diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 3c827aeef..0992b6011 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -30,7 +30,7 @@ env:
   ALGOLIA_INDEX_NAME: 'prod_kotlin_rpc'
   ALGOLIA_KEY: '${{ secrets.ALGOLIA_KEY }}'
   CONFIG_JSON_PRODUCT: 'kotlinx-rpc'
-  CONFIG_JSON_VERSION: '0.8.0'
+  CONFIG_JSON_VERSION: '0.8.1'
   DOKKA_ARTIFACT: 'dokka.zip'
   ASSEMBLE_DIR: '__docs_assembled'
   ASSEMBLE_ARTIFACT: 'assembled.zip'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 491a5e251..013e15dc1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,31 @@
+# 0.8.1
+> Published 9 July 2025
+
+### Bug fixes 🐛
+* Propagate transport coroutine context by @yakivy in https://github.com/Kotlin/kotlinx-rpc/pull/374
+* Fix compiler bugs by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/382
+* kRPC client initialization is not single shot by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/385
+
+### Documentation 📗
+* Grpc sample update by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/371
+* Fix dokka API button for all modules by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/381
+
+### Infra 🚧
+* Update pages publication and api link by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/375
+* Added artifacts validation by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/377
+
+### Other Changes 🧹
+* Ci updates by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/370
+* Updated CSM sources for template generation by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/372
+* Update strict-mode.topic by @BierDav in https://github.com/Kotlin/kotlinx-rpc/pull/380
+* Update Ktor to 3.2.1 and samples by @Mr3zee in https://github.com/Kotlin/kotlinx-rpc/pull/383
+
+## New Contributors
+* @yakivy made their first contribution in https://github.com/Kotlin/kotlinx-rpc/pull/374
+* @BierDav made their first contribution in https://github.com/Kotlin/kotlinx-rpc/pull/380
+
+**Full Changelog**: https://github.com/Kotlin/kotlinx-rpc/compare/0.8.0...0.8.1
+
 # 0.8.0
 > Published 30 June 2025
 
diff --git a/README.md b/README.md
index a9605b3b1..f255dc72c 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ Example of a setup in a project's `build.gradle.kts`:
 plugins {
     kotlin("multiplatform") version "2.2.0"
     kotlin("plugin.serialization") version "2.2.0"
-    id("org.jetbrains.kotlinx.rpc.plugin") version "0.8.0"
+    id("org.jetbrains.kotlinx.rpc.plugin") version "0.8.1"
 }
 ```
 
@@ -151,15 +151,15 @@ And now you can add dependencies to your project:
 ```kotlin
 dependencies {
     // Client API
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-client:0.8.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-client:0.8.1")
     // Server API
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-server:0.8.0") 
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-server:0.8.1") 
     // Serialization module. Also, protobuf and cbor are provided
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-serialization-json:0.8.0") 
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-serialization-json:0.8.1") 
 
     // Transport implementation for Ktor
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-client:0.8.0")
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-server:0.8.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-client:0.8.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-server:0.8.1")
 
     // Ktor API
     implementation("io.ktor:ktor-client-cio-jvm:$ktor_version")
diff --git a/core/api/core.api b/core/api/core.api
index d208cb15c..f9064281a 100644
--- a/core/api/core.api
+++ b/core/api/core.api
@@ -49,6 +49,7 @@ public abstract interface class kotlinx/rpc/descriptor/RpcParameter {
 	public abstract fun getAnnotations ()Ljava/util/List;
 	public abstract fun getName ()Ljava/lang/String;
 	public abstract fun getType ()Lkotlinx/rpc/descriptor/RpcType;
+	public abstract fun isOptional ()Z
 }
 
