diff --git a/ReadMe.txt b/ReadMe.txt
index d7be15f..c62a74b 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -25,6 +25,20 @@ The package contains:
 For more information please contact support@sportradar.com or visit https://iodocs.betradar.com/unifiedsdk/index.html
 
 CHANGE LOG:
+2022-04-26  1.52.0
+Separate HttpClient for critical (summary, player profile, competitor profile and variant market description) and other requests
+Added configuration option for fast HttpClient in OperationManager (default timeout 5s)
+Added GetTimelineEventsAsync to ISportDataProvider - extended with ISportDataProviderV11 
+Improved merging of competitor profile
+Modified sliding expiration of profile cache items to avoid GC congestion
+Improved how SportDataProvider is handling exceptions
+Improved metrics and logging for raw data events
+Improved metrics with app and system metrics
+Added metrics for SemaphorePool
+Fixed exception handling in DataRouterManager
+Extended RawApiDataEventArgs with RequestParams, RequestTime and Language
+Other minor improvements for observability
+
 2022-02-23  1.51.0
 Added BetradarName to IRound (extended with IRoundV3)
 Fix: ICompetition competitors did not expose IsVirtual correctly
diff --git a/example/Sportradar.OddsFeed.SDK.DemoProject/Properties/AssemblyInfo.cs b/example/Sportradar.OddsFeed.SDK.DemoProject/Properties/AssemblyInfo.cs
index abc01d6..3250241 100644
--- a/example/Sportradar.OddsFeed.SDK.DemoProject/Properties/AssemblyInfo.cs
+++ b/example/Sportradar.OddsFeed.SDK.DemoProject/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/example/Sportradar.OddsFeed.SDK.DemoProject/Sportradar.OddsFeed.SDK.DemoProject.csproj b/example/Sportradar.OddsFeed.SDK.DemoProject/Sportradar.OddsFeed.SDK.DemoProject.csproj
index c132527..dc4f41a 100644
--- a/example/Sportradar.OddsFeed.SDK.DemoProject/Sportradar.OddsFeed.SDK.DemoProject.csproj
+++ b/example/Sportradar.OddsFeed.SDK.DemoProject/Sportradar.OddsFeed.SDK.DemoProject.csproj
@@ -50,8 +50,8 @@
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>packages\Newtonsoft.Json.12.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
-    <Reference Include="Sportradar.OddsFeed.SDK, Version=1.51.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>packages\Sportradar.OddsFeed.SDK.1.51.0\lib\net45\Sportradar.OddsFeed.SDK.dll</HintPath>
+    <Reference Include="Sportradar.OddsFeed.SDK, Version=1.52.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\Sportradar.OddsFeed.SDK.1.52.0\lib\net45\Sportradar.OddsFeed.SDK.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.Composition" />
diff --git a/example/Sportradar.OddsFeed.SDK.DemoProject/log4net.config b/example/Sportradar.OddsFeed.SDK.DemoProject/log4net.config
index 564d54a..dbd0111 100644
--- a/example/Sportradar.OddsFeed.SDK.DemoProject/log4net.config
+++ b/example/Sportradar.OddsFeed.SDK.DemoProject/log4net.config
@@ -9,14 +9,14 @@
     <appender name="DebugAppender" type="log4net.Appender.DebugAppender">
       <immediateFlush value="true"/>
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
 
     <!-- Console appender writes to console -->
     <appender name="ConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
       <filter type="log4net.Filter.StringMatchFilter">
         <stringToMatch value="Registering performance counter" />
@@ -53,7 +53,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; %thread&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -74,7 +74,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; %thread&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
     
@@ -108,7 +108,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %thread&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
     
@@ -125,7 +125,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; %thread&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -142,7 +142,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; %thread&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -159,7 +159,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
 
diff --git a/example/Sportradar.OddsFeed.SDK.DemoProject/packages.config b/example/Sportradar.OddsFeed.SDK.DemoProject/packages.config
index 78fdcff..f6ba7c3 100644
--- a/example/Sportradar.OddsFeed.SDK.DemoProject/packages.config
+++ b/example/Sportradar.OddsFeed.SDK.DemoProject/packages.config
@@ -9,7 +9,7 @@
   <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net45" />
   <package id="NETStandard.Library" version="1.6.1" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" />
-  <package id="Sportradar.OddsFeed.SDK" version="1.51.0" targetFramework="net45" />
+  <package id="Sportradar.OddsFeed.SDK" version="1.52.0" targetFramework="net45" />
   <package id="System.Collections" version="4.3.0" targetFramework="net45" />
   <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net45" />
   <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="net45" />
@@ -20,7 +20,7 @@
   <package id="System.IO.Compression" version="4.3.0" targetFramework="net45" />
   <package id="System.Linq" version="4.3.0" targetFramework="net45" />
   <package id="System.Linq.Expressions" version="4.3.0" targetFramework="net45" />
-  <package id="System.Net.Http" version="4.3.0" targetFramework="net45" />
+  <package id="System.Net.Http" version="4.3.4" targetFramework="net45" />
   <package id="System.Net.Primitives" version="4.3.0" targetFramework="net45" />
   <package id="System.ObjectModel" version="4.3.0" targetFramework="net45" />
   <package id="System.Reflection" version="4.3.0" targetFramework="net45" />
@@ -34,7 +34,7 @@
   <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="net45" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net45" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net45" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net45" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net45" />
   <package id="System.Threading" version="4.3.0" targetFramework="net45" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net45" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net45" />
diff --git a/example/Sportradar.OddsFeed.SDK.DemoProject/resources/log4net.sdk.config b/example/Sportradar.OddsFeed.SDK.DemoProject/resources/log4net.sdk.config
index de20c32..dbd0111 100644
--- a/example/Sportradar.OddsFeed.SDK.DemoProject/resources/log4net.sdk.config
+++ b/example/Sportradar.OddsFeed.SDK.DemoProject/resources/log4net.sdk.config
@@ -9,14 +9,14 @@
     <appender name="DebugAppender" type="log4net.Appender.DebugAppender">
       <immediateFlush value="true"/>
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}, %level %logger{1}&#9;  %message%newline" />
+        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
 
