diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c45e7f..9e26f70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.5.5-alpha] - 2026-04-15
+
+### Added
+
+- Добавлена поддержка .NET 8.
+
 ## [0.5.4-alpha] - 2026-04-10
 
 ### Fixed
diff --git a/examples/Max.Bot.Examples/Max.Bot.Examples.csproj b/examples/Max.Bot.Examples/Max.Bot.Examples.csproj
index 91d42bd..f98f973 100644
--- a/examples/Max.Bot.Examples/Max.Bot.Examples.csproj
+++ b/examples/Max.Bot.Examples/Max.Bot.Examples.csproj
@@ -2,9 +2,9 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Max.Bot/Max.Bot.csproj b/src/Max.Bot/Max.Bot.csproj
index 6c24dd0..6f95ca4 100644
--- a/src/Max.Bot/Max.Bot.csproj
+++ b/src/Max.Bot/Max.Bot.csproj
@@ -1,12 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 
     <PackageId>MaxMessenger.Bot</PackageId>
-    <Version>0.5.4-alpha</Version>
+    <Version>0.5.5-alpha</Version>
     <Authors>MaxBotNet Contributors</Authors>
     <Description>C# library for Max Messenger Bot API (.NET 9)</Description>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
@@ -15,6 +14,7 @@
     <PackageTags>max;messenger;bot;api;csharp;dotnet;net9</PackageTags>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <PackageReleaseNotes>See CHANGELOG.md for details.</PackageReleaseNotes>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/Max.Bot.Tests/Max.Bot.Tests.csproj b/tests/Max.Bot.Tests/Max.Bot.Tests.csproj
index 7c169e1..c0e7456 100644
--- a/tests/Max.Bot.Tests/Max.Bot.Tests.csproj
+++ b/tests/Max.Bot.Tests/Max.Bot.Tests.csproj
@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
@@ -9,6 +8,7 @@
     <CollectCoverage>true</CollectCoverage>
     <CoverletOutput>$(MSBuildProjectDirectory)\TestResults\Coverage\coverage</CoverletOutput>
     <CoverletOutputFormat>cobertura</CoverletOutputFormat>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>