 public abstract interface class kotlinx/rpc/descriptor/RpcServiceDescriptor {
diff --git a/core/api/core.klib.api b/core/api/core.klib.api
index 258d8ca34..4af66af8d 100644
--- a/core/api/core.klib.api
+++ b/core/api/core.klib.api
@@ -38,6 +38,8 @@ abstract interface <#A: kotlin/Any> kotlinx.rpc.descriptor/RpcServiceDescriptor
 abstract interface kotlinx.rpc.descriptor/RpcParameter { // kotlinx.rpc.descriptor/RpcParameter|null[0]
     abstract val annotations // kotlinx.rpc.descriptor/RpcParameter.annotations|{}annotations[0]
         abstract fun <get-annotations>(): kotlin.collections/List<kotlin/Annotation> // kotlinx.rpc.descriptor/RpcParameter.annotations.<get-annotations>|<get-annotations>(){}[0]
+    abstract val isOptional // kotlinx.rpc.descriptor/RpcParameter.isOptional|{}isOptional[0]
+        abstract fun <get-isOptional>(): kotlin/Boolean // kotlinx.rpc.descriptor/RpcParameter.isOptional.<get-isOptional>|<get-isOptional>(){}[0]
     abstract val name // kotlinx.rpc.descriptor/RpcParameter.name|{}name[0]
         abstract fun <get-name>(): kotlin/String // kotlinx.rpc.descriptor/RpcParameter.name.<get-name>|<get-name>(){}[0]
     abstract val type // kotlinx.rpc.descriptor/RpcParameter.type|{}type[0]
diff --git a/docs/pages/kotlinx-rpc/help-versions.json b/docs/pages/kotlinx-rpc/help-versions.json
index 2c7d0e0ad..1fe84fcc5 100644
--- a/docs/pages/kotlinx-rpc/help-versions.json
+++ b/docs/pages/kotlinx-rpc/help-versions.json
@@ -1,3 +1,3 @@
 [
-  {"version":"0.8.0","url":"/kotlinx-rpc/0.8.0/","isCurrent":true}
+  {"version":"0.8.1","url":"/kotlinx-rpc/0.8.1/","isCurrent":true}
 ]
diff --git a/docs/pages/kotlinx-rpc/topics/changelog.md b/docs/pages/kotlinx-rpc/topics/changelog.md
index 8c293a22f..f40fa3f52 100644
--- a/docs/pages/kotlinx-rpc/topics/changelog.md
+++ b/docs/pages/kotlinx-rpc/topics/changelog.md
@@ -2,6 +2,35 @@
 
 This page contains all changes throughout releases of the library.
 
+## 0.8.1
+> Published 9 July 2025
+
+**Full Changelog**: [0.8.0...0.8.1](https://github.com/Kotlin/kotlinx-rpc/compare/0.8.0...0.8.1)
+
+#### Bug fixes 🐛 {id=Bug_fixes_0_8_1}
+* Propagate transport coroutine context by [@yakivy](https://github.com/yakivy) in [#374](https://github.com/Kotlin/kotlinx-rpc/pull/374)
+* Fix compiler bugs by [@Mr3zee](https://github.com/Mr3zee) in [#382](https://github.com/Kotlin/kotlinx-rpc/pull/382)
+* kRPC client initialization is not single shot by [@Mr3zee](https://github.com/Mr3zee) in [#385](https://github.com/Kotlin/kotlinx-rpc/pull/385)
+
+#### Documentation 📗 {id=Documentation_0_8_1}
+* Grpc sample update by [@Mr3zee](https://github.com/Mr3zee) in [#371](https://github.com/Kotlin/kotlinx-rpc/pull/371)
+* Fix dokka API button for all modules by [@Mr3zee](https://github.com/Mr3zee) in [#381](https://github.com/Kotlin/kotlinx-rpc/pull/381)
+
+#### Infra 🚧 {id=Infra_0_8_1}
+* Update pages publication and api link by [@Mr3zee](https://github.com/Mr3zee) in [#375](https://github.com/Kotlin/kotlinx-rpc/pull/375)
+* Added artifacts validation by [@Mr3zee](https://github.com/Mr3zee) in [#377](https://github.com/Kotlin/kotlinx-rpc/pull/377)
+
+#### Other Changes 🧹 {id=Other_Changes_0_8_1}
+* Ci updates by [@Mr3zee](https://github.com/Mr3zee) in [#370](https://github.com/Kotlin/kotlinx-rpc/pull/370)
+* Updated CSM sources for template generation by [@Mr3zee](https://github.com/Mr3zee) in [#372](https://github.com/Kotlin/kotlinx-rpc/pull/372)
+* Update strict-mode.topic by [@BierDav](https://github.com/BierDav) in [#380](https://github.com/Kotlin/kotlinx-rpc/pull/380)
+* Update Ktor to 3.2.1 and samples by [@Mr3zee](https://github.com/Mr3zee) in [#383](https://github.com/Kotlin/kotlinx-rpc/pull/383)
+
+### New Contributors {id=New_Contributors_0_8_1}
+* [@yakivy](https://github.com/yakivy) made their first contribution in [#374](https://github.com/Kotlin/kotlinx-rpc/pull/374)
+* [@BierDav](https://github.com/BierDav) made their first contribution in [#380](https://github.com/Kotlin/kotlinx-rpc/pull/380)
+
+
 ## 0.8.0
 > Published 30 June 2025
 