     <!-- Console appender writes to console -->
     <appender name="ConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%logger{1}&#9; %level&#9; %message%newline" />
+        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
       <filter type="log4net.Filter.StringMatchFilter">
         <stringToMatch value="Registering performance counter" />
@@ -28,7 +28,7 @@
       </mapping>
       <mapping>
         <level value="DEBUG" />
-        <foreColor value="White" />
+        <foreColor value="CYAN" />
       </mapping>
       <mapping>
         <level value="WARN" />
@@ -40,6 +40,23 @@
       </mapping>
     </appender>
 
+    <appender name="FileAppenderExample" type="log4net.Appender.RollingFileAppender">
+      <file type="log4net.Util.PatternString">
+        <conversionPattern value="../../Logs/Example/logExample-%date{yyyyMMdd}.log" />
+      </file>
+      <encoding type="System.Text.UTF8Encoding" />
+      <appendToFile value="true" />
+      <rollingStyle value="Composite" />
+      <datePattern value="yyyyMMdd" />
+      <maxSizeRollBackups value="10" />
+      <maximumFileSize value="100MB" />
+      <staticLogFileName value="true" />
+      <preserveLogFileNameExtension value="true" />
+      <layout type="log4net.Layout.PatternLayout">
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
+      </layout>
+    </appender>
+
     <appender name="FileAppenderExec" type="log4net.Appender.RollingFileAppender">
       <file type="log4net.Util.PatternString">
         <conversionPattern value="../../Logs/Execution/logExec-%date{yyyyMMdd}.log" />
@@ -57,7 +74,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
     
@@ -74,7 +91,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-          <conversionPattern value="%date{HH:mm:ss,fff}&#9; %message%newline" />
+          <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %message%newline" />
       </layout>
     </appender>
     
@@ -91,13 +108,13 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newlinee" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
     
-    <appender name="FileAppenderClient" type="log4net.Appender.RollingFileAppender">
+    <appender name="FileAppenderInteraction" type="log4net.Appender.RollingFileAppender">
       <file type="log4net.Util.PatternString">
-        <conversionPattern value="../../Logs/Iteration/logClient-%date{yyyyMMdd}.log" />
+        <conversionPattern value="../../Logs/Interaction/logInteraction-%date{yyyyMMdd}.log" />
       </file>
       <encoding type="System.Text.UTF8Encoding" />
       <appendToFile value="true" />
@@ -108,7 +125,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -125,7 +142,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -142,7 +159,7 @@
       <staticLogFileName value="true" />
       <preserveLogFileNameExtension value="true" />
       <layout type="log4net.Layout.PatternLayout">
-        <conversionPattern value="%date{HH:mm:ss,fff}&#9; %level&#9; %logger{1}&#9; %message%newline" />
+        <conversionPattern value="%date{yyyy-MM-dd HH:mm:ss,fff}&#9; %level&#9; [%thread]&#9; %logger{1}&#9; %message%newline" />
       </layout>
     </appender>
 
@@ -154,49 +171,57 @@
       <appender-ref ref="FileAppenderExec"/>
     </root>
     
-    <!-- This section configures the log where execution message are written. You can set the level and appender which will process the log entries. Please note that each appender 
-    referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
-    <logger name="Sportradar.OddsFeed.SDK.Execution" additivity="false">
-      <level value="INFO"/>
+    <!-- Logs from the DemoProject are logged only to debug output & console -->
+    <logger name="Sportradar.OddsFeed.SDK.DemoProject" additivity="false">
+      <level value="DEBUG"/>
       <appender-ref ref="DebugAppender"/>
       <appender-ref ref="ConsoleAppender"/>
+      <appender-ref ref="FileAppenderExample" />
+    </logger>
+    
+    <!-- This section configures the log where execution message are written. You can set the level and appender which will process the log entries. Please note that each appender 
+    referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
+    <logger name="Sportradar.OddsFeed.SDK" additivity="false">
+      <level value="DEBUG"/>
+      <!-- <appender-ref ref="DebugAppender"/> -->
+      <!-- <appender-ref ref="ConsoleAppender"/> -->
       <appender-ref ref="FileAppenderExec"/>
     </logger>
 
     <!-- This section configures AMQP traffic log. You can set the level and appender which will process the log entries. Please note that each appender 
     referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
-    <logger name="Sportradar.OddsFeed.SDK.FeedTraffic" additivity="false">
-      <level value="INFO"/>
+    <logger name="Sportradar.OddsFeed.SDK.FeedTraffic"  additivity="false">
+      <level value="DEBUG"/>
       <appender-ref ref="FileAppenderFeed"/>
     </logger>
 
