diff --git a/codeSnippets/gradle.properties b/codeSnippets/gradle.properties
index acadb013b..3ba4a395a 100644
--- a/codeSnippets/gradle.properties
+++ b/codeSnippets/gradle.properties
@@ -8,9 +8,9 @@ kotlin.mpp.applyDefaultHierarchyTemplate=false
 org.gradle.java.installations.auto-download=false
 # versions
 kotlin_version = 2.3.21
-ktor_version = 3.5.0
-kotlinx_coroutines_version = 1.10.2
-kotlinx_serialization_version = 1.9.0
+ktor_version = 3.5.1
+kotlinx_coroutines_version = 1.11.0
+kotlinx_serialization_version = 1.11.0
 kotlin_css_version = 1.0.0-pre.721
 exposed_version = 1.3.0
 h2_version = 2.4.240
diff --git a/codeSnippets/snippets/aws-elastic-beanstalk/build.gradle.kts b/codeSnippets/snippets/aws-elastic-beanstalk/build.gradle.kts
index 3cc6b54f3..1e9def13f 100644
--- a/codeSnippets/snippets/aws-elastic-beanstalk/build.gradle.kts
+++ b/codeSnippets/snippets/aws-elastic-beanstalk/build.gradle.kts
@@ -3,7 +3,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/client-custom-plugin-data-transformation/src/main/kotlin/com/example/plugins/DataTransformation.kt b/codeSnippets/snippets/client-custom-plugin-data-transformation/src/main/kotlin/com/example/plugins/DataTransformation.kt
index 115f36479..c04b9646e 100644
--- a/codeSnippets/snippets/client-custom-plugin-data-transformation/src/main/kotlin/com/example/plugins/DataTransformation.kt
+++ b/codeSnippets/snippets/client-custom-plugin-data-transformation/src/main/kotlin/com/example/plugins/DataTransformation.kt
@@ -17,7 +17,7 @@ val DataTransformationPlugin = createClientPlugin("DataTransformationPlugin") {
     }
     transformResponseBody { response, content, requestedType ->
         if (requestedType.type == User::class) {
-            val receivedContent = content.readUTF8Line()!!.split(";")
+            val receivedContent = content.readLine()!!.split(";")
             User(receivedContent[0], receivedContent[1].toInt())
         } else {
             content
diff --git a/codeSnippets/snippets/client-http-send/build.gradle.kts b/codeSnippets/snippets/client-http-send/build.gradle.kts
index acc5230ea..110dc52e7 100644
--- a/codeSnippets/snippets/client-http-send/build.gradle.kts
+++ b/codeSnippets/snippets/client-http-send/build.gradle.kts
@@ -19,7 +19,7 @@ repositories {
 
 dependencies {
     implementation("io.ktor:ktor-client-core:$ktor_version")
-    implementation("io.ktor:ktor-client-apache:$ktor_version")
+    implementation("io.ktor:ktor-client-apache5:$ktor_version")
     implementation("ch.qos.logback:logback-classic:$logback_version")
     testImplementation("junit:junit:$junit_version")
     testImplementation("org.hamcrest:hamcrest:$hamcrest_version")
diff --git a/codeSnippets/snippets/client-http-send/src/main/kotlin/com/example/Application.kt b/codeSnippets/snippets/client-http-send/src/main/kotlin/com/example/Application.kt
index 6a5a90cf2..196961a10 100644
--- a/codeSnippets/snippets/client-http-send/src/main/kotlin/com/example/Application.kt
+++ b/codeSnippets/snippets/client-http-send/src/main/kotlin/com/example/Application.kt
@@ -1,7 +1,7 @@
 package com.example
 
 import io.ktor.client.*
-import io.ktor.client.engine.apache.*
+import io.ktor.client.engine.apache5.*
 import io.ktor.client.plugins.*
 import io.ktor.client.request.*
 import io.ktor.client.statement.*
@@ -9,7 +9,7 @@ import kotlinx.coroutines.*
 
