diff --git a/ForwardInfoSenderBot/src/main/kotlin/ForwardInfoSenderBot.kt b/ForwardInfoSenderBot/src/main/kotlin/ForwardInfoSenderBot.kt
index 843fa8e..5e97f6b 100644
--- a/ForwardInfoSenderBot/src/main/kotlin/ForwardInfoSenderBot.kt
+++ b/ForwardInfoSenderBot/src/main/kotlin/ForwardInfoSenderBot.kt
@@ -1,9 +1,8 @@
 import dev.inmo.tgbotapi.extensions.api.send.sendTextMessage
 import dev.inmo.tgbotapi.extensions.api.telegramBot
-import dev.inmo.tgbotapi.extensions.utils.flatMap
+import dev.inmo.tgbotapi.extensions.utils.*
 import dev.inmo.tgbotapi.extensions.utils.formatting.codeMarkdownV2
 import dev.inmo.tgbotapi.extensions.utils.formatting.regularMarkdownV2
-import dev.inmo.tgbotapi.extensions.utils.safely
 import dev.inmo.tgbotapi.extensions.utils.shortcuts.mediaGroupMessages
 import dev.inmo.tgbotapi.extensions.utils.updates.asContentMessagesFlow
 import dev.inmo.tgbotapi.extensions.utils.updates.retrieving.startGettingFlowsUpdatesByLongPolling
@@ -25,7 +24,7 @@ suspend fun main(vararg args: String) {
     val scope = CoroutineScope(Dispatchers.Default)
 
     bot.startGettingFlowsUpdatesByLongPolling(scope = scope) {
-        (merge(messageFlow.asContentMessagesFlow(), mediaGroupMessages(scope).flatMap())).mapNotNull { it as? PossiblyForwardedMessage }.onEach { message ->
+        (merge(messageFlow.asContentMessagesFlow(), mediaGroupMessages(scope).flatMap())).mapNotNull { it.asPossiblyForwardedMessage() }.onEach { message ->
             safely({ it.printStackTrace() }) {
                 val toAnswer = when (val forwardInfo = message.forwardInfo) {
                     null -> "There is no forward info"
diff --git a/HelloBot/src/main/kotlin/HelloBot.kt b/HelloBot/src/main/kotlin/HelloBot.kt
index fe04dba..2c34453 100644
--- a/HelloBot/src/main/kotlin/HelloBot.kt
+++ b/HelloBot/src/main/kotlin/HelloBot.kt
@@ -1,16 +1,15 @@
+import dev.inmo.micro_utils.coroutines.safely
 import dev.inmo.tgbotapi.extensions.api.chat.get.getChat
-import dev.inmo.tgbotapi.extensions.api.chat.get.getChatAdministrators
 import dev.inmo.tgbotapi.extensions.api.send.reply
 import dev.inmo.tgbotapi.extensions.api.send.sendTextMessage
-import dev.inmo.tgbotapi.extensions.api.telegramBot
+import dev.inmo.tgbotapi.bot.Ktor.telegramBot
+import dev.inmo.tgbotapi.extensions.utils.asChannelChat
 import dev.inmo.tgbotapi.extensions.utils.formatting.linkMarkdownV2
 import dev.inmo.tgbotapi.extensions.utils.formatting.textMentionMarkdownV2
-import dev.inmo.tgbotapi.extensions.utils.safely
 import dev.inmo.tgbotapi.extensions.utils.updates.retrieving.startGettingFlowsUpdatesByLongPolling
 import dev.inmo.tgbotapi.types.ParseMode.MarkdownV2
 import dev.inmo.tgbotapi.types.User
 import dev.inmo.tgbotapi.types.chat.abstracts.*
-import dev.inmo.tgbotapi.types.toChatId
 import dev.inmo.tgbotapi.utils.extensions.escapeMarkdownV2Common
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.launchIn
@@ -52,7 +51,7 @@ suspend fun main(vararg args: String) {
         channelPostFlow.onEach {
             safely {
                 val chat = it.data.chat
-                val message = "Hi everybody in this channel \"${(chat as ChannelChat).title}\""
+                val message = "Hi everybody in this channel \"${(chat.asChannelChat()) ?.title}\""
                 bot.sendTextMessage(chat, message, MarkdownV2)
             }
         }.launchIn(scope)
diff --git a/README.md b/README.md
index c9cbbf7..7256736 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,32 @@
 # TelegramBotAPI-examples
+
 This repository contains several examples of simple bots which are using TelegramBotAPI
+
+## How to use this repository
+
+This repository contains several important things:
+
+* Example subprojects
+* Commits
+* Structure
+
+### Example subproject
+
+Each example subproject contains information about how to run this example and what is it
+doing. Usually, it is some simple thing like sending "hello" message to the user which
+wrote to the bot.
+
+### Commits
+
+Commits can contains some things like migration onto new version (especially it is actual
+for major version changes), updates according to the new features in versions and
+different other things which usually more important in context of history or changes
+between library version
+
+### Structure
+
+Structure of this repository fully representative (it is the reason why this repo
+contains multiplatform subprojects) and you can use it as some template (but I am strongly
+recommend you to use my
+[TelegramBot template](https://github.com/InsanusMokrassar/TelegramBotAPI-bot_template) or
+[Multiplatform Project template](https://github.com/InsanusMokrassar/KotlinMultiplatformProjectTemplate))
diff --git a/gradle.properties b/gradle.properties
index 40e582c..5837477 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,4 +2,4 @@ kotlin.code.style=official
 org.gradle.parallel=true
 
 kotlin_version=1.4.21
-telegram_bot_api_version=0.30.10
+telegram_bot_api_version=0.30.12