     <!-- This section configures REST traffic log. You can set the level and appender which will process the log entries. Please note that each appender 
     referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
     <logger name="Sportradar.OddsFeed.SDK.RestTraffic" additivity="false">
-      <level value="INFO"/>
+      <level value="DEBUG"/>
       <appender-ref ref="FileAppenderRest"/>
     </logger>
 
     <!-- This section configures the log for client interaction log. You can set the level and appender which will process the log entries. Please note that each appender 
     referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
-    <logger name="Sportradar.OddsFeed.SDK.ClientIteration" additivity="true">
-      <level value="ALL"/>
-      <appender-ref ref="FileAppenderClient"/>
+    <logger name="Sportradar.OddsFeed.SDK.ClientInteraction" additivity="false">
+      <level value="DEBUG"/>
+      <appender-ref ref="FileAppenderInteraction"/>
     </logger>
 
     <!-- This section configures the log used by the caching component within the SDK. You can set the level and appender which will process the log entries. Please note that each appender 
     referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
-    <logger name="Sportradar.OddsFeed.SDK.Cache" additivity="true">
+    <logger name="Sportradar.OddsFeed.SDK.Cache" additivity="false">
       <level value="INFO"/>
       <appender-ref ref="FileAppenderCache"/>
     </logger>
 
