diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf70590d56..40b8d33b34 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # TelegramBotAPI changelog
 
+## 3.2.0
+
+**Since this update, `RequestsExecutor#execute` may throw only `BotException`. In case you wish to handle some exceptions from `execute` you must catch `BotException` and handle its `cause`**
+
+* `Versions`:
+    * `Serialization`: `1.4.0-RC` -> `1.4.0`
+    * `MicroUtils`: `0.12.1` -> `0.12.4`
+* `Core`:
+  * `SetWebhook#allowedUpdates` now is `ALL_UPDATES_LIST` by default instead of `null`
+* `API`:
+  * Extension `TelegramBot#setWebhook` parameter `allowedUpdates` now is `ALL_UPDATES_LIST` by default instead of `null`
+* `Utils`:
+  * All related to long polling extensions parameters `allowedUpdates` now are `ALL_UPDATES_LIST` by default instead of `null`
+
 ## 3.1.1
 
 * `Common`:
diff --git a/gradle.properties b/gradle.properties
index c0a1d7b5fe..93d60a6dd5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,4 +6,4 @@ kotlin.incremental=true
 kotlin.incremental.js=true
 
 library_group=dev.inmo
-library_version=3.1.1
+library_version=3.2.0
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 0eb6cd212b..11c2a634b9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,7 +1,7 @@
 [versions]
 
 kotlin = "1.7.10"
-kotlin-serialization = "1.4.0-RC"
+kotlin-serialization = "1.4.0"
 kotlin-coroutines = "1.6.4"
 
 javax-activation = "1.1.1"
@@ -13,7 +13,7 @@ ktor = "2.1.0"
 ksp = "1.7.10-1.0.6"
 kotlin-poet = "1.12.0"
 
-microutils = "0.12.1"
+microutils = "0.12.4"
 
 github-release-plugin = "2.4.1"
 
diff --git a/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/webhook/SetWebhookInfo.kt b/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/webhook/SetWebhookInfo.kt
index a0e9dcb195..d2a986c5c2 100644
--- a/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/webhook/SetWebhookInfo.kt
+++ b/tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/webhook/SetWebhookInfo.kt
@@ -4,6 +4,7 @@ import dev.inmo.tgbotapi.bot.TelegramBot
 import dev.inmo.tgbotapi.requests.abstracts.FileId
 import dev.inmo.tgbotapi.requests.abstracts.MultipartFile
 import dev.inmo.tgbotapi.requests.webhook.SetWebhook
+import dev.inmo.tgbotapi.types.ALL_UPDATES_LIST
 