diff --git a/docs/pages/kotlinx-rpc/v.list b/docs/pages/kotlinx-rpc/v.list
index d556cded1..61262d2f6 100644
--- a/docs/pages/kotlinx-rpc/v.list
+++ b/docs/pages/kotlinx-rpc/v.list
@@ -14,6 +14,6 @@
     <var name="host" value="https://kotlin.github.io"/>
 
     <!--  Library versions  -->
-    <var name="kotlinx-rpc-version" value="0.8.0"/>
+    <var name="kotlinx-rpc-version" value="0.8.1"/>
     <var name="kotlin-version" value="2.2.0"/>
 </vars>
diff --git a/docs/pages/kotlinx-rpc/writerside.cfg b/docs/pages/kotlinx-rpc/writerside.cfg
index 69d888c34..2d7ff9821 100644
--- a/docs/pages/kotlinx-rpc/writerside.cfg
+++ b/docs/pages/kotlinx-rpc/writerside.cfg
@@ -12,5 +12,5 @@
     <images dir="images" web-path="images/"/>
     <categories src="c.list"/>
     <vars src="v.list"/>
-    <instance src="rpc.tree" version="0.8.0" web-path="/kotlinx-rpc/"/>
+    <instance src="rpc.tree" version="0.8.1" web-path="/kotlinx-rpc/"/>
 </ihp>
diff --git a/kotlin-js-store/package-lock.json b/kotlin-js-store/package-lock.json
index a58ae0d02..5160c59fa 100644
--- a/kotlin-js-store/package-lock.json
+++ b/kotlin-js-store/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "kotlinx-rpc",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "kotlinx-rpc",
-      "version": "0.8.0",
+      "version": "0.8.1",
       "workspaces": [
         "packages/kotlinx-rpc-core",
         "packages/kotlinx-rpc-core-test",
@@ -36,7 +36,7 @@
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json-test",
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf",
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf-test",
-        "packages_imported/ktor-ktor-client-core/3.2.0"
+        "packages_imported/ktor-ktor-client-core/3.2.1"
       ],
       "devDependencies": {}
     },
@@ -2491,7 +2491,7 @@
       "link": true
     },
     "node_modules/ktor-ktor-client-core": {
-      "resolved": "packages_imported/ktor-ktor-client-core/3.2.0",
+      "resolved": "packages_imported/ktor-ktor-client-core/3.2.1",
       "link": true
     },
     "node_modules/lines-and-columns": {
@@ -4406,8 +4406,9 @@
       "resolved": "https://packages.jetbrains.team/npm/p/krpc/build-deps/zod/-/zod-3.25.67.tgz",
       "integrity": "sha512-idA2YXwpCdqUSKRCACDE6ItZD9TZzy3OZMtpfLoh6oPR47lipysRrJfjzMqFxQ3uJuUPyUeWe1r9vLH33xO/Qw=="
     },
-    "packages_imported/ktor-ktor-client-core/3.2.0": {
-      "version": "3.2.0",
+    "packages_imported/ktor-ktor-client-core/3.2.1": {
+      "name": "ktor-ktor-client-core",
+      "version": "3.2.1",
       "dependencies": {
         "ws": "8.18.0"
       },
@@ -4423,11 +4424,11 @@
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4446,11 +4447,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-client": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-client-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4469,11 +4470,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4492,14 +4493,14 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-client": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "ws": "8.18.0"
       },
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-client-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0",
         "ws": "8.18.0"
@@ -4519,11 +4520,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4542,11 +4543,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-server": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-server-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4565,11 +4566,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-logging": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-logging-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4588,11 +4589,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-cbor": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-cbor-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4611,11 +4612,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4634,11 +4635,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4657,11 +4658,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4680,11 +4681,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-server": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-server-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4703,11 +4704,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-test-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4726,11 +4727,11 @@
       }
     },
     "packages/kotlinx-rpc-utils": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-utils-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
diff --git a/kotlin-js-store/wasm/package-lock.json b/kotlin-js-store/wasm/package-lock.json
index 75d47c3e6..9865b374c 100644