     <!-- This section configures the log statistic component within the SDK. You can set the level and appender which will process the log entries. Please note that each appender 
     referenced by the <appender-ref /> tag has to be defined first. If either the level or the appender list is not specified it will be taken from the RootLog -->
-    <logger name="Sportradar.OddsFeed.SDK.Stats" additivity="true">
-      <level value="ALL"/>
+    <logger name="Sportradar.OddsFeed.SDK.Stats" additivity="false">
+      <level value="INFO"/>
       <appender-ref ref="FileAppenderStats"/>
     </logger>
-
   </log4net>
+
 </configuration>
\ No newline at end of file
diff --git a/nuget/Sportradar.OddsFeed.SDK.1.51.0.nupkg b/nuget/Sportradar.OddsFeed.SDK.1.51.0.nupkg
new file mode 100644
index 0000000..2a6a1c2
Binary files /dev/null and b/nuget/Sportradar.OddsFeed.SDK.1.51.0.nupkg differ
diff --git a/nuget/Sportradar.OddsFeed.SDK.1.52.0.nupkg b/nuget/Sportradar.OddsFeed.SDK.1.52.0.nupkg
new file mode 100644
index 0000000..24af462
Binary files /dev/null and b/nuget/Sportradar.OddsFeed.SDK.1.52.0.nupkg differ
diff --git a/src/SportEventHierarchy.png b/src/SportEventHierarchy.png
new file mode 100644
index 0000000..e9990d2
Binary files /dev/null and b/src/SportEventHierarchy.png differ
diff --git a/src/Sportradar.OddsFeed.SDK.API/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK.API/Properties/AssemblyInfo.cs
index 8f29f0a..95e1411 100644
--- a/src/Sportradar.OddsFeed.SDK.API/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK.API/Properties/AssemblyInfo.cs
@@ -41,5 +41,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Sportradar.OddsFeed.SDK.Common/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK.Common/Properties/AssemblyInfo.cs
index 53cc6be..3d7506e 100644
--- a/src/Sportradar.OddsFeed.SDK.Common/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK.Common/Properties/AssemblyInfo.cs
@@ -38,5 +38,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets1.snippets b/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets1.snippets
new file mode 100644
index 0000000..3cc254a
--- /dev/null
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets1.snippets	
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- This is an example code snippets file -->
+<examples>
+  <item id="ClassDefinition#Define">
+    <sampleCode language="CSharp">
+      public class CSharpClass()
+      {
+          // Members go here
+      }
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Public Class VBClass
+          ' Members go here
+      End Class
+    </sampleCode>
+  </item>
+
+  <item id="CreateInstance#Local">
+    <sampleCode language="CSharp">
+      CSharpClass x = new CSharpClass();
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Dim x As VBClass = New VBClass()
+    </sampleCode>
+  </item>
+
+  <item id="CreateInstance#Static">
+    <sampleCode language="CSharp">
+      public static CSharpClass sharedInstance = new CSharpClass();
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Public Shared sharedInstance As VBClass = New VBClass()
+    </sampleCode>
+  </item>
+</examples>
+
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets2.snippets b/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets2.snippets
new file mode 100644
index 0000000..75f5708
--- /dev/null
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/Code Snippets2.snippets	
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- This is an example code snippets file -->
+<examples>
+  <item id="ClassDefinition2#Define">
+    <sampleCode language="CSharp">
+      public class CSharpClass()
+      {
+          // Members go here
+      }
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Public Class VBClass
+          ' Members go here
+      End Class
+    </sampleCode>
+  </item>
+
+  <item id="CreateInstance2#Local">
+    <sampleCode language="CSharp">
+      CSharpClass x = new CSharpClass();
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Dim x As VBClass = New VBClass()
+    </sampleCode>
+  </item>
+
+  <item id="CreateInstance2#Static">
+    <sampleCode language="CSharp">
+      public static CSharpClass sharedInstance = new CSharpClass();
+    </sampleCode>
+    <sampleCode language="VisualBasic">
+      Public Shared sharedInstance As VBClass = New VBClass()
+    </sampleCode>
+  </item>
+</examples>
+
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/Glossary1.aml b/src/Sportradar.OddsFeed.SDK.Docs/Content/Glossary1.aml
new file mode 100644
index 0000000..85b3cc2
--- /dev/null
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/Glossary1.aml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<topic id="f4cfeeb4-3eea-480c-8c22-1b630cce742a" revisionNumber="1">
+  <developerGlossaryDocument
+    xmlns="http://ddue.schemas.microsoft.com/authoring/2003/5"
+    xmlns:xlink="http://www.w3.org/1999/xlink">
+
+    <glossary>
+      <!-- <title>Optional title</title> -->
+
+      <!-- Glossary division.  You can use these to group entries.  If you only
+           have one group, you can omit it and list the glossaryEntry elements
+           directly.
+
+           If used, be sure to give each glossaryDiv a unique address attribute
+           and a title element.  These will be used to create an index at the
+           top of the glossary page.
+
+           Glossary divisions will appear in the order defined in the topic.
+           Glossary entries will be sorted by the first term for the entry.
+           Terms are sorted by their value. -->
+      <glossaryDiv address="Group1">
+        <title>Group #1</title>
+
+        <glossaryEntry>
+          <terms>
+            <!-- One or more terms associated with the definition.  Add a termId
+               attribute if you need to link to it from a relatedEntry element.
+               Otherwise, it can be omitted.  Terms appear as a comma-separated
+               list above the definition. -->
+            <term termId="xyz">1st term</term>
+            <term>Other term (if any)</term>
+          </terms>
+
+          <definition>
+            <para>The definition of the term(s)</para>
+          </definition>
+
+          <!-- One or more optional related entries.  Creates a "See Also"
+               line after the definition with links to each related term. -->
+          <!-- <relatedEntry termId="xyz" /> -->
+        </glossaryEntry>
+
+      </glossaryDiv>
+
+    </glossary>
+  </developerGlossaryDocument>
+</topic>
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/SDK Technology Architecture1.aml b/src/Sportradar.OddsFeed.SDK.Docs/Content/SDK Technology Architecture1.aml
new file mode 100644
index 0000000..f93c763
--- /dev/null
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/SDK Technology Architecture1.aml	
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<topic id="24b7b343-04b9-4b4c-8e5a-ac36b51ca4f4" revisionNumber="1">
+  <developerSDKTechnologyOverviewArchitectureDocument
+    xmlns="http://ddue.schemas.microsoft.com/authoring/2003/5"
+    xmlns:xlink="http://www.w3.org/1999/xlink">
+
+    <!--
+    <summary>
+      <para>Optional summary abstract</para>
+    </summary>
+    -->
+
+    <introduction>
+      <!-- Uncomment this to generate an outline of the section and sub-section
+           titles.  Specify a numeric value as the inner text to limit it to
+           a specific number of sub-topics when creating the outline.  Specify
+           zero (0) to limit it to top-level sections only.  -->
+      <!-- <autoOutline /> -->
+
+      <para>Required introduction</para>
+    </introduction>
+
+    <!-- Add one or more top-level section elements.  These are collapsible.
+         If using <autoOutline />, add an address attribute to identify it
+         and specify a title so that it can be jumped to with a hyperlink. -->
+    <section address="Section1">
+      <title>Optional section title</title>
+      <content>
+        <!-- Uncomment this to create a sub-section outline
+        <autoOutline /> -->
+        <para>
+          Add one or more sections with content <mediaLinkInline>
+            <image xlink:href="media/help.png"/>
+          </mediaLinkInline> </para>
+      </content>
+    </section>
+
+    <relatedTopics>
+      <!-- One or more of the following:
+           - A local link
+           - An external link
+           - A code entity reference
+      <link xlink:href="Other Topic's ID">Link text</link>
+      <externalLink>
+          <linkText>Link text</linkText>
+          <linkAlternateText>Optional alternate link text</linkAlternateText>
+          <linkUri>URI</linkUri>
+      </externalLink>
+      <codeEntityReference>API member ID</codeEntityReference>
+
+      Examples:
+
+      <link xlink:href="00e97994-e9e6-46e0-b420-5be86b2f8278">Some other topic</link>
+
+      <externalLink>
+          <linkText>SHFB on GitHub</linkText>
+          <linkAlternateText>Go to GitHub</linkAlternateText>
+          <linkUri>https://GitHub.com/EWSoftware/SHFB</linkUri>
+      </externalLink>
+
+      <codeEntityReference>T:TestDoc.TestClass</codeEntityReference>
+      <codeEntityReference>P:TestDoc.TestClass.SomeProperty</codeEntityReference>
+      <codeEntityReference>M:TestDoc.TestClass.#ctor</codeEntityReference>
+      <codeEntityReference>M:TestDoc.TestClass.#ctor(System.String,System.Int32)</codeEntityReference>
+      <codeEntityReference>M:TestDoc.TestClass.ToString</codeEntityReference>
+      <codeEntityReference>M:TestDoc.TestClass.FirstMethod</codeEntityReference>
+      <codeEntityReference>M:TestDoc.TestClass.SecondMethod(System.Int32,System.String)</codeEntityReference>
+
+      -->
+    </relatedTopics>
+  </developerSDKTechnologyOverviewArchitectureDocument>
+</topic>
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/Token File1.tokens b/src/Sportradar.OddsFeed.SDK.Docs/Content/Token File1.tokens
new file mode 100644
index 0000000..9f766d9
--- /dev/null
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/Token File1.tokens	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<content xml:space="preserve" xmlns:ddue="http://ddue.schemas.microsoft.com/authoring/2003/5" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <item id="Example">Token content</item>
+  <item id="SHFB"><ddue:externalLink xmlns:ddue="http://ddue.schemas.microsoft.com/authoring/2003/5">
+    <ddue:linkText>Sandcastle Help File Builder</ddue:linkText>
+    <ddue:linkUri>https://GitHub.com/EWSoftware/SHFB</ddue:linkUri>
+    </ddue:externalLink></item>
+</content>
\ No newline at end of file
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Content/Welcome.aml b/src/Sportradar.OddsFeed.SDK.Docs/Content/Welcome.aml
index 6875ab2..0eac19a 100644
--- a/src/Sportradar.OddsFeed.SDK.Docs/Content/Welcome.aml
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Content/Welcome.aml
@@ -1,36 +1,36 @@
 <?xml version="1.0" encoding="utf-8"?>
 <topic id="1542394b-c0b3-47aa-a3af-5198cc7dcb8f" revisionNumber="1">
 	<developerConceptualDocument xmlns="http://ddue.schemas.microsoft.com/authoring/2003/5" xmlns:xlink="http://www.w3.org/1999/xlink">
-    <introduction>
-      <para>
-        UnifiedFeed SDK is a client library that enables easier integration with the Betradar XML feeds. SDK exposes XML feed service interface in a more user-friendly way and isolates the client from having to do XML feed parsing, proper connection handling, error recovery, event queuing, data caching and dispatching. It also makes a client solution more stable and robust when it comes to feed handling, especially with the release of new and updated XML feed versions.
-      </para>
-      <para>
-        For a quick start consider consulting the Example project also found in Downloads.
-      </para>
-    </introduction>
+	<introduction>
+	  <para>
+		UnifiedFeed SDK is a client library that enables easier integration with the Betradar XML feeds. SDK exposes XML feed service interface in a more user-friendly way and isolates the client from having to do XML feed parsing, proper connection handling, error recovery, event queuing, data caching and dispatching. It also makes a client solution more stable and robust when it comes to feed handling, especially with the release of new and updated XML feed versions.
+	  </para>
+	  <para>
+		For a quick start consider consulting the Example project also found in Downloads.
+	  </para>
+	</introduction>
 