 /**
  * Use this method to send information about webhook (like [url])
@@ -12,7 +13,7 @@ suspend fun TelegramBot.setWebhookInfo(
     url: String,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) = execute(
@@ -29,7 +30,7 @@ suspend fun TelegramBot.setWebhookInfo(
     certificate: FileId,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) = execute(
@@ -46,7 +47,7 @@ suspend fun TelegramBot.setWebhookInfo(
     certificate: MultipartFile,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) = execute(
diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitCommandsMessages.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitCommandsMessages.kt
new file mode 100644
index 0000000000..df34cfab1f
--- /dev/null
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitCommandsMessages.kt
@@ -0,0 +1,119 @@
+package dev.inmo.tgbotapi.extensions.behaviour_builder.expectations
+
+import dev.inmo.tgbotapi.extensions.behaviour_builder.BehaviourContext
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.handlers_registrar.doWithRegistration
+import dev.inmo.tgbotapi.extensions.utils.*
+import dev.inmo.tgbotapi.requests.abstracts.Request
+import dev.inmo.tgbotapi.types.message.abstracts.CommonMessage
+import dev.inmo.tgbotapi.types.message.content.TextContent
+import dev.inmo.tgbotapi.types.message.textsources.BotCommandTextSource
+import dev.inmo.tgbotapi.types.message.textsources.TextSource
+import kotlinx.coroutines.flow.*
+
+/**
+ * Will filter all the messages and include required commands with [commandRegex].
+ *
+ * * In case you wish to get only the commands at the start of message, use [requireCommandAtStart]
+ * * In case you wish to exclude messages with more than one command, you may use [requireSingleCommand]
+ * * In case you wish to exclude messages with commands params, you may use [requireCommandsWithoutParams]
+ */
+suspend fun BehaviourContext.waitCommandMessage(
+    commandRegex: Regex,
+    initRequest: Request<*>? = null,
+    errorFactory: NullableRequestBuilder<*> = { null }
+) = channelFlow {
+    triggersHolder.handleableCommandsHolder.doWithRegistration(
+        commandRegex
+    ) {
+        waitTextMessage(initRequest, errorFactory).filter {
+            it.content.textSources.any { it.botCommandTextSourceOrNull() ?.command ?.matches(commandRegex) == true }
+        }.collect {
+            send(it)
+        }
+    }
+}
+
+suspend fun BehaviourContext.waitCommandMessage(
+    command: String,
+    initRequest: Request<*>? = null,
+    errorFactory: NullableRequestBuilder<*> = { null }
+) = waitCommandMessage(Regex(command), initRequest, errorFactory)
+
+fun Flow<CommonMessage<TextContent>>.requireCommandAtStart() = filter {
+    it.content.textSources.firstOrNull() is BotCommandTextSource
+}
+
+/**
+ * Subsequent [Flow] will retrieve only messages with ONE [BotCommandTextSource]. It does not guarantee that this
+ * [BotCommandTextSource] will be at the start of the message
+ *
+ * @see requireCommandAtStart
+ */
+fun Flow<CommonMessage<TextContent>>.requireSingleCommand() = filter {
+    var count = 0
+
+    it.content.textSources.forEach {
+        if (it is BotCommandTextSource) {
+            count++
+            if (count > 1) {
+                return@filter false
+            }
+        }
+    }
+
+    count == 1
+}
+
+/**
+ * Subsequent [Flow] will retrieve only messages without [TextContent.textSources] which are not [BotCommandTextSource]
+ */
+fun Flow<CommonMessage<TextContent>>.requireCommandsWithoutParams() = filter {
+    it.content.textSources.none { it !is BotCommandTextSource }
+}
+
+/**
+ * Map the commands with their arguments and source messages
+ */
+fun Flow<CommonMessage<TextContent>>.commandsWithParams(): Flow<Pair<CommonMessage<TextContent>, List<Pair<BotCommandTextSource, Array<TextSource>>>>> = mapNotNull {
+    var currentCommandTextSource: BotCommandTextSource? = null
+    val currentArgs = mutableListOf<TextSource>()
+    val result = mutableListOf<Pair<BotCommandTextSource, Array<TextSource>>>()
+
+    fun addCurrentCommandToResult() {
+        currentCommandTextSource ?.let {
+            result.add(it to currentArgs.toTypedArray())
+            currentArgs.clear()
+        }
+    }
+
+    it.content.textSources.forEach {
+        it.ifBotCommandTextSource {
+            addCurrentCommandToResult()
+            currentCommandTextSource = it
+            return@forEach
+        }
+        currentArgs.add(it)
+    }
+    addCurrentCommandToResult()
+
+    result.toList().takeIf { it.isNotEmpty() } ?.let { result ->
+        it to result
+    }
+}
+
+/**
+ * Flat [commandsWithParams]. Each [Pair] of [BotCommandTextSource] and its [Array] of arg text sources will
+ * be associated with its source message
+ */
+fun Flow<CommonMessage<TextContent>>.flattenCommandsWithParams() = commandsWithParams().flatMapConcat { (message, commandsWithParams) ->
+    commandsWithParams.map {
+        message to it
+    }.asFlow()
+}
+
+/**
+ * Use [flattenCommandsWithParams] and filter out the commands which do not [matches] to [commandRegex]
+ */