 fun main() {
     runBlocking {
-        val client = HttpClient(Apache)
+        val client = HttpClient(Apache5)
         client.plugin(HttpSend).intercept { request ->
             val originalCall = execute(request)
             if (originalCall.response.status.value !in 100..399) {
diff --git a/codeSnippets/snippets/client-json/build.gradle.kts b/codeSnippets/snippets/client-json/build.gradle.kts
index 1bcbc5070..0ade93976 100644
--- a/codeSnippets/snippets/client-json/build.gradle.kts
+++ b/codeSnippets/snippets/client-json/build.gradle.kts
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
     implementation("io.ktor:ktor-client-core:$ktor_version")
-    implementation("io.ktor:ktor-client-apache:$ktor_version")
+    implementation("io.ktor:ktor-client-apache5:$ktor_version")
     implementation("io.ktor:ktor-client-content-negotiation:$ktor_version")
     implementation("io.ktor:ktor-serialization-gson:$ktor_version")
     implementation("ch.qos.logback:logback-classic:$logback_version")
diff --git a/codeSnippets/snippets/client-json/src/main/kotlin/com/example/JsonClient.kt b/codeSnippets/snippets/client-json/src/main/kotlin/com/example/JsonClient.kt
index c731cfd1a..763340090 100644
--- a/codeSnippets/snippets/client-json/src/main/kotlin/com/example/JsonClient.kt
+++ b/codeSnippets/snippets/client-json/src/main/kotlin/com/example/JsonClient.kt
@@ -2,7 +2,7 @@ package com.example
 
 import io.ktor.client.*
 import io.ktor.client.call.*
-import io.ktor.client.engine.apache.*
+import io.ktor.client.engine.apache5.*
 import io.ktor.client.plugins.contentnegotiation.*
 import io.ktor.client.request.*
 import io.ktor.serialization.gson.*
@@ -12,7 +12,7 @@ data class Model(val name: String, val items: List<Item>)
 data class Item(val key: String, val value: String)
 