-    <section>
-      <title>Getting Started</title>
-      <content>
-        <para>
-          For a quick start consider consulting the Example project also found in Downloads.
-        </para>
-      </content>
-      <sections>
-        <section>
-          <title>Obtaining the SDK</title>
-          <content>
-            <para>
-              The SDK is provided as a code library (Sportradar.OddsFeed.SDK.dll), which is available on the SDK
-              site and via the NuGet package manager. The usage of NuGet package manager is
-              recommended, since it supports update notifications and makes it easier to obtain new
-              releases of the SDK.
-            </para>
-          </content>
-        </section>
-      </sections>
-    </section>
+	<section>
+	  <title>Getting Started</title>
+	  <content>
+		<para>
+		  For a quick start consider consulting the Example project also found in Downloads.
+		</para>
+	  </content>
+	  <sections>
+		<section>
+		  <title>Obtaining the SDK</title>
+		  <content>
+			<para>
+			  The SDK is provided as a code library (Sportradar.OddsFeed.SDK.dll), which is available on the SDK
+			  site and via the NuGet package manager. The usage of NuGet package manager is
+			  recommended, since it supports update notifications and makes it easier to obtain new
+			  releases of the SDK.
+			</para>
+		  </content>
+		</section>
+	  </sections>
+	</section>
 
 		<relatedTopics>
 			<!--<link xlink:href="590c50ac-a7d5-46af-be20-57e62f69cf9d" />-->
diff --git a/src/Sportradar.OddsFeed.SDK.Docs/Sportradar.OddsFeed.SDK.Docs.shfbproj b/src/Sportradar.OddsFeed.SDK.Docs/Sportradar.OddsFeed.SDK.Docs.shfbproj
index ad4f2cc..8b96efe 100644
--- a/src/Sportradar.OddsFeed.SDK.Docs/Sportradar.OddsFeed.SDK.Docs.shfbproj
+++ b/src/Sportradar.OddsFeed.SDK.Docs/Sportradar.OddsFeed.SDK.Docs.shfbproj
@@ -36,7 +36,7 @@
     <BuildAssemblerVerbosity>OnlyWarningsAndErrors</BuildAssemblerVerbosity>
     <SaveComponentCacheCapacity>100</SaveComponentCacheCapacity>
     <HelpTitle>Odds Feed SDK Documentation</HelpTitle>
-    <HelpFileVersion>1.51.0</HelpFileVersion>
+    <HelpFileVersion>1.52.0</HelpFileVersion>
     <NamingMethod>MemberName</NamingMethod>
     <ContentPlacement>AboveNamespaces</ContentPlacement>
     <RootNamespaceContainer>False</RootNamespaceContainer>
@@ -109,6 +109,8 @@
     <Folder Include="media" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="Content\Glossary1.aml" />
+    <None Include="Content\SDK Technology Architecture1.aml" />
     <None Include="Content\VersionHistory\v1.0.0.0.aml" />
     <None Include="Content\VersionHistory\VersionHistory.aml" />
     <None Include="Content\Welcome.aml" />
@@ -119,6 +121,13 @@
   <ItemGroup>
     <Content Include="icons\Help.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Tokens Include="Content\Token File1.tokens" />
+  </ItemGroup>
+  <ItemGroup>
+    <CodeSnippets Include="Content\Code Snippets1.snippets" />
+    <CodeSnippets Include="Content\Code Snippets2.snippets" />
+  </ItemGroup>
   <!-- Import the SHFB build targets -->
   <Import Project="$(SHFBROOT)\SandcastleHelpFileBuilder.targets" />
   <!-- The pre-build and post-build event properties must appear *after* the targets file import in order to be
diff --git a/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/Caching/CI/PlayerProfileCI.cs b/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/Caching/CI/PlayerProfileCI.cs
index 5a012c7..306beb3 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/Caching/CI/PlayerProfileCI.cs
+++ b/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/Caching/CI/PlayerProfileCI.cs
@@ -251,7 +251,7 @@ internal void Merge(PlayerProfileDTO profile, URN competitorId, CultureInfo cult
                 _competitorId = competitorId;
             }
 
