diff --git a/ByBit.Net/Bybit.Net.csproj b/ByBit.Net/Bybit.Net.csproj
index 0f04fc8..43bd6b7 100644
--- a/ByBit.Net/Bybit.Net.csproj
+++ b/ByBit.Net/Bybit.Net.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
     <Nullable>enable</Nullable>
@@ -7,9 +7,9 @@
   <PropertyGroup>
     <PackageId>Bybit.Net</PackageId>
     <Authors>JKorf</Authors>
-    <PackageVersion>3.19.2</PackageVersion>
-    <AssemblyVersion>3.19.2</AssemblyVersion>
-    <FileVersion>3.19.2</FileVersion>
+    <PackageVersion>4.0.0</PackageVersion>
+    <AssemblyVersion>4.0.0</AssemblyVersion>
+    <FileVersion>4.0.0</FileVersion>
     <Description>Bybit.Net is a client library for accessing the Bybit REST and Websocket API. All data is mapped to readable models and enum values. Additional features include automatic websocket (re)connection management, an implementation for maintaining a client side order book, easy integration with other exchange client libraries and more.</Description>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <PackageTags>Bybit;Bybit.Net;Bybit Client;Bybit API;CryptoCurrency;CryptoCurrency Exchange</PackageTags>
diff --git a/README.md b/README.md
index e1c9031..d9b0d9d 100644
--- a/README.md
+++ b/README.md
@@ -157,6 +157,15 @@ Make a one time donation in a crypto currency of your choice. If you prefer to d
 Alternatively, sponsor me on Github using [Github Sponsors](https://github.com/sponsors/JKorf). 
 
 ## Release notes
+* Version 4.0.0 - 07 Jan 2025
+    * Updated from Newtonsoft.Json to System.Text.Json
+    * Added CryptoLoan endpoints
+    * Added client side ratelimiting
+    * Added Type property to XTExchange class
+    * Updated CryptoExchange.Net version
+    * Updated some namespaces
+    * Removed deprecated V1/V2/V3 endpoints, models and enums
+
 * Version 3.19.2 - 03 Jan 2025
     * Added RiskParameters properties to restClient.V5Api.ExchangeData.GetLinearInverseSymbolsAsync response model