--- a/kotlin-js-store/wasm/package-lock.json
+++ b/kotlin-js-store/wasm/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "kotlinx-rpc",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "kotlinx-rpc",
-      "version": "0.8.0",
+      "version": "0.8.1",
       "workspaces": [
         "packages/kotlinx-rpc-core",
         "packages/kotlinx-rpc-core-test",
@@ -36,7 +36,7 @@
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json-test",
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf",
         "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf-test",
-        "packages_imported/ktor-ktor-client-core-wasm-js/3.2.0"
+        "packages_imported/ktor-ktor-client-core-wasm-js/3.2.1"
       ],
       "devDependencies": {}
     },
@@ -2491,7 +2491,7 @@
       "link": true
     },
     "node_modules/ktor-ktor-client-core-wasm-js": {
-      "resolved": "packages_imported/ktor-ktor-client-core-wasm-js/3.2.0",
+      "resolved": "packages_imported/ktor-ktor-client-core-wasm-js/3.2.1",
       "link": true
     },
     "node_modules/lines-and-columns": {
@@ -4406,8 +4406,9 @@
       "resolved": "https://packages.jetbrains.team/npm/p/krpc/build-deps/zod/-/zod-3.25.67.tgz",
       "integrity": "sha512-idA2YXwpCdqUSKRCACDE6ItZD9TZzy3OZMtpfLoh6oPR47lipysRrJfjzMqFxQ3uJuUPyUeWe1r9vLH33xO/Qw=="
     },
-    "packages_imported/ktor-ktor-client-core-wasm-js/3.2.0": {
-      "version": "3.2.0",
+    "packages_imported/ktor-ktor-client-core-wasm-js/3.2.1": {
+      "name": "ktor-ktor-client-core-wasm-js",
+      "version": "3.2.1",
       "dependencies": {
         "ws": "8.18.0"
       },
@@ -4423,11 +4424,11 @@
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4445,11 +4446,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-client": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-client-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4467,11 +4468,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4489,14 +4490,14 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-client": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "ws": "8.18.0"
       },
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-client-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0",
         "ws": "8.18.0"
@@ -4515,11 +4516,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4537,11 +4538,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-server": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-ktor-krpc-ktor-server-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4559,11 +4560,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-logging": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-logging-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4581,11 +4582,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-cbor": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-cbor-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4603,11 +4604,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-core": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-core-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4625,11 +4626,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-json-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4647,11 +4648,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-serialization-krpc-serialization-protobuf-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4669,11 +4670,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-server": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-server-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4691,11 +4692,11 @@
       }
     },
     "packages/kotlinx-rpc-krpc-krpc-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-krpc-krpc-test-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
@@ -4713,11 +4714,11 @@
       }
     },
     "packages/kotlinx-rpc-utils": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "devDependencies": {}
     },
     "packages/kotlinx-rpc-utils-test": {
-      "version": "0.8.0",
+      "version": "0.8.1",
       "dependencies": {
         "puppeteer": "24.9.0"
       },
diff --git a/krpc/krpc-core/src/commonMain/kotlin/kotlinx/rpc/krpc/internal/SerializationUtils.kt b/krpc/krpc-core/src/commonMain/kotlin/kotlinx/rpc/krpc/internal/SerializationUtils.kt
index f32b6dd98..5ed02c722 100644
--- a/krpc/krpc-core/src/commonMain/kotlin/kotlinx/rpc/krpc/internal/SerializationUtils.kt
+++ b/krpc/krpc-core/src/commonMain/kotlin/kotlinx/rpc/krpc/internal/SerializationUtils.kt
@@ -15,7 +15,6 @@ import kotlinx.serialization.descriptors.buildClassSerialDescriptor
 import kotlinx.serialization.encoding.*
 import kotlinx.serialization.modules.SerializersModule
 import kotlin.reflect.KType
-import kotlin.reflect.KTypeParameter
 