-            if (_fetchedCultures.IsNullOrEmpty())
+            if (_fetchedCultures == null)
             {
                 _fetchedCultures = new List<CultureInfo>();
             }
diff --git a/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/DataProvider.cs b/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/DataProvider.cs
index 4745594..c4b50cc 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/DataProvider.cs
+++ b/src/Sportradar.OddsFeed.SDK.Entities.REST/Internal/DataProvider.cs
@@ -209,6 +209,10 @@ private string GetRequestedId(params string[] identifiers)
                 }
                 foreach (var identifier in identifiers)
                 {
+                    if (identifier == null)
+                    {
+                        continue;
+                    }
                     if (SdkInfo.IsNumeric(identifier) || identifier.Contains(":"))
                     {
                         return identifier;
@@ -226,6 +230,10 @@ private string GetRequestedLanguage(params string[] identifiers)
             {
                 foreach (var identifier in identifiers)
                 {
+                    if (identifier == null)
+                    {
+                        continue;
+                    }
                     try
                     {
                         var c = CultureInfo.GetCultureInfo(identifier);
diff --git a/src/Sportradar.OddsFeed.SDK.Entities.REST/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK.Entities.REST/Properties/AssemblyInfo.cs
index 20491f5..b511cb6 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities.REST/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK.Entities.REST/Properties/AssemblyInfo.cs
@@ -44,5 +44,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Sportradar.OddsFeed.SDK.Entities.REST/RestEntities.cd b/src/Sportradar.OddsFeed.SDK.Entities.REST/RestEntities.cd
index c687613..2e0e918 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities.REST/RestEntities.cd
+++ b/src/Sportradar.OddsFeed.SDK.Entities.REST/RestEntities.cd
@@ -3,16 +3,18 @@
   <Class Name="Sportradar.OddsFeed.SDK.Entities.REST.Internal.Caching.CI.PlayerProfileCI">
     <Position X="7.5" Y="1.75" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AAIBgABABACBAAQgBAAAAEBAAGAQAQAAAQAAAAAQBBA=</HashCode>
+      <HashCode>ACIBkABABACBAISgJAAAAkBAAGgQAQAAAQAAAAAQBBA=</HashCode>
       <FileName>Internal\Caching\CI\PlayerProfileCI.cs</FileName>
     </TypeIdentifier>
+    <Lollipop Position="0.2" />
   </Class>
   <Class Name="Sportradar.OddsFeed.SDK.Entities.REST.Internal.Caching.CI.CompetitorCI">
     <Position X="12" Y="1.75" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AGAAgCAACIAIAAAgFAEIAURAAAgERQAQIAYQAAAABBA=</HashCode>
+      <HashCode>BGQAkCAAiIAYggDgtAEICUxCACgERYCSIAYABAAABBA=</HashCode>
       <FileName>Internal\Caching\CI\CompetitorCI.cs</FileName>
     </TypeIdentifier>
+    <Lollipop Position="0.2" />
   </Class>
   <Class Name="Sportradar.OddsFeed.SDK.Entities.REST.Internal.Caching.CI.SportEntityCI">
     <Position X="9.75" Y="0.5" Width="1.5" />
@@ -77,5 +79,12 @@
       <FileName>ICompetitor.cs</FileName>
     </TypeIdentifier>
   </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ITeamCompetitorV1">
+    <Position X="3" Y="8.25" Width="2.25" />
+    <TypeIdentifier>
+      <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>ITeamCompetitorV1.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
   <Font Name="Segoe UI" Size="9" />
 </ClassDiagram>
\ No newline at end of file
diff --git a/src/Sportradar.OddsFeed.SDK.Entities.REST/SportEventHierarchy.cd b/src/Sportradar.OddsFeed.SDK.Entities.REST/SportEventHierarchy.cd
index f88bd5e..5696413 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities.REST/SportEventHierarchy.cd
+++ b/src/Sportradar.OddsFeed.SDK.Entities.REST/SportEventHierarchy.cd
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <ClassDiagram MajorVersion="1" MinorVersion="1" MembersFormat="NameAndType">
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ICompetition">
-    <Position X="7.25" Y="3.5" Width="3.5" />
+    <Position X="14.25" Y="3.5" Width="3.5" />
     <TypeIdentifier>
       <HashCode>AAAIAAAAAAAAAAAQAAAEAAIAAAAAAAAAAAAAAAAAAEA=</HashCode>
       <FileName>ICompetition.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ISoccerEvent">
-    <Position X="13" Y="9.75" Width="2.75" />
+    <Position X="15.75" Y="6.5" Width="2.75" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>ISoccerEvent.cs</FileName>
@@ -63,22 +63,22 @@
       <FileName>IBasicTournament.cs</FileName>
     </TypeIdentifier>
   </Interface>
-  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ITournamentInfo" Collapsed="true">
-    <Position X="39.25" Y="0.5" Width="1.5" />
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ITournamentInfo">
+    <Position X="27.5" Y="0.5" Width="2.5" />
     <TypeIdentifier>
       <HashCode>AAACgAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAADAA=</HashCode>
       <FileName>ITournamentInfo.cs</FileName>
     </TypeIdentifier>
   </Interface>
-  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ICurrentSeasonInfo" Collapsed="true">
-    <Position X="37.5" Y="0.5" Width="1.5" />
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ICurrentSeasonInfo">
+    <Position X="30.5" Y="0.5" Width="2.25" />
     <TypeIdentifier>
       <HashCode>AAACgEAAJAAACAAAAAAAAAAgAEAAAAAAAAAAAEAABAA=</HashCode>
       <FileName>ICurrentSeasonInfo.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IDraw">
-    <Position X="14.5" Y="3.5" Width="3.25" />
+    <Position X="14.5" Y="0.75" Width="3.25" />
     <TypeIdentifier>
       <HashCode>AAAAAAAgAAAAAAAAAAgAAAIAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>IDraw.cs</FileName>
@@ -91,75 +91,110 @@
       <FileName>ILottery.cs</FileName>
     </TypeIdentifier>
   </Interface>
-  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ISportEventV1" Collapsed="true">
-    <Position X="18.5" Y="3.5" Width="1.5" />
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ISportEventV1">
+    <Position X="18.5" Y="3.5" Width="3" />
     <TypeIdentifier>
       <HashCode>AAAAAAAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>ISportEventV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ICompetitionV1">
-    <Position X="4.25" Y="6.25" Width="1.5" />
+    <Position X="12" Y="3.75" Width="1.5" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>ICompetitionV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IStageV1">
-    <Position X="6.25" Y="9" Width="1.5" />
+    <Position X="6.5" Y="9" Width="3.25" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>IStageV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IStageV2">
-    <Position X="5" Y="11.25" Width="1.75" />
+    <Position X="6.5" Y="10.75" Width="3.25" />
     <TypeIdentifier>
       <HashCode>AAAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAA=</HashCode>
       <FileName>IStageV2.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ICompetitionV2">
-    <Position X="10.25" Y="11" Width="1.5" />
+    <Position X="9.75" Y="3.75" Width="1.5" />
     <TypeIdentifier>
       <HashCode>AAAACABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>ICompetitionV2.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IMatchV1">
-    <Position X="7.25" Y="10.75" Width="1.5" />
+    <Position X="10.75" Y="9.75" Width="2.75" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>IMatchV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IMatchV2">
-    <Position X="7.25" Y="12.75" Width="1.5" />
+    <Position X="10.75" Y="11.5" Width="2.75" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAA=</HashCode>
       <FileName>IMatchV2.cs</FileName>
     </TypeIdentifier>
   </Interface>
-  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IBasicTournamentV1" Collapsed="true">
-    <Position X="21.75" Y="7.75" Width="1.5" />
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IBasicTournamentV1">
+    <Position X="20.75" Y="7.25" Width="3.5" />
     <TypeIdentifier>
       <HashCode>IAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
       <FileName>IBasicTournamentV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
-  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IBasicTournamentV2" Collapsed="true">
-    <Position X="21.75" Y="9.25" Width="1.5" />
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IBasicTournamentV2">
+    <Position X="20.75" Y="8.75" Width="3.5" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAA=</HashCode>
       <FileName>IBasicTournamentV2.cs</FileName>
     </TypeIdentifier>
   </Interface>
   <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IDrawV1">
-    <Position X="15.25" Y="5.75" Width="1.5" />
+    <Position X="12.25" Y="0.75" Width="1.5" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAA=</HashCode>
       <FileName>IDrawV1.cs</FileName>
     </TypeIdentifier>
   </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IStageV3">
+    <Position X="6.5" Y="13" Width="3.25" />
+    <TypeIdentifier>
+      <HashCode>AAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>IStageV3.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.IMatchV3">
+    <Position X="10.75" Y="13.25" Width="2.75" />
+    <TypeIdentifier>
+      <HashCode>AAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>IMatchV3.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ILotteryV1">
+    <Position X="25" Y="8" Width="3.25" />
+    <TypeIdentifier>
+      <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>ILotteryV1.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ITournamentV1">
+    <Position X="29" Y="7.75" Width="3.25" />
+    <TypeIdentifier>
+      <HashCode>IAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>ITournamentV1.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
+  <Interface Name="Sportradar.OddsFeed.SDK.Entities.REST.ITournamentV2">
+    <Position X="29" Y="9.75" Width="3.25" />
+    <TypeIdentifier>
+      <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAA=</HashCode>
+      <FileName>ITournamentV2.cs</FileName>
+    </TypeIdentifier>
+  </Interface>
   <Font Name="Segoe UI" Size="9" />
 </ClassDiagram>
\ No newline at end of file
diff --git a/src/Sportradar.OddsFeed.SDK.Entities/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK.Entities/Properties/AssemblyInfo.cs
index ed1f42d..038e9e6 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK.Entities/Properties/AssemblyInfo.cs
@@ -41,7 +41,7 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
 