+fun Flow<CommonMessage<TextContent>>.commandParams(commandRegex: Regex) = flattenCommandsWithParams().filter { (_, commandWithParams) ->
+    commandWithParams.first.command.matches(commandRegex)
+}
diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitDeepLinks.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitDeepLinks.kt
new file mode 100644
index 0000000000..129d7e72c1
--- /dev/null
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitDeepLinks.kt
@@ -0,0 +1,23 @@
+package dev.inmo.tgbotapi.extensions.behaviour_builder.expectations
+
+import dev.inmo.tgbotapi.extensions.behaviour_builder.BehaviourContext
+import dev.inmo.tgbotapi.extensions.utils.regularTextSourceOrNull
+import dev.inmo.tgbotapi.requests.abstracts.Request
+import dev.inmo.tgbotapi.types.message.abstracts.CommonMessage
+import dev.inmo.tgbotapi.types.message.content.TextContent
+import dev.inmo.tgbotapi.types.message.textsources.RegularTextSource
+import kotlinx.coroutines.flow.*
+
+suspend fun BehaviourContext.waitDeepLinks(
+    initRequest: Request<*>? = null,
+    errorFactory: NullableRequestBuilder<*> = { null },
+): Flow<Pair<CommonMessage<TextContent>, String>> = waitCommandMessage(
+    "start",
+    initRequest,
+    errorFactory
+)
+    .requireSingleCommand()
+    .requireCommandAtStart()
+    .flattenCommandsWithParams().mapNotNull {
+        it.first to (it.second.second.singleOrNull() ?.regularTextSourceOrNull() ?.source ?.removePrefix(" ") ?: return@mapNotNull null)
+    }
diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/triggers_handling/DeepLinkHandling.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/triggers_handling/DeepLinkHandling.kt
new file mode 100644
index 0000000000..cf85ec58f9
--- /dev/null
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/triggers_handling/DeepLinkHandling.kt
@@ -0,0 +1,48 @@
+@file:Suppress("unused")
+
+package dev.inmo.tgbotapi.extensions.behaviour_builder.triggers_handling
+
+import dev.inmo.micro_utils.coroutines.*
+import dev.inmo.tgbotapi.extensions.behaviour_builder.*
+import dev.inmo.tgbotapi.extensions.behaviour_builder.expectations.waitDeepLinks
+import dev.inmo.tgbotapi.extensions.behaviour_builder.filters.CommonMessageFilterExcludeMediaGroups
+import dev.inmo.tgbotapi.extensions.behaviour_builder.filters.MessageFilterByChat
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.SimpleFilter
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.marker_factories.ByChatMessageMarkerFactory
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.marker_factories.MarkerFactory
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.times
+import dev.inmo.tgbotapi.extensions.utils.*
+import dev.inmo.tgbotapi.extensions.utils.extensions.parseCommandsWithParams
+import dev.inmo.tgbotapi.types.message.content.TextContent
+import dev.inmo.tgbotapi.types.message.content.TextMessage
+import dev.inmo.tgbotapi.types.message.textsources.RegularTextSource
+import dev.inmo.tgbotapi.types.update.abstracts.Update
+import io.ktor.http.decodeURLQueryComponent
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.filter
+
+private val startRegex = Regex("start")
+suspend fun <BC : BehaviourContext> BC.onDeepLink(
+    initialFilter: SimpleFilter<Pair<TextMessage, String>>? = null,
+    subcontextUpdatesFilter: CustomBehaviourContextAndTwoTypesReceiver<BC, Boolean, Pair<TextMessage, String>, Update> = { (message, _), update -> MessageFilterByChat(this, message, update) },
+    markerFactory: MarkerFactory<Pair<TextMessage, String>, Any> = MarkerFactory { (message, _) -> ByChatMessageMarkerFactory(message) },
+    scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, Pair<TextMessage, String>>
+): Job = on(
+    markerFactory,
+    SimpleFilter<Pair<TextMessage, String>> { (message, _) ->
+        message.content.textSources.size == 2
+            && message.content.textSources.firstOrNull() ?.asBotCommandTextSource() ?.command == "start"
+            && message.content.textSources.getOrNull(1) is RegularTextSource
+    } * initialFilter,
+    subcontextUpdatesFilter,
+    scenarioReceiver,
+) {
+    (it.messageUpdateOrNull()) ?.data ?.commonMessageOrNull() ?.withContentOrNull<TextContent>() ?.let { message ->
+        message to message.content.textSources[1].source.removePrefix(" ").decodeURLQueryComponent()
+    } ?.let(::listOfNotNull)
+}.also {
+    triggersHolder.handleableCommandsHolder.registerHandleable(startRegex)
+    it.invokeOnCompletion {
+        this@onDeepLink.launchSafelyWithoutExceptions { triggersHolder.handleableCommandsHolder.unregisterHandleable(startRegex) }
+    }
+}
diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/SimpleFilter.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/SimpleFilter.kt
index fb918ffb93..e4dac61c93 100644
--- a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/SimpleFilter.kt
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/SimpleFilter.kt
@@ -4,6 +4,7 @@ fun interface SimpleFilter<in T> {
     suspend operator fun invoke(o: T): Boolean
 }
 val TrueSimpleFilter = SimpleFilter<Any?> { true }
+val FalseSimpleFilter = SimpleFilter<Any?> { false }
 