 @OptIn(ExperimentalSerializationApi::class)
 internal fun SerializersModule.buildContextualInternal(type: KType): KSerializer<Any?>? {
diff --git a/krpc/krpc-test/src/commonTest/kotlin/kotlinx/rpc/krpc/test/TransportTest.kt b/krpc/krpc-test/src/commonTest/kotlin/kotlinx/rpc/krpc/test/TransportTest.kt
index 6be7387f2..6e29b8f46 100644
--- a/krpc/krpc-test/src/commonTest/kotlin/kotlinx/rpc/krpc/test/TransportTest.kt
+++ b/krpc/krpc-test/src/commonTest/kotlin/kotlinx/rpc/krpc/test/TransportTest.kt
@@ -6,6 +6,7 @@ package kotlinx.rpc.krpc.test
 
 import kotlinx.atomicfu.atomic
 import kotlinx.coroutines.*
+import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.test.TestResult
 import kotlinx.coroutines.test.TestScope
 import kotlinx.rpc.*
@@ -87,12 +88,20 @@ class TransportTest {
             val logger = RpcInternalCommonLogger.logger("TransportTest")
 
             val logs = mutableListOf<String>()
+            val logsChannel = Channel<String>(Channel.UNLIMITED)
+
+            val logsJob = launch(CoroutineName("logs collector")) {
+                for (log in logsChannel) {
+                    logs.add(log)
+                }
+            }
+
             RpcInternalDumpLoggerContainer.set(object : RpcInternalDumpLogger {
                 override val isEnabled: Boolean = true
 
                 override fun dump(vararg tags: String, message: () -> String) {
                     val message = "${tags.joinToString(" ") { "[$it]" }} ${message()}"
-                    logs.add(message)
+                    logsChannel.trySend(message)
                     logger.info { message }
                 }
             })
@@ -100,6 +109,8 @@ class TransportTest {
             block(logs)
 
             RpcInternalDumpLoggerContainer.set(null)
+            logsJob.cancelAndJoin()
+            logsChannel.close()
         }
 
     @Test
@@ -247,21 +258,24 @@ class TransportTest {
         transports.cancel()
     }
 
-    private val clientHandshake = ".*\\[Client] \\[Send] \\{\"type\":\"${KrpcProtocolMessage.Handshake.serializer().descriptor.serialName}\".*+".toRegex()
+    private val handshakeClassSerialName = KrpcProtocolMessage.Handshake.serializer().descriptor.serialName
+    @Suppress("RegExpRedundantEscape") // fails on js otherwise
+    private val clientHandshake = ".*\\[Client\\] \\[Send\\] \\{\"type\":\"$handshakeClassSerialName\".*".toRegex()
+
+    private val transportInitialized = atomic(0)
+    private val configInitialized = atomic(0)
 
     @Test
     fun transportInitializedOnlyOnce() = runTest { logs ->
         val localTransport = LocalTransport()
-        var transportInitialized = 0
-        var configInitialized = 0
         val client = object : KrpcClient() {
             override suspend fun initializeTransport(): KrpcTransport {
-                transportInitialized++
+                transportInitialized.getAndIncrement()
                 return localTransport.client
             }
 
             override fun initializeConfig(): KrpcConfig.Client {
-                configInitialized++
+                configInitialized.getAndIncrement()
                 return clientConfig
             }
         }
@@ -274,8 +288,8 @@ class TransportTest {
         client.withService<Echo>().apply { echo("foo"); echo("bar") }
         client.withService<Second>().apply{ second("bar"); second("baz") }
 