 [assembly: InternalsVisibleTo("DynamicProxyGenAssembly2")]
\ No newline at end of file
diff --git a/src/Sportradar.OddsFeed.SDK.Messages/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK.Messages/Properties/AssemblyInfo.cs
index 48b011a..2b27a47 100644
--- a/src/Sportradar.OddsFeed.SDK.Messages/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK.Messages/Properties/AssemblyInfo.cs
@@ -39,5 +39,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Sportradar.OddsFeed.SDK/NugetPackage.nuspec b/src/Sportradar.OddsFeed.SDK/NugetPackage.nuspec
index 835cbb1..b3f35b7 100644
--- a/src/Sportradar.OddsFeed.SDK/NugetPackage.nuspec
+++ b/src/Sportradar.OddsFeed.SDK/NugetPackage.nuspec
@@ -2,7 +2,7 @@
 <package>
   <metadata>
     <id>Sportradar.OddsFeed.SDK</id>
-    <version>1.51.0</version>
+    <version>1.52.0</version>
     <title>Odds Feed SDK</title>
     <authors>Sportradar AG</authors>
     <owners>Sportradar AG</owners>
@@ -10,7 +10,7 @@
     <licenseUrl>http://sdk.sportradar.com</licenseUrl>
     <requireLicenseAcceptance>true</requireLicenseAcceptance>
     <description>The SDK simplifying the consumption of Sportradar's Unified Odds feed.</description>
-    <releaseNotes>Release 1.51.0</releaseNotes>
+    <releaseNotes>Release 1.52.0</releaseNotes>
     <copyright>Copyright © Sportradar AG 2016-2022</copyright>
     <tags>SportRadar OddsFeed UnifiedFeed SDK</tags>
 