 /**
  * @return [SimpleFilter] which will return true in case when all the items in incoming data passed [this] filter
@@ -28,21 +29,29 @@ fun <T> SimpleFilter<T>.listNone() = SimpleFilter<Iterable<T>> {
 
 /**
  * Makes an AND (&&) operation between [this] and [other]
+ *
+ * * When both arguments are null, [TrueSimpleFilter] will be returned
  */
-operator fun <T> SimpleFilter<T>?.times(other: SimpleFilter<T>): SimpleFilter<T> = this ?.let {
-    SimpleFilter {
-        this(it) && other(it)
-    }
-} ?: other
+infix operator fun <T> SimpleFilter<T>?.times(other: SimpleFilter<T>?): SimpleFilter<T> = this ?.let {
+    other ?.let {
+        SimpleFilter {
+            this(it) && other(it)
+        }
+    } ?: it
+} ?: other ?: TrueSimpleFilter
 
 /**
  * Makes an OR (||) operation between [this] and [other]
+ *
+ * * When both arguments are null, [TrueSimpleFilter] will be returned
  */
-operator fun <T> SimpleFilter<T>?.plus(other: SimpleFilter<T>): SimpleFilter<T> = this ?.let {
-    SimpleFilter {
-        this(it) || other(it)
-    }
-} ?: other
+infix operator fun <T> SimpleFilter<T>?.plus(other: SimpleFilter<T>?): SimpleFilter<T> = this ?.let {
+    other ?.let {
+        SimpleFilter {
+            this(it) || other(it)
+        }
+    } ?: it
+} ?: other ?: TrueSimpleFilter
 
 /**
  * Reverse results of [this]
diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/handlers_registrar/HandleableTriggersHolder.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/handlers_registrar/HandleableTriggersHolder.kt
index a182a7eced..784dd25654 100644
--- a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/handlers_registrar/HandleableTriggersHolder.kt
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/utils/handlers_registrar/HandleableTriggersHolder.kt
@@ -1,5 +1,6 @@
 package dev.inmo.tgbotapi.extensions.behaviour_builder.utils.handlers_registrar
 
+import dev.inmo.micro_utils.coroutines.runCatchingSafely
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 
@@ -7,6 +8,7 @@ open class HandleableTriggersHolder<T>(
     preset: List<T> = emptyList()
 ) {
     protected val commandsMutex = Mutex()
+    protected val handleableCounts = mutableMapOf<T, Int>()
     protected val _handleable = mutableListOf<T>().also {
         it.addAll(preset)
     }
@@ -16,12 +18,31 @@ open class HandleableTriggersHolder<T>(
     suspend fun registerHandleable(data: T) {
         commandsMutex.withLock {
             _handleable.add(data)
+            handleableCounts[data] = (handleableCounts[data] ?: 0) + 1
         }
     }
 
     suspend fun unregisterHandleable(data: T) {
         commandsMutex.withLock {
-            _handleable.remove(data)
+            val newHandleableCount = (handleableCounts[data] ?: 0) - 1
+            if (newHandleableCount > 0) {
+                handleableCounts[data] = newHandleableCount
+            } else {
+                handleableCounts.remove(data)
+                _handleable.remove(data)
+            }
         }
     }
 }
+
+suspend fun <T, R> HandleableTriggersHolder<T>.doWithRegistration(
+    data: T,
+    block: suspend () -> R
+): R {
+    registerHandleable(data)
+    val result = runCatchingSafely {
+        block()
+    }
+    unregisterHandleable(data)
+    return result.getOrThrow()
+}
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/exceptions/RequestException.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/exceptions/RequestException.kt
index 3ed3242660..7448d2e901 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/exceptions/RequestException.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/exceptions/RequestException.kt
@@ -35,13 +35,18 @@ fun newRequestException(
     }
 } ?: CommonRequestException(response, plainAnswer, message, cause)
 
