diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f3a78d427c..82782f96337 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@
     * New property `MPPFile#withoutSlashAtTheEnd`
     * Extension `clamp` has been deprecated
     * New extension `Iterable#diff`
+* `Serialization`:
+    * New operators `TypedSerializer#plusAssign` and `TypedSerializer#minusAssign`
 
 ## 0.5.24
 
diff --git a/serialization/typed_serializer/src/commonMain/kotlin/dev/inmo/micro_utils/serialization/typed_serializer/TypedSerializer.kt b/serialization/typed_serializer/src/commonMain/kotlin/dev/inmo/micro_utils/serialization/typed_serializer/TypedSerializer.kt
index 158d22994e5..3e6d9045f34 100644
--- a/serialization/typed_serializer/src/commonMain/kotlin/dev/inmo/micro_utils/serialization/typed_serializer/TypedSerializer.kt
+++ b/serialization/typed_serializer/src/commonMain/kotlin/dev/inmo/micro_utils/serialization/typed_serializer/TypedSerializer.kt
@@ -11,6 +11,7 @@ open class TypedSerializer<T : Any>(
     presetSerializers: Map<String, KSerializer<out T>> = emptyMap(),
 ) : KSerializer<T> {
     protected val serializers = presetSerializers.toMutableMap()
+    @ExperimentalSerializationApi
     @InternalSerializationApi
     override val descriptor: SerialDescriptor = buildSerialDescriptor(
         "TypedSerializer",
@@ -32,8 +33,9 @@ open class TypedSerializer<T : Any>(
         element("value", ContextualSerializer(kClass).descriptor)
     }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
-    open override fun deserialize(decoder: Decoder): T {
+    override fun deserialize(decoder: Decoder): T {
         return decoder.decodeStructure(descriptor) {
             var type: String? = null
             lateinit var result: T
@@ -56,13 +58,15 @@ open class TypedSerializer<T : Any>(
         }
     }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
     protected open fun <O: T> CompositeEncoder.encode(value: O) {
         encodeSerializableElement(descriptor, 1, value::class.serializer() as KSerializer<O>, value)
     }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
-    open override fun serialize(encoder: Encoder, value: T) {
+    override fun serialize(encoder: Encoder, value: T) {
         encoder.encodeStructure(descriptor) {
             val valueSerializer = value::class.serializer()
             val type = serializers.keys.first { serializers[it] == valueSerializer }
@@ -81,6 +85,16 @@ open class TypedSerializer<T : Any>(
     }
 }
 
+@InternalSerializationApi
+operator fun <T : Any> TypedSerializer<T>.plusAssign(kClass: KClass<T>) {
+    include(kClass.simpleName!!, kClass.serializer())
+}
+
+@InternalSerializationApi
+operator fun <T : Any> TypedSerializer<T>.minusAssign(kClass: KClass<T>) {
+    exclude(kClass.simpleName!!)
+}
+
 inline fun <reified T : Any> TypedSerializer(
     presetSerializers: Map<String, KSerializer<out T>> = emptyMap()
 ) = TypedSerializer(T::class, presetSerializers)