 fun main(args: Array<String>) = runBlocking<Unit> {
-    val client = HttpClient(Apache) {
+    val client = HttpClient(Apache5) {
         install(ContentNegotiation) {
             gson()
         }
diff --git a/codeSnippets/snippets/custom-plugin-base-api/src/main/kotlin/com/example/plugins/DataTransformation.kt b/codeSnippets/snippets/custom-plugin-base-api/src/main/kotlin/com/example/plugins/DataTransformation.kt
index f03cb4435..032d823ca 100644
--- a/codeSnippets/snippets/custom-plugin-base-api/src/main/kotlin/com/example/plugins/DataTransformation.kt
+++ b/codeSnippets/snippets/custom-plugin-base-api/src/main/kotlin/com/example/plugins/DataTransformation.kt
@@ -13,7 +13,7 @@ class DataTransformation {
         override fun install(pipeline: ApplicationCallPipeline, configure: Configuration.() -> Unit): DataTransformation {
             val plugin = DataTransformation()
             pipeline.receivePipeline.intercept(ApplicationReceivePipeline.Transform) { data ->
-                val newValue = (data as ByteReadChannel).readUTF8Line()?.toInt()?.plus(1)
+                val newValue = (data as ByteReadChannel).readLine()?.toInt()?.plus(1)
                 if (newValue != null) {
                     proceedWith(newValue)
                 }
diff --git a/codeSnippets/snippets/custom-plugin/src/main/kotlin/com/example/plugins/DataTransformationPlugin.kt b/codeSnippets/snippets/custom-plugin/src/main/kotlin/com/example/plugins/DataTransformationPlugin.kt
index aae5257c1..2ee74e311 100644
--- a/codeSnippets/snippets/custom-plugin/src/main/kotlin/com/example/plugins/DataTransformationPlugin.kt
+++ b/codeSnippets/snippets/custom-plugin/src/main/kotlin/com/example/plugins/DataTransformationPlugin.kt
@@ -7,7 +7,7 @@ val DataTransformationPlugin = createApplicationPlugin(name = "DataTransformatio
     onCallReceive { call ->
         transformBody { data ->
             if (requestedType?.type == Int::class) {
-                val line = data.readUTF8Line() ?: "1"
+                val line = data.readLine() ?: "1"
                 line.toInt() + 1
             } else {
                 data
diff --git a/codeSnippets/snippets/deployment-ktor-plugin/build.gradle.kts b/codeSnippets/snippets/deployment-ktor-plugin/build.gradle.kts
index 13882b34e..fa3c5dbdf 100644
--- a/codeSnippets/snippets/deployment-ktor-plugin/build.gradle.kts
+++ b/codeSnippets/snippets/deployment-ktor-plugin/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/engine-main-custom-environment/build.gradle.kts b/codeSnippets/snippets/engine-main-custom-environment/build.gradle.kts
index 893051cb9..daa9ce332 100644
--- a/codeSnippets/snippets/engine-main-custom-environment/build.gradle.kts
+++ b/codeSnippets/snippets/engine-main-custom-environment/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/forwarded-header/build.gradle.kts b/codeSnippets/snippets/forwarded-header/build.gradle.kts
index a8c53d90f..423ac7689 100644
--- a/codeSnippets/snippets/forwarded-header/build.gradle.kts
+++ b/codeSnippets/snippets/forwarded-header/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/full-stack-task-manager/gradle/libs.versions.toml b/codeSnippets/snippets/full-stack-task-manager/gradle/libs.versions.toml
index 35cfdc05f..ee6ca8424 100644
--- a/codeSnippets/snippets/full-stack-task-manager/gradle/libs.versions.toml
+++ b/codeSnippets/snippets/full-stack-task-manager/gradle/libs.versions.toml
@@ -14,7 +14,7 @@ junit = "4.13.2"
 kotlin = "2.4.0"
 kotlin-wrappers = "2026.5.3"
 kotlinx-coroutines = "1.11.0"
-ktor = "3.5.0"
+ktor = "3.5.1"
 logback = "1.5.32"
 material3 = "1.11.0-alpha07"
 kotlinx-serialization-json = "1.11.0"
diff --git a/codeSnippets/snippets/htmx-integration/build.gradle.kts b/codeSnippets/snippets/htmx-integration/build.gradle.kts
index 4ec94e8bc..3586800f7 100644
--- a/codeSnippets/snippets/htmx-integration/build.gradle.kts
+++ b/codeSnippets/snippets/htmx-integration/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 group = "com.example"
diff --git a/codeSnippets/snippets/legacy-interactive-website/build.gradle.kts b/codeSnippets/snippets/legacy-interactive-website/build.gradle.kts
index c5b13d94c..d391acde8 100644
--- a/codeSnippets/snippets/legacy-interactive-website/build.gradle.kts
+++ b/codeSnippets/snippets/legacy-interactive-website/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/gradle.properties b/codeSnippets/snippets/migrating-express-ktor/gradle.properties
index 0e8bfcb59..269fda051 100644
--- a/codeSnippets/snippets/migrating-express-ktor/gradle.properties
+++ b/codeSnippets/snippets/migrating-express-ktor/gradle.properties
@@ -1,4 +1,4 @@
-ktor_version=3.5.0
-kotlin_version=2.2.20
+ktor_version=3.5.1
+kotlin_version=2.3.21
 logback_version=1.5.33
 kotlin.code.style=official
diff --git a/codeSnippets/snippets/openapi-spec-gen-maven/gradle/libs.versions.toml b/codeSnippets/snippets/openapi-spec-gen-maven/gradle/libs.versions.toml
index 174fcc784..224a9f8bb 100644
--- a/codeSnippets/snippets/openapi-spec-gen-maven/gradle/libs.versions.toml
+++ b/codeSnippets/snippets/openapi-spec-gen-maven/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin = "2.3.21"
-ktor = "3.5.0"
+ktor = "3.5.1"
 logback = "1.5.33"
 
 [libraries]
diff --git a/codeSnippets/snippets/openapi-spec-gen-maven/pom.xml b/codeSnippets/snippets/openapi-spec-gen-maven/pom.xml
index 29b9650bc..2ba433552 100644
--- a/codeSnippets/snippets/openapi-spec-gen-maven/pom.xml
+++ b/codeSnippets/snippets/openapi-spec-gen-maven/pom.xml
@@ -10,7 +10,7 @@
     <properties>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin_version>2.3.21</kotlin_version>
-        <ktor_version>3.5.0</ktor_version>
+        <ktor_version>3.5.1</ktor_version>
         <logback_version>1.5.33</logback_version>
         <slf4j_version>2.0.9</slf4j_version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/codeSnippets/snippets/openapi-spec-gen/build.gradle.kts b/codeSnippets/snippets/openapi-spec-gen/build.gradle.kts
index cca01a694..9696d77ad 100644
--- a/codeSnippets/snippets/openapi-spec-gen/build.gradle.kts
+++ b/codeSnippets/snippets/openapi-spec-gen/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/opentelemetry/gradle/libs.versions.toml b/codeSnippets/snippets/opentelemetry/gradle/libs.versions.toml
index e8aa78acc..ffe478f53 100644
--- a/codeSnippets/snippets/opentelemetry/gradle/libs.versions.toml
+++ b/codeSnippets/snippets/opentelemetry/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin = "2.3.21"
-ktor = "3.5.0"
+ktor = "3.5.1"
 logback = "1.5.33"
 opentelemetry = "2.18.1-alpha"
 opentelemetry_semconv = "1.34.0"
diff --git a/codeSnippets/snippets/proguard/build.gradle.kts b/codeSnippets/snippets/proguard/build.gradle.kts
index 90c1e72f8..011001a44 100644
--- a/codeSnippets/snippets/proguard/build.gradle.kts
+++ b/codeSnippets/snippets/proguard/build.gradle.kts
@@ -17,7 +17,7 @@ buildscript {
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts b/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
index 96494065d..0ce908305 100644
--- a/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
+++ b/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
     kotlin("plugin.serialization").version("2.2.20")
 }
 