+sealed class BotException(message: String = "Something went wrong", cause: Throwable? = null) : IOException(message, cause)
+
+class CommonBotException(message: String = "Something went wrong", cause: Throwable? = null) : BotException(message, cause)
+
 sealed class RequestException constructor(
     val response: Response,
     val plainAnswer: String,
     message: String? = null,
-    override val cause: Throwable? = null
-) : IOException(
-    message ?: "Something went wrong"
+    cause: Throwable? = null
+) : BotException(
+    message ?: "Something went wrong",
+    cause
 )
 
 class CommonRequestException(response: Response, plainAnswer: String, message: String?, cause: Throwable?) :
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/KtorRequestsExecutor.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/KtorRequestsExecutor.kt
index 45ed64fc02..03ab290421 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/KtorRequestsExecutor.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/KtorRequestsExecutor.kt
@@ -1,9 +1,10 @@
 package dev.inmo.tgbotapi.bot.ktor
 
+import dev.inmo.micro_utils.coroutines.runCatchingSafely
 import dev.inmo.micro_utils.coroutines.safely
 import dev.inmo.tgbotapi.bot.BaseRequestsExecutor
 import dev.inmo.tgbotapi.bot.TelegramBot
-import dev.inmo.tgbotapi.bot.exceptions.newRequestException
+import dev.inmo.tgbotapi.bot.exceptions.*
 import dev.inmo.tgbotapi.bot.ktor.base.*
 import dev.inmo.tgbotapi.bot.settings.limiters.ExceptionsOnlyLimiter
 import dev.inmo.tgbotapi.bot.settings.limiters.RequestLimiter
@@ -48,12 +49,36 @@ class KtorRequestsExecutor(
     }
 
     override suspend fun <T : Any> execute(request: Request<T>): T {
-        return runCatching {
-            safely(
-                { e ->
-                    pipelineStepsHolder.onRequestException(request, e) ?.let { return@safely it }
+        return runCatchingSafely {
+            pipelineStepsHolder.onBeforeSearchCallFactory(request, callsFactories)
+            requestsLimiter.limit {
+                var result: T? = null
+                lateinit var factoryHandledRequest: KtorCallFactory
+                for (potentialFactory in callsFactories) {
+                    pipelineStepsHolder.onBeforeCallFactoryMakeCall(request, potentialFactory)
+                    result = potentialFactory.makeCall(
+                        client,
+                        telegramAPIUrlsKeeper,
+                        request,
+                        jsonFormatter
+                    )
+                    result = pipelineStepsHolder.onAfterCallFactoryMakeCall(result, request, potentialFactory)
+                    if (result != null) {
+                        factoryHandledRequest = potentialFactory
+                        break
+                    }
+                }
 
-                    throw if (e is ClientRequestException) {
+                result ?.let {
+                    pipelineStepsHolder.onRequestResultPresented(it, request, factoryHandledRequest, callsFactories)
+                } ?: pipelineStepsHolder.onRequestResultAbsent(request, callsFactories) ?: error("Can't execute request: $request")
+            }
+        }.let {
+            val result = it.exceptionOrNull() ?.let { e ->
+                pipelineStepsHolder.onRequestException(request, e) ?.let { return@let it }
+
+                if (e is ClientRequestException) {
+                    val exceptionResult = runCatchingSafely {
                         val content = e.response.bodyAsText()
                         val responseObject = jsonFormatter.decodeFromString(Response.serializer(), content)
                         newRequestException(
@@ -61,38 +86,15 @@ class KtorRequestsExecutor(
                             content,
                             "Can't get result object from $content"
                         )
-                    } else {
-                        e
                     }
-
+                    exceptionResult.exceptionOrNull() ?.let {
+                        CommonBotException(cause = e)
+                    } ?: exceptionResult.getOrThrow()
+                } else {
+                    CommonBotException(cause = e)
                 }
-            ) {
-                pipelineStepsHolder.onBeforeSearchCallFactory(request, callsFactories)
-                requestsLimiter.limit {
-                    var result: T? = null
-                    lateinit var factoryHandledRequest: KtorCallFactory
-                    for (potentialFactory in callsFactories) {
-                        pipelineStepsHolder.onBeforeCallFactoryMakeCall(request, potentialFactory)
-                        result = potentialFactory.makeCall(
-                            client,
-                            telegramAPIUrlsKeeper,
-                            request,
-                            jsonFormatter
-                        )
-                        result = pipelineStepsHolder.onAfterCallFactoryMakeCall(result, request, potentialFactory)
-                        if (result != null) {
-                            factoryHandledRequest = potentialFactory
-                            break
-                        }
-                    }
-
-                    result ?.let {
-                        pipelineStepsHolder.onRequestResultPresented(it, request, factoryHandledRequest, callsFactories)
-                    } ?: pipelineStepsHolder.onRequestResultAbsent(request, callsFactories) ?: error("Can't execute request: $request")
-                }
-            }
-        }.let {
-            pipelineStepsHolder.onRequestReturnResult(it, request, callsFactories)
+            } ?.let { Result.failure(it) } ?: it
+            pipelineStepsHolder.onRequestReturnResult(result, request, callsFactories)
         }
     }
 