diff --git a/src/Sportradar.OddsFeed.SDK/Properties/AssemblyInfo.cs b/src/Sportradar.OddsFeed.SDK/Properties/AssemblyInfo.cs
index 7016fa5..82117c5 100644
--- a/src/Sportradar.OddsFeed.SDK/Properties/AssemblyInfo.cs
+++ b/src/Sportradar.OddsFeed.SDK/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Sportradar.OddsFeed.SDK/Readme.txt b/src/Sportradar.OddsFeed.SDK/Readme.txt
index 4d1be99..b638b21 100644
--- a/src/Sportradar.OddsFeed.SDK/Readme.txt
+++ b/src/Sportradar.OddsFeed.SDK/Readme.txt
@@ -9,6 +9,20 @@ Important: Version 1.1.0.0 includes breaking changes, below are the steps needed
 
 
 CHANGE LOG:
+2022-04-26  1.52.0
+Separate HttpClient for critical (summary, player profile, competitor profile and variant market description) and other requests
+Added configuration option for fast HttpClient in OperationManager (default timeout 5s)
+Added GetTimelineEventsAsync to ISportDataProvider - extended with ISportDataProviderV11 
+Improved merging of competitor profile
+Modified sliding expiration of profile cache items to avoid GC congestion
+Improved how SportDataProvider is handling exceptions
+Improved metrics and logging for raw data events
+Improved metrics with app and system metrics
+Added metrics for SemaphorePool
+Fixed exception handling in DataRouterManager
+Extended RawApiDataEventArgs with RequestParams, RequestTime and Language
+Other minor improvements for observability
+
 2022-02-23  1.51.0
 Added BetradarName to IRound (extended with IRoundV3)
 Fix: ICompetition competitors did not expose IsVirtual correctly
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.API.Test/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.API.Test/Properties/AssemblyInfo.cs
index 01ed2e9..a06e9a5 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.API.Test/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.API.Test/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.Common.Test/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.Common.Test/Properties/AssemblyInfo.cs
index 93e1e1c..af8bc2b 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.Common.Test/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.Common.Test/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.Entities.REST.Test/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.Entities.REST.Test/Properties/AssemblyInfo.cs
index 9531503..74aa0c1 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.Entities.REST.Test/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.Entities.REST.Test/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.Entities.Test/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.Entities.Test/Properties/AssemblyInfo.cs
index 4cae4b5..cb56d4e 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.Entities.Test/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.Entities.Test/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.Messages.Test/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.Messages.Test/Properties/AssemblyInfo.cs
index 24b9251..20742d2 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.Messages.Test/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.Messages.Test/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]
diff --git a/src/Tests/Sportradar.OddsFeed.SDK.Test.Shared/Properties/AssemblyInfo.cs b/src/Tests/Sportradar.OddsFeed.SDK.Test.Shared/Properties/AssemblyInfo.cs
index 1702598..b76e755 100644
--- a/src/Tests/Sportradar.OddsFeed.SDK.Test.Shared/Properties/AssemblyInfo.cs
+++ b/src/Tests/Sportradar.OddsFeed.SDK.Test.Shared/Properties/AssemblyInfo.cs
@@ -41,5 +41,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.51.0.0")]
-[assembly: AssemblyFileVersion("1.51.0.0")]
+[assembly: AssemblyVersion("1.52.0.0")]
+[assembly: AssemblyFileVersion("1.52.0.0")]