diff --git a/codeSnippets/snippets/session-cookie-client/src/main/kotlin/cookieclient/Application.kt b/codeSnippets/snippets/session-cookie-client/src/main/kotlin/cookieclient/Application.kt
index 8349b3863..84fa3d069 100644
--- a/codeSnippets/snippets/session-cookie-client/src/main/kotlin/cookieclient/Application.kt
+++ b/codeSnippets/snippets/session-cookie-client/src/main/kotlin/cookieclient/Application.kt
@@ -12,8 +12,8 @@ data class UserSession(val id: String, val count: Int)
 
 fun Application.main() {
     install(Sessions) {
-        val secretEncryptKey = hex("00112233445566778899aabbccddeeff")
-        val secretSignKey = hex("6819b57a326945c1968f45236589")
+        val secretEncryptKey = "00112233445566778899aabbccddeeff".hexToByteArray()
+        val secretSignKey = "6819b57a326945c1968f45236589".hexToByteArray()
         cookie<UserSession>("user_session") {
             cookie.path = "/"
             cookie.maxAgeInSeconds = 10
diff --git a/codeSnippets/snippets/session-cookie-server/src/main/kotlin/com/example/Application.kt b/codeSnippets/snippets/session-cookie-server/src/main/kotlin/com/example/Application.kt
index e8fe0415a..b4ad5a367 100644
--- a/codeSnippets/snippets/session-cookie-server/src/main/kotlin/com/example/Application.kt
+++ b/codeSnippets/snippets/session-cookie-server/src/main/kotlin/com/example/Application.kt
@@ -12,7 +12,7 @@ data class CartSession(val userID: String, val productIDs: MutableList<Int>)
 
 fun Application.main() {
     install(Sessions) {
-        val secretSignKey = hex("6819b57a326945c1968f45236589")
+        val secretSignKey = "6819b57a326945c1968f45236589".hexToByteArray()
         cookie<CartSession>("cart_session", SessionStorageMemory()) {
             cookie.path = "/"
             transform(SessionTransportTransformerMessageAuthentication(secretSignKey))
diff --git a/codeSnippets/snippets/session-header-server/src/main/kotlin/com/example/Application.kt b/codeSnippets/snippets/session-header-server/src/main/kotlin/com/example/Application.kt
index 0d8df4de3..e3318694d 100644
--- a/codeSnippets/snippets/session-header-server/src/main/kotlin/com/example/Application.kt
+++ b/codeSnippets/snippets/session-header-server/src/main/kotlin/com/example/Application.kt
@@ -13,7 +13,7 @@ data class CartSession(val userID: String, val productIDs: MutableList<Int>)
 
 fun Application.main() {
     install(Sessions) {
-        val secretSignKey = hex("6819b57a326945c1968f45236589")
+        val secretSignKey = "6819b57a326945c1968f45236589".hexToByteArray()
         header<CartSession>("cart_session", directorySessionStorage(File("build/.sessions"))) {
             transform(SessionTransportTransformerMessageAuthentication(secretSignKey))
         }
diff --git a/codeSnippets/snippets/sockets-client/src/main/kotlin/com/example/Application.kt b/codeSnippets/snippets/sockets-client/src/main/kotlin/com/example/Application.kt
index b2e4459bf..8db72b9f8 100644
--- a/codeSnippets/snippets/sockets-client/src/main/kotlin/com/example/Application.kt
+++ b/codeSnippets/snippets/sockets-client/src/main/kotlin/com/example/Application.kt
@@ -16,7 +16,7 @@ fun main(args: Array<String>) {
 