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/webhook/SetWebhook.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/webhook/SetWebhook.kt
index 39482247c5..774e7ae80f 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/webhook/SetWebhook.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/webhook/SetWebhook.kt
@@ -19,7 +19,7 @@ class MultipartSetWebhookRequest(
     certificate: MultipartFile,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) : SetWebhookRequest(), MultipartRequest<Boolean> by MultipartRequestImpl(
@@ -40,7 +40,7 @@ fun SetWebhook(
     certificate: MultipartFile,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ): MultipartSetWebhookRequest = MultipartSetWebhookRequest(
@@ -58,7 +58,7 @@ fun SetWebhook(
     certificate: FileId,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ): SetWebhook = SetWebhook(
@@ -84,7 +84,7 @@ fun SetWebhook(
     certificate: InputFile,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) = when (certificate) {
@@ -104,7 +104,7 @@ fun SetWebhook(
     url: String,
     ipAddress: String? = null,
     maxAllowedConnections: Int? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     dropPendingUpdates: Boolean? = null,
     secretToken: String? = null
 ) = SetWebhook(
@@ -135,7 +135,7 @@ data class SetWebhook internal constructor(
     @SerialName(maxAllowedConnectionsField)
     val maxAllowedConnections: Int? = null,
     @SerialName(allowedUpdatesField)
-    val allowedUpdates: List<String>? = null,
+    val allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     @SerialName(dropPendingUpdatesField)
     val dropPendingUpdates: Boolean? = null,
     @SerialName(secretTokenField)
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
index 0e1cf5f246..4d4c2583a1 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
@@ -81,6 +81,8 @@ sealed interface StickerType {
     }
 }
 
+val usernameRegex = Regex("@[\\w\\d_]+")
+
 val degreesLimit = 1 .. 360
 val horizontalAccuracyLimit = 0F .. 1500F
 
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/textsources/BotCommandTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/textsources/BotCommandTextSource.kt
index b58bd11f4f..bb143c5fe0 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/textsources/BotCommandTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/textsources/BotCommandTextSource.kt
@@ -1,5 +1,7 @@
 package dev.inmo.tgbotapi.types.message.textsources
 
+import dev.inmo.tgbotapi.types.usernameRegex
+import dev.inmo.tgbotapi.types.Username
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
 import kotlinx.serialization.Serializable
@@ -16,6 +18,9 @@ data class BotCommandTextSource @RiskFeature(DirectInvocationOfTextSourceConstru
     val command: String by lazy {
         commandRegex.find(source) ?.value ?.substring(1) ?: source.substring(1)// skip first symbol like "/" or "!"
     }
+    val username: Username? by lazy {
+        Username(usernameRegex.find(source) ?.value ?: return@lazy null)
+    }
 
     override val markdown: String by lazy { source.commandMarkdown() }
     override val markdownV2: String by lazy { source.commandMarkdownV2() }
diff --git a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/FlowsAggregation.kt b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/FlowsAggregation.kt
index 82cd9cb9b2..3da9f65694 100644
--- a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/FlowsAggregation.kt
+++ b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/FlowsAggregation.kt
@@ -30,7 +30,7 @@ fun <T> Flow<Iterable<T>>.flatten(): Flow<T> = flow {
     }
 }
 
