diff --git a/xml/System.Reflection/FieldInfo.xml b/xml/System.Reflection/FieldInfo.xml
index 5f0e3b4c4c2..419a09b6ba4 100644
--- a/xml/System.Reflection/FieldInfo.xml
+++ b/xml/System.Reflection/FieldInfo.xml
@@ -660,9 +660,23 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>Gets the modified type of this field object.</summary>
+        <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to obtain custom modifiers from a function pointer.
+
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+
+ This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
+  
+ ]]></format>
+        </remarks>        
+        <altmember cref="M:System.Reflection.FieldInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">
diff --git a/xml/System.Reflection/ParameterInfo.xml b/xml/System.Reflection/ParameterInfo.xml
index 64482ed6dfb..f44ffc2d06a 100644
--- a/xml/System.Reflection/ParameterInfo.xml
+++ b/xml/System.Reflection/ParameterInfo.xml
@@ -726,9 +726,23 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>Gets the modified type of this parameter object.</summary>
+        <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to obtain custom modifiers from a function pointer.
+
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+
+ This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
+  
+ ]]></format>
+        </remarks>        
+        <altmember cref="M:System.Reflection.ParameterInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">
diff --git a/xml/System.Reflection/PropertyInfo.xml b/xml/System.Reflection/PropertyInfo.xml
index da31d610f42..c4f9c399a98 100644
--- a/xml/System.Reflection/PropertyInfo.xml
+++ b/xml/System.Reflection/PropertyInfo.xml
@@ -989,9 +989,23 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>Gets the modified type of this property object.</summary>
+        <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ A modified type supports <xref:System.Type.GetOptionalCustomModifiers%2A>, <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetFunctionPointerCallingConventions%2A> which are used to obtain custom modifiers from a function pointer.
+
+ To obtain the normal, unmodified type from a modified type, use <xref:System.Type.UnderlyingSystemType%2A>.
+ 
+ This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
+  
+ ]]></format>
+        </remarks>        
+        <altmember cref="M:System.Reflection.PropertyInfo.GetOptionalCustomModifiers" />
+        <altmember cref="M:System.Reflection.PropertyInfo.GetRequiredCustomModifiers" />
+        <altmember cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />
+        <altmember cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
       </Docs>
     </Member>
     <Member MemberName="GetOptionalCustomModifiers">
diff --git a/xml/System/Type.xml b/xml/System/Type.xml
index 47ce7104860..af65f98cf0c 100644
--- a/xml/System/Type.xml
+++ b/xml/System/Type.xml
@@ -4209,9 +4209,26 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetFields%2A> method does
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>When overridden in a derived class, returns the calling conventions of the current function pointer <see cref="T:System.Type" />.</summary>
+        <returns>An array of <see cref="T:System.Type" /> objects representing all the calling conventions for the current function pointer <see cref="T:System.Type" />.
+  
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if no calling conventions are defined for the current function pointer <see cref="T:System.Type" />.
+
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if the current function pointer <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
+        </returns>
+        <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ This method is provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace.  
+  
+ ]]></format>
+        </remarks>      
+        <exception cref="T:System.InvalidOperationException">The current type is not a function pointer. That is, the <see cref="P:System.Type.IsFunctionPointer" /> property returns <see langword="false" />.</exception>
       </Docs>
     </Member>
     <Member MemberName="GetFunctionPointerParameterTypes">
@@ -4237,9 +4254,14 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetFields%2A> method does
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>When overridden in a derived class, returns the parameter types of the current function pointer <see cref="T:System.Type" />.</summary>
+        <returns>An array of <see cref="T:System.Type" /> objects representing all the parameter types for the current function pointer <see cref="T:System.Type" />.
+  
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if no parameters are defined for the current function pointer <see cref="T:System.Type" />.