         launch(Dispatchers.IO) {
             while (true) {
-                val greeting = receiveChannel.readUTF8Line()
+                val greeting = receiveChannel.readLine()
                 if (greeting != null) {
                     println(greeting)
                 } else {
diff --git a/codeSnippets/snippets/sockets-server/src/main/kotlin/com/example/Application.kt b/codeSnippets/snippets/sockets-server/src/main/kotlin/com/example/Application.kt
index bb0fb8476..920140470 100644
--- a/codeSnippets/snippets/sockets-server/src/main/kotlin/com/example/Application.kt
+++ b/codeSnippets/snippets/sockets-server/src/main/kotlin/com/example/Application.kt
@@ -19,7 +19,7 @@ fun main(args: Array<String>) {
                 sendChannel.writeStringUtf8("Please enter your name\n")
                 try {
                     while (true) {
-                        val name = receiveChannel.readUTF8Line()
+                        val name = receiveChannel.readLine()
                         sendChannel.writeStringUtf8("Hello, $name!\n")
                     }
                 } catch (e: Throwable) {
diff --git a/codeSnippets/snippets/tutorial-client-kmp/gradle/libs.versions.toml b/codeSnippets/snippets/tutorial-client-kmp/gradle/libs.versions.toml
index 176fc2fb4..366b5b535 100644
--- a/codeSnippets/snippets/tutorial-client-kmp/gradle/libs.versions.toml
+++ b/codeSnippets/snippets/tutorial-client-kmp/gradle/libs.versions.toml
@@ -12,8 +12,8 @@ androidx-testExt = "1.3.0"
 composeMultiplatform = "1.9.0"
 junit = "4.13.2"
 kotlin = "2.3.21"
-ktor = "3.5.0"
-kotlinx-coroutines = "1.10.2"
+ktor = "3.5.1"
+kotlinx-coroutines = "1.11.0"
 
 [libraries]
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
diff --git a/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts b/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
index aecdb33ba..0d2901a4f 100644
--- a/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
     kotlin("jvm") version "2.3.0"
     kotlin("plugin.serialization") version "2.3.0"
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
     id("org.jetbrains.kotlinx.rpc.plugin") version "0.10.1"
 }
 
diff --git a/codeSnippets/snippets/tutorial-server-db-integration/settings.gradle.kts b/codeSnippets/snippets/tutorial-server-db-integration/settings.gradle.kts
index 6acf66e4d..c7ff9b97f 100644
--- a/codeSnippets/snippets/tutorial-server-db-integration/settings.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-db-integration/settings.gradle.kts
@@ -15,7 +15,7 @@ dependencyResolutionManagement {
         mavenCentral()
     }
     versionCatalogs {
-        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.0")
+        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.1")
     }
 }
 
diff --git a/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts b/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
index 01a2f20d4..9e33646a7 100644
--- a/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
@@ -8,7 +8,7 @@ val h2_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
     id("org.jetbrains.kotlin.plugin.serialization") version "2.2.20"
 }
 
diff --git a/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml b/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
index 7f9524e55..b2f46fa13 100644
--- a/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
+++ b/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
@@ -10,7 +10,7 @@
     <properties>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin_version>2.3.21</kotlin_version>
-        <ktor_version>3.5.0</ktor_version>
+        <ktor_version>3.5.1</ktor_version>
         <logback_version>1.5.33</logback_version>
         <slf4j_version>2.0.9</slf4j_version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/codeSnippets/snippets/tutorial-server-restful-api/settings.gradle.kts b/codeSnippets/snippets/tutorial-server-restful-api/settings.gradle.kts
index 2d16a46cc..c619ce889 100644
--- a/codeSnippets/snippets/tutorial-server-restful-api/settings.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-restful-api/settings.gradle.kts
@@ -12,7 +12,7 @@ dependencyResolutionManagement {
         mavenCentral()
     }
     versionCatalogs {
-        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.0")
+        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.1")
     }
 }
 
diff --git a/codeSnippets/snippets/tutorial-server-routing-and-requests/settings.gradle.kts b/codeSnippets/snippets/tutorial-server-routing-and-requests/settings.gradle.kts
index 63cf929c3..d1c149097 100644
--- a/codeSnippets/snippets/tutorial-server-routing-and-requests/settings.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-routing-and-requests/settings.gradle.kts
@@ -12,7 +12,7 @@ dependencyResolutionManagement {
         mavenCentral()
     }
     versionCatalogs {
-        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.0")
+        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.1")
     }
 }
 
