diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e3c688fcd..10033cfe9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # TelegramBotAPI changelog
 
+## 7.0.1
+
+* `Core`:
+    * New interface `WithChat` which contains `chat` field
+        * `Message` now inherits `WithChat`
+        * `ChatMemberUpdated` now inherits `WithChat`
+* `Utils`:
+    * Improvements in `same`-notations
+
 ## 7.0.0
 
 This update contains support of [Telegram Bot API 6.6](https://core.telegram.org/bots/api-changelog#march-9-2023)
diff --git a/gradle.properties b/gradle.properties
index 6932fd1002..7397299ac5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,4 +6,4 @@ kotlin.incremental=true
 kotlin.incremental.js=true
 
 library_group=dev.inmo
-library_version=7.0.0
+library_version=7.0.1
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/abstracts/WithChat.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/abstracts/WithChat.kt
new file mode 100644
index 0000000000..1cdba4b9f3
--- /dev/null
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/abstracts/WithChat.kt
@@ -0,0 +1,10 @@
+package dev.inmo.tgbotapi.abstracts
+
+import dev.inmo.tgbotapi.types.chat.Chat
+
+/**
+ * All inheritors of this interface have [chat] field and related to this [chat]
+ */
+interface WithChat {
+    val chat: Chat
+}
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/member/ChatMemberUpdated.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/member/ChatMemberUpdated.kt
index 59646cc3df..81f4ac184b 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/member/ChatMemberUpdated.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/member/ChatMemberUpdated.kt
@@ -1,5 +1,7 @@
 package dev.inmo.tgbotapi.types.chat.member
 
+import dev.inmo.tgbotapi.abstracts.WithChat
+import dev.inmo.tgbotapi.abstracts.WithUser
 import dev.inmo.tgbotapi.types.*
 import dev.inmo.tgbotapi.types.chat.Chat
 import dev.inmo.tgbotapi.types.chat.User
@@ -9,9 +11,9 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class ChatMemberUpdated(
     @SerialName(chatField)
-    val chat: Chat,
+    override val chat: Chat,
     @SerialName(fromField)
-    val user: User,
+    override val user: User,
     @SerialName(dateField)
     val date: TelegramDate,
     @SerialName(oldChatMemberField)
@@ -20,4 +22,4 @@ data class ChatMemberUpdated(
     val newChatMemberState: ChatMember,
     @SerialName(inviteLinkField)
     val inviteLink: ChatInviteLink? = null
-)
+) : WithChat, WithUser
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/Message.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/Message.kt
index e9593c2da4..49f9eda9b9 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/Message.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/Message.kt
@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.types.message.abstracts
 
 import com.soywiz.klock.DateTime
+import dev.inmo.tgbotapi.abstracts.WithChat
 import dev.inmo.tgbotapi.utils.internal.ClassCastsIncluded
 import dev.inmo.tgbotapi.types.MessageId
 import dev.inmo.tgbotapi.types.chat.Chat
@@ -11,9 +12,8 @@ import kotlinx.serialization.encoding.Decoder
 import kotlinx.serialization.encoding.Encoder
 
 @ClassCastsIncluded
-interface Message {
+interface Message : WithChat {
     val messageId: MessageId
-    val chat: Chat
     val date: DateTime
 }
 
diff --git a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/FlowsSame.kt b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/FlowsSame.kt
new file mode 100644
index 0000000000..a45ecd1cb5
--- /dev/null
+++ b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/FlowsSame.kt
@@ -0,0 +1,37 @@
+package dev.inmo.tgbotapi.extensions.utils.extensions
+
+import dev.inmo.tgbotapi.abstracts.FromUser
+import dev.inmo.tgbotapi.abstracts.WithChat
+import dev.inmo.tgbotapi.types.ChatIdentifier
+import dev.inmo.tgbotapi.types.UserId
+import dev.inmo.tgbotapi.types.chat.Chat
+import dev.inmo.tgbotapi.types.chat.User
+import dev.inmo.tgbotapi.types.message.abstracts.Message
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.transform
+
+/**
+ * Will pass only those [T] which have [sameChat] as [chatId]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T : WithChat> Flow<T>.fromChat(chatId: ChatIdentifier): Flow<T> = filter { it.sameChat(chatId) }
+
+/**
+ * Will pass only those [T] which have [sameChat] as [chatId]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T : WithChat> Flow<T>.fromChat(chat: Chat): Flow<T> = fromChat(chat.id)
+
+/**
+ * @return [Flow] with the [FromUser.user] field [User.id] the same as [userId]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T : FromUser> Flow<T>.fromUser(userId: UserId): Flow<T> = filter { it.user.id == userId }
+
+/**
+ * @return [Flow] with the [FromUser.user] field [User.id] the same as [user] [User.id]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T : FromUser> Flow<T>.fromUser(user: User): Flow<T> = fromUser(user.id)
+
diff --git a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/Same.kt b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/Same.kt
index 20ede5d212..8ef2b69166 100644
--- a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/Same.kt
+++ b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/Same.kt
@@ -1,20 +1,120 @@
 package dev.inmo.tgbotapi.extensions.utils.extensions
 