+        </returns>
+        <exception cref="T:System.InvalidOperationException">The current type is not a function pointer. That is, the <see cref="P:System.Type.IsFunctionPointer" /> property returns <see langword="false" />.</exception>
       </Docs>
     </Member>
     <Member MemberName="GetFunctionPointerReturnType">
@@ -4265,9 +4287,9 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetFields%2A> method does
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>When overridden in a derived class, returns the return type of the current function pointer <see cref="T:System.Type" />.</summary>
+        <returns>A <see cref="T:System.Type" /> object representing the return type for the current function pointer <see cref="T:System.Type" />.</returns>
+        <exception cref="T:System.InvalidOperationException">The current type is not a function pointer. That is, the <see cref="P:System.Type.IsFunctionPointer" /> property returns <see langword="false" />.</exception>
       </Docs>
     </Member>
     <Member MemberName="GetGenericArguments">
@@ -7635,9 +7657,25 @@ If the current <xref:System.Type> represents a type parameter in the definition
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>When overridden in a derived class, returns the optional custom modifiers of the current <see cref="T:System.Type" />.</summary>
+        <returns>An array of <see cref="T:System.Type" /> objects that identify the optional custom modifiers of the current <see cref="T:System.Type" />.
+  
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> has no custom modifiers.
+
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
+        </returns>
+    <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ The <xref:System.Type.GetOptionalCustomModifiers%2A> and <xref:System.Type.GetRequiredCustomModifiers%2A> methods are provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
+  
+ ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <MemberGroup MemberName="GetProperties">
@@ -8903,9 +8941,25 @@ In .NET 6 and earlier versions, the <xref:System.Type.GetProperties%2A> method d
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <summary>When overridden in a derived class, returns the required custom modifiers of the current <see cref="T:System.Type" />.</summary>
+        <returns>An array of <see cref="T:System.Type" /> objects that identify the required custom modifiers of the current <see cref="T:System.Type" />.
+  
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> has no custom modifiers.
+ 
+ -or-  
+  
+ An empty array of type <see cref="T:System.Type" />, if the current <see cref="T:System.Type" /> is not a modified <see cref="T:System.Type" />. A modified <see cref="T:System.Type" /> is obtained from <see cref="M:System.Reflection.FieldInfo.GetModifiedFieldType" />, <see cref="M:System.Reflection.PropertyInfo.GetModifiedPropertyType" /> or <see cref="M:System.Reflection.ParameterInfo.GetModifiedParameterType" />
+        </returns>
+    <remarks>
+          <format type="text/markdown"><![CDATA[  
+  
+## Remarks  
+ The <xref:System.Type.GetRequiredCustomModifiers%2A> and <xref:System.Type.GetRequiredCustomModifiers%2A> methods are provided for designers of managed compilers. For more information on custom modifiers, see classes in the <xref:System.Runtime.CompilerServices> namespace. Also see the metadata specification in Partition II of the [Common Language Infrastructure (CLI) documentation](https://www.ecma-international.org/publications-and-standards/standards/ecma-335/).  
+  
+ ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <MemberGroup MemberName="GetType">
@@ -13536,9 +13590,9 @@ Byref-like structures are declared using `ref struct` keyword in C#. An instance
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets a value that indicates whether the current <see cref="T:System.Type" /> is a function pointer.</summary>
+        <value>
+          <see langword="true" /> if the current <see cref="T:System.Type" /> is a function pointer; otherwise, <see langword="false" />.</value>
       </Docs>
     </Member>
     <Member MemberName="IsGenericMethodParameter">
@@ -15767,9 +15821,9 @@ A signature type is a restricted type that can be passed to the <xref:System.Typ
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets a value that indicates whether the current <see cref="T:System.Type" /> is an unmanaged function pointer.</summary>
+        <value>
+          <see langword="true" /> if the current <see cref="T:System.Type" /> is an unmanaged function pointer; otherwise, <see langword="false" />.</value>
       </Docs>
     </Member>
     <Member MemberName="IsValueType">