diff --git a/codeSnippets/snippets/tutorial-server-web-application/settings.gradle.kts b/codeSnippets/snippets/tutorial-server-web-application/settings.gradle.kts
index 8e974b8db..d2ea251ec 100644
--- a/codeSnippets/snippets/tutorial-server-web-application/settings.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-web-application/settings.gradle.kts
@@ -14,7 +14,7 @@ dependencyResolutionManagement {
         mavenCentral()
     }
     versionCatalogs {
-        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.0")
+        create("ktorLibs").from("io.ktor:ktor-version-catalog:3.5.1")
     }
 }
 
diff --git a/codeSnippets/snippets/tutorial-website-static/build.gradle.kts b/codeSnippets/snippets/tutorial-website-static/build.gradle.kts
index 2fbaccc67..674b15aa3 100644
--- a/codeSnippets/snippets/tutorial-website-static/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-website-static/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    id("io.ktor.plugin") version "3.5.0"
+    id("io.ktor.plugin") version "3.5.1"
 }
 
 application {
diff --git a/help-versions.json b/help-versions.json
index 7102ee499..ffb123669 100644
--- a/help-versions.json
+++ b/help-versions.json
@@ -10,7 +10,7 @@
     "isCurrent": false
   },
   {
-    "version": "3.5.0",
+    "version": "3.5.1",
     "url": "/docs/",
     "isCurrent": true
   }
diff --git a/project.ihp b/project.ihp
index fe4a2b329..019e7ac2e 100644
--- a/project.ihp
+++ b/project.ihp
@@ -14,7 +14,7 @@
     <categories src="c.list"/>
     <instance src="ktor.tree"
               web-path="/docs/"
-              version="3.5.0"
+              version="3.5.1"
               id="docs"
               keymaps-mode="none"/>
 
diff --git a/topics/releases.md b/topics/releases.md
index 6c5fd08a4..aeb58c811 100644
--- a/topics/releases.md
+++ b/topics/releases.md
@@ -33,6 +33,15 @@ The following table lists details of the latest Ktor releases.
 
 <table>
 <tr><td>Version</td><td>Release Date</td><td>Highlights</td></tr>
+<tr><td>3.5.1</td><td>June 26, 2026</td><td>
+<p>
+A patch release including OpenAPI plugin improvements, expanded authentication KDoc documentation, and a wide range of
+bug fixes covering Kotlin 2.4 compiler compatibility, HTTP and caching behavior, authentication, WebRTC stability, and
+platform-specific issues across JVM, Darwin, Android, and Windows.
+</p>
+<var name="version" value="3.5.1"/>
+<include from="lib.topic" element-id="release_details_link"/>
+</td></tr>
 <tr><td>3.5.0</td><td>May 15, 2026</td><td>
 <p>
 A minor release that introduces RFC 7616 Digest authentication support, custom DNS resolver configuration for OkHttp
diff --git a/topics/server-custom-plugins.md b/topics/server-custom-plugins.md
index 38284d1d4..f50e8cbd3 100644
--- a/topics/server-custom-plugins.md
+++ b/topics/server-custom-plugins.md
@@ -142,7 +142,7 @@ handle `transformBody` inside `onCallReceive` as follows:
    used to check the requested data type.
 2. `data` is a lambda argument that allows you to receive a request body
    as [ByteReadChannel](https://api.ktor.io/ktor-io/io.ktor.utils.io/-byte-read-channel/index.html) and convert it to
-   the required type. In the example above, `ByteReadChannel.readUTF8Line` is used to read a request body.
+   the required type. In the example above, `ByteReadChannel.readLine()` is used to read a request body.
 3. Finally, you need to transform and return data. In our example, `1` is added to the received integer value.
 
 You can find the full example
diff --git a/v.list b/v.list
index 16e67b708..f0ac674b8 100644
--- a/v.list
+++ b/v.list
@@ -4,9 +4,9 @@
 
 <vars>
 
-    <var name="ktor_version" value="3.5.0"/>
+    <var name="ktor_version" value="3.5.1"/>
     <var name="kotlin_version" value="2.3.21"/>
-    <var name="coroutines_version" value="1.9.0"/>
+    <var name="coroutines_version" value="1.11.0"/>
     <var name="kotlin_css_version" value="1.0.0-pre.625"/>
     <var name="logback_version" value="1.5.6"/>
     <var name="prometheus_version" value="1.10.3"/>