diff --git a/CHANGELOG.md b/CHANGELOG.md
index e32be3b51a..bc8de64214 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@
     * `PathedFile#fullUrl` now is not `inline` function
     * `SimpleRequest#json` now is not `inline` and `internal` function
     * `FlowsUpdatesFilter` now have two additional flows: `pollAnswerFlow`, `unknownUpdateTypeFlow`
+    * `ExtendedUser` (`typealias`) was added as a `PreviewFeature`
 
 ## 0.24.0
 
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt
index 2410f6fad0..05f82c362a 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt
@@ -1,6 +1,8 @@
 package com.github.insanusmokrassar.TelegramBotAPI.types
 
 import com.github.insanusmokrassar.TelegramBotAPI.types.chat.abstracts.PrivateChat
+import com.github.insanusmokrassar.TelegramBotAPI.types.chat.abstracts.extended.ExtendedPrivateChat
+import com.github.insanusmokrassar.TelegramBotAPI.utils.PreviewFeature
 import com.github.insanusmokrassar.TelegramBotAPI.utils.nonstrictJsonFormat
 import kotlinx.serialization.*
 import kotlinx.serialization.json.JsonObjectSerializer
@@ -21,6 +23,9 @@ data class CommonUser(
     val languageCode: String? = null
 ) : User()
 
+@PreviewFeature
+typealias ExtendedUser = ExtendedPrivateChat
+
 @Serializable(UserSerializer::class)
 sealed class Bot : User() {
     abstract override val username: Username
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Annotations.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Annotations.kt
index a2a11b80ba..8091ba9794 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Annotations.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Annotations.kt
@@ -1,7 +1,19 @@
 package com.github.insanusmokrassar.TelegramBotAPI.utils
 
 @RequiresOptIn(
-    "It is possible, that bevahiour of this thing will be changed later",
+    "It is possible, that behaviour of this thing will be changed later",
     RequiresOptIn.Level.WARNING
 )
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.CONSTRUCTOR,
+    AnnotationTarget.FIELD,
+    AnnotationTarget.PROPERTY,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.TYPE,
+    AnnotationTarget.TYPEALIAS,
+    AnnotationTarget.TYPE_PARAMETER
+)
 annotation class PreviewFeature