-fun <T, R> Flow<T>.flatMap(mapper: (T) -> Iterable<R>): Flow<R> = flow {
+fun <T, R> Flow<T>.flatMap(mapper: suspend (T) -> Iterable<R>): Flow<R> = flow {
     collect {
         mapper(it).forEach {
             emit(it)
diff --git a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/formatting/LinksFormatting.kt b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/formatting/LinksFormatting.kt
index 21ec91f1fc..3e16e1f192 100644
--- a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/formatting/LinksFormatting.kt
+++ b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/formatting/LinksFormatting.kt
@@ -4,6 +4,7 @@ import dev.inmo.tgbotapi.types.*
 import dev.inmo.tgbotapi.types.chat.*
 import dev.inmo.tgbotapi.types.message.abstracts.Message
 import dev.inmo.tgbotapi.types.message.textsources.link
+import io.ktor.http.encodeURLQueryComponent
 
 
 fun makeUsernameLink(username: String) = "$internalLinkBeginning/$username"
@@ -17,11 +18,11 @@ inline val Username.deepLinkPrefix
 inline val Username.startattachPrefix
     get() = makeUsernameStartattachPrefix(usernameWithoutAt)
 inline fun makeLink(username: Username) = username.link
-inline fun makeTelegramDeepLink(username: String, startParameter: String) = "${makeUsernameDeepLinkPrefix(username)}$startParameter"
+inline fun makeTelegramDeepLink(username: String, startParameter: String) = "${makeUsernameDeepLinkPrefix(username)}$startParameter".encodeURLQueryComponent()
 inline fun makeTelegramStartattach(username: String, data: String? = null) = makeUsernameStartattachLink(username, data)
-inline fun makeDeepLink(username: Username, startParameter: String) = "${username.deepLinkPrefix}$startParameter"
+inline fun makeDeepLink(username: Username, startParameter: String) = makeTelegramDeepLink(username.usernameWithoutAt, startParameter)
 inline fun makeTelegramDeepLink(username: Username, startParameter: String) = makeDeepLink(username, startParameter)
-inline fun makeTelegramStartattach(username: Username, data: String? = null) = makeTelegramStartattach(username.username, data)
+inline fun makeTelegramStartattach(username: Username, data: String? = null) = makeTelegramStartattach(username.usernameWithoutAt, data)
 
 fun makeLinkToMessage(
     username: String,
diff --git a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/updates/retrieving/LongPolling.kt b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/updates/retrieving/LongPolling.kt
index 421427e2ac..830f37f0c3 100644
--- a/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/updates/retrieving/LongPolling.kt
+++ b/tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/updates/retrieving/LongPolling.kt
@@ -21,7 +21,7 @@ import kotlinx.coroutines.flow.*
 fun TelegramBot.longPollingFlow(
     timeoutSeconds: Seconds = 30,
     exceptionsHandler: (ExceptionHandler<Unit>)? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
 ): Flow<Update> = channelFlow {
     var lastUpdateIdentifier: UpdateIdentifier? = null
 
@@ -81,7 +81,7 @@ fun TelegramBot.startGettingOfUpdatesByLongPolling(
     timeoutSeconds: Seconds = 30,
     scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
     exceptionsHandler: (ExceptionHandler<Unit>)? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     updatesReceiver: UpdateReceiver<Update>
 ): Job = longPollingFlow(timeoutSeconds, exceptionsHandler, allowedUpdates).subscribeSafely(
     scope,
@@ -97,7 +97,7 @@ fun TelegramBot.createAccumulatedUpdatesRetrieverFlow(
     avoidInlineQueries: Boolean = false,
     avoidCallbackQueries: Boolean = false,
     exceptionsHandler: ExceptionHandler<Unit>? = null,
-    allowedUpdates: List<String>? = null
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST
 ): Flow<Update> = longPollingFlow(
     timeoutSeconds = 0,
     exceptionsHandler = {
@@ -117,7 +117,7 @@ fun TelegramBot.retrieveAccumulatedUpdates(
     avoidCallbackQueries: Boolean = false,
     scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
     exceptionsHandler: (ExceptionHandler<Unit>)? = null,
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     updatesReceiver: UpdateReceiver<Update>
 ): Job = createAccumulatedUpdatesRetrieverFlow(
     avoidInlineQueries,
@@ -149,7 +149,7 @@ suspend fun TelegramBot.flushAccumulatedUpdates(
     avoidInlineQueries: Boolean = false,
     avoidCallbackQueries: Boolean = false,
     scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
-    allowedUpdates: List<String>? = null,
+    allowedUpdates: List<String>? = ALL_UPDATES_LIST,
     exceptionsHandler: ExceptionHandler<Unit>? = null,
     updatesReceiver: UpdateReceiver<Update> = {}
 ) = retrieveAccumulatedUpdates(