-        assertEquals(1, transportInitialized)
-        assertEquals(1, configInitialized)
+        assertEquals(1, transportInitialized.value)
+        assertEquals(1, configInitialized.value)
         assertEquals(1, logs.count { it.matches(clientHandshake) })
     }
 
diff --git a/samples/ktor-all-platforms-app/gradle/libs.versions.toml b/samples/ktor-all-platforms-app/gradle/libs.versions.toml
index ef451a2f6..0954b4b7b 100644
--- a/samples/ktor-all-platforms-app/gradle/libs.versions.toml
+++ b/samples/ktor-all-platforms-app/gradle/libs.versions.toml
@@ -19,7 +19,7 @@ ktor = "3.2.1"
 logback = "1.5.18"
 serialization = "1.8.1"
 coroutines = "1.10.2"
-kotlinx-rpc = "0.8.0"
+kotlinx-rpc = "0.8.1"
 
 [libraries]
 # kotlin
diff --git a/samples/ktor-android-app/gradle/libs.versions.toml b/samples/ktor-android-app/gradle/libs.versions.toml
index 469252019..03ada9a45 100644
--- a/samples/ktor-android-app/gradle/libs.versions.toml
+++ b/samples/ktor-android-app/gradle/libs.versions.toml
@@ -15,7 +15,7 @@ ktor = "3.2.1"
 kotlinx-serialization-json = "1.8.1"
 kotlinx-coroutines-core = "1.10.2"
 logback = "1.5.18"
-kotlinx-rpc = "0.8.0"
+kotlinx-rpc = "0.8.1"
 
 [libraries]
 # kotlin
diff --git a/samples/ktor-web-app/gradle/libs.versions.toml b/samples/ktor-web-app/gradle/libs.versions.toml
index b3269be9e..c138f3f49 100644
--- a/samples/ktor-web-app/gradle/libs.versions.toml
+++ b/samples/ktor-web-app/gradle/libs.versions.toml
@@ -5,7 +5,7 @@ ktor = "3.2.1"
 kotlinx-serialization-json = "1.8.1"
 kotlinx-coroutines-core = "1.10.2"
 logback = "1.5.18"
-kotlinx-rpc = "0.8.0"
+kotlinx-rpc = "0.8.1"
 
 [libraries]
 # kotlin
diff --git a/samples/simple-ktor-app/build.gradle.kts b/samples/simple-ktor-app/build.gradle.kts
index fc8fa3192..9d4fd2c0c 100644
--- a/samples/simple-ktor-app/build.gradle.kts
+++ b/samples/simple-ktor-app/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     kotlin("jvm") version "2.2.0"
     kotlin("plugin.serialization") version "2.2.0"
     id("io.ktor.plugin") version "3.2.1"
-    id("org.jetbrains.kotlinx.rpc.plugin") version "0.8.0"
+    id("org.jetbrains.kotlinx.rpc.plugin") version "0.8.1"
 }
 
 group = "kotlinx.rpc.sample"
@@ -28,12 +28,12 @@ kotlin {
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-client:0.8.0")
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-server:0.8.0")
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-serialization-json:0.8.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-client:0.8.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-server:0.8.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-serialization-json:0.8.1")
 
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-client:0.8.0")
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-server:0.8.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-client:0.8.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-krpc-ktor-server:0.8.1")
 
     implementation("io.ktor:ktor-client-cio")
     implementation("io.ktor:ktor-server-netty-jvm")
diff --git a/versions-root/libs.versions.toml b/versions-root/libs.versions.toml
index ebda05bc6..29c961c90 100644
--- a/versions-root/libs.versions.toml
+++ b/versions-root/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 # core library version
-kotlinx-rpc = "0.8.0"
+kotlinx-rpc = "0.8.1"
 
 # kotlin
 kotlin-lang = "2.2.0" # or env.KOTLIN_VERSION