+import dev.inmo.tgbotapi.abstracts.WithChat
+import dev.inmo.tgbotapi.extensions.utils.usernameChatOrNull
+import dev.inmo.tgbotapi.extensions.utils.whenUsernameChat
+import dev.inmo.tgbotapi.types.ChatIdentifier
+import dev.inmo.tgbotapi.types.MessageId
+import dev.inmo.tgbotapi.types.MessageThreadId
+import dev.inmo.tgbotapi.types.Username
+import dev.inmo.tgbotapi.types.chat.Chat
 import dev.inmo.tgbotapi.types.message.abstracts.Message
+import dev.inmo.tgbotapi.types.threadId
 import dev.inmo.tgbotapi.utils.extensions.threadIdOrNull
 
+/**
+ * @return true in case if [this] message is placed in the chat with id == [chatId]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun WithChat.sameChat(chatId: ChatIdentifier) = chat.id == chatId || (chatId is Username && chat.whenUsernameChat {
+    it.username == chatId
+} ?: false)
+
+/**
+ * @return true in case if [this] message is placed in the [chat]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun WithChat.sameChat(chat: Chat) = sameChat(chat.id) || chat.usernameChatOrNull() ?.username ?.let { sameChat(it) } ?: false
+
 /**
  * @return true in case if [this] message is placed in the same chat that [other]
  */
 @Suppress("NOTHING_TO_INLINE")
-inline fun Message.sameChat(other: Message) = chat.id == other.chat.id
+inline fun WithChat.sameChat(other: Message) = sameChat(other.chat)
+
+/**
+ * @return true in case if [this] message is from the same chat (with id == [chatId]) and [this] [Message.messageId]
+ * equal [messageId] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameMessage(
+    chatId: ChatIdentifier,
+    messageId: MessageId
+) = sameChat(chatId) && this.messageId == messageId
+
+/**
+ * @return true in case if [this] message is from the same [chat] and [this] [Message.messageId] equal [messageId]
+ * identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameMessage(
+    chat: Chat,
+    messageId: MessageId
+) = sameChat(chat) && this.messageId == messageId
 
 /**
  * @return true in case if [this] message is the same as [other]. The same here means that these messages from one chat
  * and have equal [Message.messageId] identifier
  */
 @Suppress("NOTHING_TO_INLINE")
-inline fun Message.sameMessage(other: Message) = sameChat(other) && messageId == other.messageId
+inline fun Message.sameMessage(other: Message) = sameMessage(other.chat, other.messageId)
+
+/**
+ * Thread is the same thing that topic
+ *
+ * @return true in case if [this] message is in the chat [chatId] and topic [threadId]. The same here means that these
+ * messages from one chat and have equal [Message.threadIdOrNull] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameTopic(
+    chatId: ChatIdentifier,
+    threadId: MessageThreadId? = chatId.threadId
+) = sameChat(chatId) && threadIdOrNull == threadId
+
+/**
+ * Thread is the same thing that topic
+ *
+ * @return true in case if [this] message is in the chat [chatId] and topic [threadId]. The same here means that these
+ * messages from one chat and have equal [Message.threadIdOrNull] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameThread(
+    chatId: ChatIdentifier,
+    threadId: MessageThreadId? = chatId.threadId
+) = sameTopic(chatId, threadId)
+
+/**
+ * Thread is the same thing that topic
+ *
+ * @return true in case if [this] message is from the [chat] and topic [threadId]. The same here means that these
+ * messages from one chat and have equal [Message.threadIdOrNull] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameTopic(
+    chat: Chat,
+    threadId: MessageThreadId? = chat.id.threadId
+) = sameTopic(chat.id, threadId)
+
+/**
+ * Thread is the same thing that topic
+ *
+ * @return true in case if [this] message is from the [chat] and topic [threadId]. The same here means that these
+ * messages from one chat and have equal [Message.threadIdOrNull] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameThread(
+    chat: Chat,
+    threadId: MessageThreadId? = chat.id.threadId
+) = sameThread(chat.id, threadId)
+
+/**
+ * Thread is the same thing that topic
+ *
+ * @return true in case if [this] message is from the same chat and topic as [other]. The same here means that these
+ * messages from one chat and have equal [Message.threadIdOrNull] identifier
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun Message.sameTopic(other: Message) = sameTopic(other.chat, other.threadIdOrNull)
 
 /**
  * Thread is the same thing that topic
@@ -23,13 +123,4 @@ inline fun Message.sameMessage(other: Message) = sameChat(other) && messageId ==
  * from one chat and have equal [Message.threadIdOrNull] identifier
  */
 @Suppress("NOTHING_TO_INLINE")
-inline fun Message.sameTopic(other: Message) = sameChat(other) && threadIdOrNull == other.threadIdOrNull
-
-/**
- * Thread is the same thing that topic
- *
- * @return true in case if [this] message is in the same topic as the [other]. The same here means that these messages
- * from one chat and have equal [Message.threadIdOrNull] identifier
- */
-@Suppress("NOTHING_TO_INLINE")
-inline fun Message.sameThread(other: Message) = sameChat(other) && threadIdOrNull == other.threadIdOrNull
+inline fun Message.sameThread(other: Message) = sameTopic(other)