**(this `Observable<T>` source, `Observable<TOther>` other) | `Observable<T>` | 
 | **SkipUntil**(this `Observable<T>` source, `CancellationToken` cancellationToken) | `Observable<T>` | 
 | **SkipUntil**(this `Observable<T>` source, `Task` task) | `Observable<T>` | 
+| **SkipUntil**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` asyncFunc, `Boolean` configureAwait = true) | `Observable<T>` | 
 | **SkipWhile**(this `Observable<T>` source, `Func<T, Boolean>` predicate) | `Observable<T>` | 
 | **SkipWhile**(this `Observable<T>` source, `Func<T, Int32, Boolean>` predicate) | `Observable<T>` | 
 | **SubscribeAwait**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` onNextAsync, `AwaitOperation` awaitOperation = AwaitOperation.Sequential, `Boolean` configureAwait = true, `Boolean` cancelOnCompleted = true, `Int32` maxConcurrent = -1) | `IDisposable` | 
@@ -1895,6 +1902,7 @@ Operator methods are defined as extension methods to `Observable<T>` in the stat
 | **TakeUntil**(this `Observable<T>` source, `Observable<TOther>` other) | `Observable<T>` | 
 | **TakeUntil**(this `Observable<T>` source, `CancellationToken` cancellationToken) | `Observable<T>` | 
 | **TakeUntil**(this `Observable<T>` source, `Task` task) | `Observable<T>` | 
+| **TakeUntil**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` asyncFunc, `Boolean` configureAwait = true) | `Observable<T>` | 
 | **TakeWhile**(this `Observable<T>` source, `Func<T, Boolean>` predicate) | `Observable<T>` | 
 | **TakeWhile**(this `Observable<T>` source, `Func<T, Int32, Boolean>` predicate) | `Observable<T>` | 
 | **ThrottleFirst**(this `Observable<T>` source, `TimeSpan` timeSpan) | `Observable<T>` | 
diff --git a/docs/reference_operator.md b/docs/reference_operator.md
index 16d6e001..81f3d6ed 100644
--- a/docs/reference_operator.md
+++ b/docs/reference_operator.md
@@ -10,6 +10,9 @@
 | **AnyAsync**(this `Observable<T>` source, `CancellationToken` cancellationToken = default) | `Task<Boolean>` | 
 | **AnyAsync**(this `Observable<T>` source, `Func<T, Boolean>` predicate, `CancellationToken` cancellationToken = default) | `Task<Boolean>` | 
 | **Append**(this `Observable<T>` source, `T` value) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `IEnumerable<T>` values) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `Func<T>` valueFactory) | `Observable<T>` | 
+| **Append**(this `Observable<T>` source, `TState` state, `Func<TState, T>` valueFactory) | `Observable<T>` | 
 | **AsObservable**(this `Observable<T>` source) | `Observable<T>` | 
 | **AsSystemObservable**(this `Observable<T>` source) | `IObservable<T>` | 
 | **AsUnitObservable**(this `Observable<T>` source) | `Observable<Unit>` | 
@@ -142,6 +145,9 @@
 | **OnErrorResumeAsFailure**(this `Observable<T>` source) | `Observable<T>` | 
 | **Pairwise**(this `Observable<T>` source) | `Observable<ValueTuple<T, T>>` | 
 | **Prepend**(this `Observable<T>` source, `T` value) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `IEnumerable<T>` values) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `Func<T>` valueFactory) | `Observable<T>` | 
+| **Prepend**(this `Observable<T>` source, `TState` state, `Func<TState, T>` valueFactory) | `Observable<T>` | 
 | **Publish**(this `Observable<T>` source) | `ConnectableObservable<T>` | 
 | **Publish**(this `Observable<T>` source, `T` initialValue) | `ConnectableObservable<T>` | 
 | **RefCount**(this `ConnectableObservable<T>` source) | `Observable<T>` | 
@@ -186,6 +192,7 @@
 | **SkipUntil**(this `Observable<T>` source, `Observable<TOther>` other) | `Observable<T>` | 
 | **SkipUntil**(this `Observable<T>` source, `CancellationToken` cancellationToken) | `Observable<T>` | 
 | **SkipUntil**(this `Observable<T>` source, `Task` task) | `Observable<T>` | 
+| **SkipUntil**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` asyncFunc, `Boolean` configureAwait = true) | `Observable<T>` | 
 | **SkipWhile**(this `Observable<T>` source, `Func<T, Boolean>` predicate) | `Observable<T>` | 
 | **SkipWhile**(this `Observable<T>` source, `Func<T, Int32, Boolean>` predicate) | `Observable<T>` | 
 | **SubscribeAwait**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` onNextAsync, `AwaitOperation` awaitOperation = AwaitOperation.Sequential, `Boolean` configureAwait = true, `Boolean` cancelOnCompleted = true, `Int32` maxConcurrent = -1) | `IDisposable` | 
@@ -224,6 +231,7 @@
 | **TakeUntil**(this `Observable<T>` source, `Observable<TOther>` other) | `Observable<T>` | 
 | **TakeUntil**(this `Observable<T>` source, `CancellationToken` cancellationToken) | `Observable<T>` | 
 | **TakeUntil**(this `Observable<T>` source, `Task` task) | `Observable<T>` | 
+| **TakeUntil**(this `Observable<T>` source, `Func<T, CancellationToken, ValueTask>` asyncFunc, `Boolean` configureAwait = true) | `Observable<T>` | 
 | **TakeWhile**(this `Observable<T>` source, `Func<T, Boolean>` predicate) | `Observable<T>` | 
 | **TakeWhile**(this `Observable<T>` source, `Func<T, Int32, Boolean>` predicate) | `Observable<T>` | 
 | **ThrottleFirst**(this `Observable<T>` source, `TimeSpan` timeSpan) | `Observable<T>` | 
diff --git a/src/R3.Godot/addons/R3.Godot/plugin.cfg b/src/R3.Godot/addons/R3.Godot/plugin.cfg
index 9062c325..acdcc71e 100644
--- a/src/R3.Godot/addons/R3.Godot/plugin.cfg
+++ b/src/R3.Godot/addons/R3.Godot/plugin.cfg
@@ -3,6 +3,6 @@
 name="R3.Godot"
 description="The new future of dotnet/reactive and UniRx."
 author="Cysharp"
-version="1.1.2"
+version="1.1.3"
 language="C-sharp"
 script="GodotR3Plugin.cs"
diff --git a/src/R3.Unity/Assets/R3.Unity/package.json b/src/R3.Unity/Assets/R3.Unity/package.json
index 87d122fe..b17777a8 100644
--- a/src/R3.Unity/Assets/R3.Unity/package.json
+++ b/src/R3.Unity/Assets/R3.Unity/package.json
@@ -2,7 +2,7 @@
     "name": "com.cysharp.r3",
     "displayName": "R3",
     "author": { "name": "Cysharp, Inc.", "url": "https://cysharp.co.jp/en/" },
-    "version": "1.1.2",
+    "version": "1.1.3",
     "unity": "2021.3",
     "description": "Reactive Extensions for Unity.",
     "keywords": [ "rx", "event", "Scripting" ],